262,612 results match your criteria Agricultural Economics-zemedelska Ekonomika[Journal]


ADAM phantom to test 4D medical imaging and dose delivery devices.

Phys Med Biol 2019 Apr 17. Epub 2019 Apr 17.

Agricultural, Food and Forestry System, Universita di Firenze, Florence, ITALY.

Radiotherapy treatment of moving lesions is a challenging task in which different strategies can be used. The clinical implementation of the variety of complex technical solutions pursued to treat cancer, while sparing healthy tissues, requires accurate quality assurance tests and adequate phantoms. The aim of this work is to report on the Anthropomorphic Dynamic breAthing Model (ADAM) and on its applications to test image quality and dose delivery for four-dimensional (4D) techniques used to compensate for breathing-induced tumor motion. Read More

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http://iopscience.iop.org/article/10.1088/1361-6560/ab1a49
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http://dx.doi.org/10.1088/1361-6560/ab1a49DOI Listing
April 2019
1 Read

Soil organic carbon stabilization mechanisms in a subtropical mangrove and salt marsh ecosystems.

Sci Total Environ 2019 Apr 10;673:502-510. Epub 2019 Apr 10.

Collaborative Innovation Center of Sustainable Forestry in Southern China of Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China.

Mangrove and salt marsh ecosystems are one of the most productive ecosystems in terrestrial ecosystems, playing an important role in global carbon (C) cycling. The anaerobic condition in coastal wetland usually impedes the decomposition of soil organic carbon (SOC). However, the intrinsic stabilization mechanisms of SOC other than environmental factors are poorly understood in coastal wetland. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.04.122DOI Listing

In-stream microhabitat mosaic depicts the success of mitigation measures and controls the Ecological Potential of benthic communities in heavily modified rivers.

Sci Total Environ 2019 Apr 10;673:489-501. Epub 2019 Apr 10.

Water Research Institute, National Research Council (CNR-IRSA), Brugherio, Italy.

The positive effect of mitigation measures on in-stream habitat conditions and the benthic community is recognised. In heavily modified rivers, though, the response of aquatic invertebrates to mitigation measures and habitat mosaic changes is scarcely documented. We used non-metric multidimensional scaling to explore the benthic community of leveed rivers in the agricultural lowlands of Northern Italy. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.04.124DOI Listing

Revelation of microalgae's lipid production and resistance mechanism to ultra-high Cd stress by integrated transcriptome and physiochemical analyses.

Environ Pollut 2019 Apr 8;250:186-195. Epub 2019 Apr 8.

State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, China. Electronic address:

The ultra-high Cd polluted environment is a special habitat in nature. Analysis of the biological adaptation and resistance mechanism of Auxenochlorella protothecoides UTEX234 to ultra-high Cd stress would offer some inspiring understanding on Cd detoxification mechanism and help discovering highly active bioremediation agents. In this study, integrated analyses of the transcriptome, multi-physiological and biochemical data and fatty acid profilings of UTEX2341 were performed for the first time. Read More

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http://dx.doi.org/10.1016/j.envpol.2019.04.018DOI Listing

Host bacterial community of MGEs determines the risk of horizontal gene transfer during composting of different animal manures.

Environ Pollut 2019 Apr 8;250:166-174. Epub 2019 Apr 8.

Key Laboratory of Agricultural Microbiology of Heilongjiang Province Science and Technology Department, Northeast Agricultural University, Harbin, 150030, China; College of Life Science, Northeast Agricultural University, Harbin, 150030, China. Electronic address:

Mobile genetic elements (MGEs) play critical roles in transferring antibiotic resistance genes (ARGs) among different microorganisms in the environment. This study aimed to explore the fate of MGEs during chicken manure (CM) and bovine manure (BM) composting to assess horizontal transfer risks of ARGs. The results showed that the removal efficiency of MGEs during CM composting was significantly higher than that during BM composting, because the potential host bacteria of MGEs were eliminated largely during CM composting. Read More

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http://dx.doi.org/10.1016/j.envpol.2019.04.037DOI Listing

Four new guaiane sesquiterpenoids from agarwood of Aquilaria filaria.

Fitoterapia 2019 Apr 14. Epub 2019 Apr 14.

Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China. Electronic address:

Six 8,12-epoxyguaiane sesquiterpenes (1-6), together with two known 2-(2-phenylethyl)chromone derivatives (7-8) were isolated from agarwood originating from Aquilaria filaria. Their structures were established by spectroscopic methods including IR, HRESIMS, 1D, and 2D NMR, and comparison with the published data. The absolute configuration of compound 1 was unambiguously determined by quantum chemical calculation of the electronic circular dichroism (ECD) spectrum. Read More

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http://dx.doi.org/10.1016/j.fitote.2019.04.007DOI Listing

Schekwanglupaside C, a new lupane saponin from Schefflera kwangsiensis, is a potent activator of sarcoplasmic reticulum Ca-ATPase.

Fitoterapia 2019 Apr 14. Epub 2019 Apr 14.

State Key Laboratory of Natural Medicines and Department of Pharmacology, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China. Electronic address:

Schefflera kwangsiensis Merr. ex H.L. Read More

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http://dx.doi.org/10.1016/j.fitote.2019.04.005DOI Listing

Genomic Sequences from Papua New Guinea: Lack of Genetic Connectivity with Northern Australian or East Timorese Genomes, and New Recombination Findings.

Plant Dis 2019 Apr 16:PDIS09181666RE. Epub 2019 Apr 16.

2 UWA Institute of Agriculture, Faculty of Science, The University of Western Australia, Crawley, WA, Australia.

(ZYMV) isolates were obtained in Papua New Guinea (PNG) from cucumber () or pumpkin ( spp.) plants showing mosaic symptoms growing at Kongop in the Mount Hagen District, Western Highlands Province, or Zage in the Goroka District, Eastern Highlands Province. The samples were blotted onto FTA cards, which were sent to Australia, where they were subjected to high-throughput sequencing. Read More

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http://dx.doi.org/10.1094/PDIS-09-18-1666-REDOI Listing

Understanding the Transmissibility of Cucumber Green Mottle Mosaic Virus in Watermelon Seeds and Seed Health Assays.

Plant Dis 2019 Apr 17:PDIS10181787RE. Epub 2019 Apr 17.

2 U.S. Vegetable Laboratory, USDA-Agricultural Research Service, Charleston, SC, U.S.A.

Cucumber green mottle mosaic virus (CGMMV), an emerging tobamovirus, has caused serious disease outbreaks to cucurbit crops in several countries, including the United States. Although CGMMV is seed-borne, the mechanism of its transmission from a contaminated seed to germinating seedling is still not fully understood, and the most suitable seed health assay method has not been well established. To evaluate the mechanism of seed transmissibility, using highly contaminated watermelon seeds collected from CGMMV-infected experimental plants, bioassays were conducted in a greenhouse through seedling grow-out and by mechanical inoculation. Read More

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http://dx.doi.org/10.1094/PDIS-10-18-1787-REDOI Listing

Control of Wheat Fusarium Head Blight by Heat-Stable Antifungal Factor (HSAF) from .

Plant Dis 2019 Apr 17:PDIS09181517RE. Epub 2019 Apr 17.

1 Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food Quality and Safety, State Key Laboratory Cultivation Base of Ministry of Science and Technology, Nanjing 210014, P.R. China.

Heat-stable antifungal factor (HSAF), which belongs to the polycyclic tetramate macrolactam family, was isolated from fermentations and exhibited inhibitory activities against a wide range of fungal pathogens. In this study, the antifungal activity of HSAF against in vitro and in vivo was investigated. A total of 50% of mycelial growth of was suppressed with 4. Read More

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http://dx.doi.org/10.1094/PDIS-09-18-1517-REDOI Listing

Expanding Knowledge of the Host Range of and Host Plant Preference of MEAM1.

Plant Dis 2019 Apr 17:PDIS11181941RE. Epub 2019 Apr 17.

2 United States Department of Agriculture-Agricultural Research Service, Salinas, CA, U.S.A.

The crinivirus (ToCV) is often found infecting tomato crops in Brazil, with variable incidence, but associated with prevalence of its primary vector, MEAM1. ToCV control is difficult because there are no resistant commercial tomato varieties or hybrids available and chemical spray for control of the whitefly vector has not been effective. The present study evaluated the partial host range of a Brazilian isolate of ToCV and the preference of MEAM1 for oviposition on those species identified as susceptible to the virus. Read More

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https://apsjournals.apsnet.org/doi/10.1094/PDIS-11-18-1941-R
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http://dx.doi.org/10.1094/PDIS-11-18-1941-REDOI Listing
April 2019
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Association between consumption of fruit or processed fruit and chronic diseases and their risk factors: a systematic review of meta-analyses.

Nutr Rev 2019 Apr 17. Epub 2019 Apr 17.

University of Clermont Auvergne, French National Institute for Agricultural Research (INRA), Human Nutrition Unit, Clermont-Ferrand, France.

Context: The degree of fruit processing is rarely considered in epidemiological studies of fruit consumption.

Objective: Pooled analyses and meta-analyses of cohort studies and randomized controlled trials that linked fruit consumption with the risk of chronic disease and metabolic deregulation were reviewed systematically to examine the effects of fruit processing.

Data Sources: The Web of Science and Cochrane Library databases were searched until June 2018. Read More

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https://academic.oup.com/nutritionreviews/advance-article/do
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http://dx.doi.org/10.1093/nutrit/nuz004DOI Listing
April 2019
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Saikosaponin A protects chickens against pullorum disease via modulation of cholesterol.

Poult Sci 2019 Apr 17. Epub 2019 Apr 17.

Department of Animal Medicine, College of Agriculture and Forestry, Linyi University, Linyi, Shandong 276000, P.R. China.

The worsening problem of antibiotic resistance prompts the need for alternative strategies that do not directly target bacteria. Virulent Salmonella pullorum strains can invade macrophages and lead to a systemic infection. Saikosaponin A (SSa), a bioactive saponin isolated from Radix bupleuri, has been demonstrated to exhibit anti-inflammatory, hepatoprotective, and cholesterol regulatory activity. Read More

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http://dx.doi.org/10.3382/ps/pez197DOI Listing

Effects of dietary energy and protein content and lipid source on growth performance and carcass traits in Pekin ducks.

Poult Sci 2019 Apr 17. Epub 2019 Apr 17.

State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.

The present study was conducted to determine the impact of dietary energy and protein concentrations and lipid sources on growth performance and carcass traits of Pekin ducks. In Exp. 1, 15-day-old ducks (6 replicate pens, 60 ducks/pen) were randomly assigned to 4 dietary treatments with different metabolizable energy (ME) and crude protein (CP) concentrations (2,850 kcal/kg and 16%, 2,950 kcal/kg and 16. Read More

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http://dx.doi.org/10.3382/ps/pez217DOI Listing

TLR2/4 signaling pathway mediates sperm-induced inflammation in bovine endometrial epithelial cells in vitro.

PLoS One 2019 17;14(4):e0214516. Epub 2019 Apr 17.

Graduate School of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan.

We have recently shown that sperm attachment to bovine endometrial epithelial cells (BEECs) triggers uterine local innate immunity with induction of a pro-inflammatory response in vitro, however details of the mechanism remain unknown. Here, we investigated the involvement of Toll-like receptor 2/4 (TLR2/4) pathway in mediating sperm-BEECs inflammatory process. Immunohistochemistry of the uterine tissue revealed that TLR2 and TLR4 proteins were present in the luminal and glandular epithelia of bovine endometrium. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0214516PLOS

Monoclonal antibodies point to Achilles' heel in picornavirus capsid.

Authors:
Mihnea Bostina

PLoS Biol 2019 Apr 17;17(4):e3000232. Epub 2019 Apr 17.

Department of Microbiology and Immunology and Otago Micro and Nano Imaging, University of Otago, Dunedin, New Zealand.

Picornaviruses are small, icosahedral, nonenveloped, positive-sense, single-stranded RNA viruses that form one of the largest and most important viral families. Numerous Picornaviridae members pose serious health or agricultural threats, causing diseases such as poliomyelitis, hepatitis A, or foot-and-mouth disease. The antigenic characterization of picornavirus capsids plays an important role in understanding the mechanism of viral neutralization and the conformational changes associated with genome release, and it can point to regions which can be targeted by small-molecule compounds to be developed as antiviral inhibitors. Read More

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http://dx.doi.org/10.1371/journal.pbio.3000232DOI Listing

A bipartite begomovirus infecting (family ) in the Dominican Republic represents a distinct phylogenetic lineage and has a high degree of host specificity.

Phytopathology 2019 Apr 17. Epub 2019 Apr 17.

University of California, Davis, Department of Plant Pathology , 1 Shields Ave , Davis, California, United States , 95616 ;

plants in and around agricultural fields in the Azua Valley of the southeastern Dominican Republic often show striking golden mosaic symptoms. Leaf samples from plants showing these symptoms were collected in 2012 and 2013, and PCR tests with degenerate primers revealed begomovirus DNA-A and DNA-B components. The complete sequences of the DNA-A and DNA-B components of four isolates show high degree of sequence identity (>96%), and a genome organization typical of New World (NW) bipartite begomoviruses. Read More

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http://dx.doi.org/10.1094/PHYTO-02-19-0061-RDOI Listing

Improved Evaluation of Wheat Cultivars (Lines) on Resistance to f. sp. Using Molecular Disease Index.

Plant Dis 2019 Apr 15:PDIS07181158RE. Epub 2019 Apr 15.

1 Department of Plant Pathology, Ministry of Agriculture and Rural Affairs (MOA) Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, China; and.

Wheat stripe rust caused by f. sp. is one of the most destructive diseases of wheat worldwide. Read More

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http://dx.doi.org/10.1094/PDIS-07-18-1158-REDOI Listing

Rheological and Microstructural Characteristics of Canola Protein Isolate-Chitosan Complex Coacervates.

J Food Sci 2019 Apr 17. Epub 2019 Apr 17.

the NSW Dept. of Primary Industries, Yanco Agricultural Inst., Yanco, NSW, 2703, Australia.

Wastage of byproducts such as canola meal is a pressing environmental concern, and canola protein isolate (CPI)-chitosan (Ch) coacervates have a good potential to utilize and convert the wastes into a high value added product. Yet so far, there is very limited rheological and microstructural information to assist in proper utilization of CPI -Ch complex coacervates. The rheological and microstructural properties of the complex coacervates formed from CPI and chitosan Ch at various CPI-to-Ch mixing ratios (1:1, 16:1, 20:1, and 30:1) and pH values (5. Read More

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http://dx.doi.org/10.1111/1750-3841.14599DOI Listing

Effect of Brine Acidification on Fermentation Microbiota, Chemistry, and Texture Quality of Cucumbers Fermented in Calcium or Sodium Chloride Brines.

J Food Sci 2019 Apr 17. Epub 2019 Apr 17.

Food Science Research Unit, U.S. Dept. of Agriculture, Agricultural Research Service, SEA, North Carolina State Univ., 322 Schaub Hall, Box 7624, Raleigh, NC, 27695-7624, U.S.A.

Commercial fermentation for bulk preservation of cucumbers relies on natural microbiota and approximately 1 M sodium chloride (NaCl) brines, resulting in large volumes of high-salt wastewater. An alternative process utilizing 0.1 M calcium chloride (CaCl ) as the only salt was developed to eliminate NaCl from fermentation brines for reduced environmental impact. Read More

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http://dx.doi.org/10.1111/1750-3841.14600DOI Listing

Heat stress suppresses Brassica napus seed oil accumulation by inhibition of photosynthesis and BnWRI1 pathway.

Plant Cell Physiol 2019 Apr 17. Epub 2019 Apr 17.

State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.

Heat stress during Brassica napus seed filling severely impairs yield and oil content. However, the mechanisms underlying heat-stress effects on B. napus seed photosynthesis and oil accumulation remain elusive. Read More

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http://dx.doi.org/10.1093/pcp/pcz052DOI Listing

Btr1-A Induces Grain Shattering and Affects Spike Morphology and Yield-related Traits in Wheat.

Plant Cell Physiol 2019 Apr 17. Epub 2019 Apr 17.

State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, PR China.

Spike brittleness represents an important domestication trait in crops. Although the brittle rachis of wild wheat was cloned, however, the molecular mechanism underlying spike brittleness is yet to be elucidated. Here, we identified a single dominant brittle rachis gene Br-Ab on chromosome arm 3AbS using an F2 population of diploid wheat and designated Btr1-Ab. Read More

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http://dx.doi.org/10.1093/pcp/pcz050DOI Listing

Exploring the Insecticide and Acaricide Potential of Development Regulators obtained from Restinga vegetation from Brazil.

An Acad Bras Cienc 2019 8;91(1):e20180381. Epub 2019 Apr 8.

Laboratório de Estudos de Pragas e Parasitas, Departamento de Biologia Celular e Molecular, Universidade Federal Fluminense, Outeiro de São João Batista, s/n Centro, 24020 140 Niterói, RJ, Brazil.

As a part of our continuing search for insect and arthropod development regulators from Brazilian restinga vegetation of the Rio de Janeiro State, crude extracts, purified fractions and essential oils were submitted to screening tests seeking for biological activities on the development of the insects Rhodnius prolixus, Dysdercus peruvianus, Oncopeltus fasciatus and Rhipicephalus (Boophilus) microplus. Up to now, 102 secondary metabolites have been detected in the fractions, among them monoterpenes, sesquiterpenes and two triterpenes which were obtained from the species, Eugenia sulcata, Pilocarpus spicatus, Manilkara subsericea, Myrciaria floribunda and Zanthoxylum caribaeum. These secondary plant metabolites are considered of interest for the use of studies related to arthropod endocrinology, vector-parasite interaction system, and population control of vector insect and agricultural pest. Read More

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http://dx.doi.org/10.1590/0001-3765201920180381DOI Listing

Grifola frondosa polysaccharides ameliorate lipid metabolic disorders and gut microbiota dysbiosis in high-fat diet fed rats.

Food Funct 2019 Apr 17. Epub 2019 Apr 17.

Institute of Food Science and Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian 350108, China. and National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China and College of Light Industry and Food Science, Zhongkai University of Agricultural Engineering, Guangzhou 510225, China and Department of Flavor Chemistry, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart 70599, Germany and College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.

The purpose of this study was to assess the potential effects of polysaccharides from edible mushroom Grifola frondosa (GFP) on lipid metabolic disorders and gut microbiota dysbiosis, and elucidate their possible regulatory mechanisms on lipid and cholesterol metabolism in high-fat diet (HFD)-exacerbated hyperlipidemic and hypercholesterolemic rats. Results showed that oral administration of GFP markedly alleviated dyslipidaemia through decreasing the serum levels of total triglycerides, total cholesterol, and free fatty acids, and significantly suppressing hepatic lipid accumulation and steatosis. Besides, the excretion of fecal bile acids was also promoted by oral administration of GFP. Read More

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http://dx.doi.org/10.1039/c9fo00075eDOI Listing

A rapidly self-assembling soft-brush DNA hydrogel based on RCA products.

Chem Commun (Camb) 2019 Apr 17. Epub 2019 Apr 17.

Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China. and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, P. R. China, Beijing, 100083, China.

A rapid self-assembly strategy was developed for fabricating a novel soft-brush DNA hydrogel in one minute by introducing a pair of L-type probes into the RCA products. The L-type probes with universality achieved a controllable size and morphology of the DNA hydrogel, providing deeper insight into variability and probability in functional biomaterials. Read More

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http://xlink.rsc.org/?DOI=C9CC01022J
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http://dx.doi.org/10.1039/c9cc01022jDOI Listing
April 2019
1 Read

A Comparative Study of Single-Trait and Multi-Trait Genomic Selection.

J Comput Biol 2019 Apr 17. Epub 2019 Apr 17.

ICAR-Indian Agricultural Statistics Research Institute, Pusa, New Delhi, India.

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http://dx.doi.org/10.1089/cmb.2019.0032DOI Listing

Chemical Composition of Commercial Cow's Milk.

J Agric Food Chem 2019 Apr 17. Epub 2019 Apr 17.

Department of Biological Sciences , University of Alberta , Edmonton , Alberta , Canada T6G 2E9.

Bovine milk is a nutritionally rich, chemically complex biofluid consisting of hundreds of different components. While the chemical composition of cow's milk has been studied for decades, much of this information is fragmentary and very dated. In an effort to consolidate and update this information, we have applied modern, quantitative metabolomics techniques along with computer-aided literature mining to obtain the most comprehensive and up-to-date characterization of the chemical constituents in commercial cow's milk. Read More

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http://dx.doi.org/10.1021/acs.jafc.9b00204DOI Listing
April 2019
1 Read

[Substitution efficiency of agro-chemical input intensity and its influence factors].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1404-1414

China Institute of Regulation Research, Zhejiang University of Finance & Economics, Hangzhou 310018, China.

We examined the substitution efficiency of agro-chemical input intensity from 2000 to 2016 in China by employing SE-DEA model and Gini coefficient, and analyzed the driving factors of substitution efficiency with Tobit model. The results showed that the comprehensive efficiency and the scale efficiency of substitution of agro-chemical input intensity displayed the trend of "N-shaped", while the pure technical efficiency was enhanced with some fluctuations. The regional diffe-rences of substitution efficiency were obvious, with the eastern region relying more heavily on the input scale of substitution factors. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.035DOI Listing

[Effect of reduced nitrogen fertilization on carbon footprint in spring maize-late rice production system].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1397-1403

College of Environment and Resource Science, Zhejiang University, Hangzhou 310058, China.

With the growing concerns on global climate change and food security, low carbon agriculture in food production attracts more attention. Low carbon agriculture needs to balance higher-level crop yields and lower greenhouse gas emission in production process. Improving nitrogen mana-gement may help mitigate greenhouse gas emission and achieve stable or higher crop yields in crop production systems. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.038DOI Listing

[Effects of different land use patterns on soil potassium distribution in Chengdu Plain, China].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1389-1396

College of Resources and Environment, Sichuan Agricultural University, Chengdu 611130, China.

To explore the effects of land use change on the potassium in soil profile under the background of rapid urbanization, we collected data of 187 soil profiles from four typical land use patterns (rice-wheat, rice-vegetable, rice-oil and garden) in Chengdu Plain. The contents of available potassium (AP), slow-acting potassium (SP), mineral potassium (MP), and total potassium (TP) in soil profile under different land use patterns and their relationships were analyzed. Our results showed that compared with the traditional rotation (rice-wheat, rice-oil), soil AP and SP contents significantly varied among different land use patterns. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.023DOI Listing

[Effects of nitrogen application levels on translocation and distribution of C-photosynthate and N to fruit from leaves of apple tree].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1373-1379

College of Horticulture Science and Enginee-ring, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai'an 271018, Shandong, China.

A field experiment was carried out in a six-year old 'Fuji3'/M26/Malus hupehensis Rehd. apple with N and C labeled tracers, to understand C assimilation capability and the characteristics of translocation and distribution of C-photosynthate and N to fruit under different nitrogen application levels (urea 0%, 0.6%, 1. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.011DOI Listing

[Effects of split combined application of organic-inorganic fertilizers on plant growth, N absorption, utilization and loss of Gala apple tree].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1367-1372

College of Horticulture Science and Engineering, Shandong Agricultural University/State Key Laboratory of Crop Biology, Tai'an 271018, Shandong, China.

Fifteen-year-old 'Gala'/M. hupehensis Rehd. trees and N trace technique were used to explore the effects of split combined application of organic-inorganic fertilizers on plant growth, N absorption, utilization and loss. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.017DOI Listing

[Variation of community structure and function of rhizospheric denitrifiers at tillering and booting stages of rice].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1344-1350

Key Laboratory of Agro-ecological Processes in Subtropical Regions/Taoyuan Agro-ecosystem Research Station, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China.

We investigated the variation of denitrifying communities in rice rhizosphere at tillering and booting stages in comparison with bulk soils with a pot experiment. The techniques of quantitative polymerase chain reaction (qPCR) and terminal restriction fragment length polymorphism (T-RFLP) were used to measure the abundance and community composition of denitrifiers (narG and nosZ), respectively. The results showed that the potential denitrification activity in the rhizosphere at tillering stage was significantly lower than bulk soils. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.022DOI Listing

[Responses of soil microbial biomass C and P to different long-term fertilization treatments in the yellow paddy soil].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1327-1334

Scientific Observing and Experimental Station of Arable Land Conservation and Agriculture Environment Guizhou, Ministry of Agriculture and Rural Affairs, Guiyang 550006, China.

To explore the rational fertilization mode to improve the availability of soil phosphorus (P), we analyzed the changes and coupling characteristics of soil carbon (C) and P, microbial biomass C (MBC) and P (MBP) under different fertilization modes with a successive 22-year field experiment in yellow paddy soil. The experiment had 10 treatments, including no fertilization (CK), single application of nitrogen (N), combination of phosphorus and potassium (PK), combination of nitrogen and potassium (NK), combination of nitrogen and phosphorus (NP), combination of nitrogen, phosphorus and potassium (NPK), single application of organic fertilizer (M), and three organic-inorganic fertilizer combinations (1/4M+3/4NP, 0.5MNP, MNPK). Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.020DOI Listing

[Effects of aerated irrigation on CO and NO emission from protected melon soils under different nitrogen application levels].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1319-1326

Ministry of Education Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Northwest A&F University, Yangling 712100, Shaanxi, China.

To reveal the effects of coupling nitrogen (N) application and aerated irrigation on soil CO and NO emission, and their relationship with soil temperature and moisture, an experiment was conducted in greenhouse melon fields by using the method of static chamber/gas chromatography to determine the CO and NO emissions of different nitrogen rates under aerated irrigation. There were two irrigation factors (AI: aerated irrigation; CK: conventional irrigation) and three N levels (N: 0; N: 150 kg·hm, the traditional nitrogen application rate was 2/3; N: 225 kg·hm, traditional nitrogen application rate). The results showed that soil CO and NO emissions in AI treatment were higher than those in CK, but no significant difference was observed between the two irrigation methods. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.027DOI Listing

[Effects of corn straw biochar on process, nutrient content, and CO emissions of corn straw decomposition].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1312-1318

Rice Research Institute, College of Agriculture, Shenyang Agricultural University, Shenyang 110866, China.

Biochar has unique physicochemical properties of being rich in carbon, being alkaline, and exhibiting a highly porous structure, which can adjust features of different systems. A 90-day microcosm incubation experiment was performed to investigate the effects of corn straw biochar on the process, properties, nutrient contents, and CO emissions during corn straw composting. There were four treatments, including control (CK), 5% biochar addition (B, as mass fractions of biochar), 10% biochar addition (B), and 20% biochar addition (B). Read More

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http://www.cnki.net/kcms/doi/10.13287/j.1001-9332.201904.015
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http://dx.doi.org/10.13287/j.1001-9332.201904.015DOI Listing
April 2019
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[Effects of different nitrogen fertilizers on annual emissions of greenhouse gas from maize field in Northeast China].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1303-1311

Institute of Agricultural Resources and Environment, Jilin Academy of Agricultural Sciences/State Engineering Laboratory of Maize, Changchun 130033, China.

A field experiment was conducted to investigate the greenhouse gas emission at high latitude farmland in Northeast China. We monitored the greenhouse gas emission using the static chamber-gas chromatography method. Four nitrogen (N) fertilizers were used: conventional N fertilization (CN), slow release fertilizer (SLN), urea plus nitrification inhibitor and urease inhibitor (NIUI), and no nitrogen fertilizer (NN). Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.030DOI Listing

[Ammonia volatilization and nitrogen use efficiency in the field of fresh edible maize as affec-ted by different band fertilization depths of controlled-release urea].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1295-1302

Institute of Plant Protection and Soil Fertilizer, Hubei Academy of Agricultural Sciences/Key Laboratory of Fertilization from Agricultural Wastes, Ministry of Agriculture and Rural Affairs, Wuhan 430064, China.

A field experiment was conducted to examine the effects of controlled-release urea (CRU) application on ammonia (NH) volatilization, nitrogen (N) use efficiency and fresh ear yield of fresh edible maize. The treatments included one control (CK: no N fertilizer application) and four different band fertilization depths (0, 5, 10, 15 and 20 cm). Results showed that NH volatilization from non-fertilization band and planting band mainly occurred in the first two weeks after the fertilization, which lasted for almost a month in the fertilization band. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.004DOI Listing

[Effects of stabilized N fertilizer combined with straw returning on rice yield and emission of NO and CH in a paddy field].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1287-1294

Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.

Based on a two-year field experiment located at Shenyang Applied Ecological Experiment Station of Chinese Academy of Sciences, we examined the effects of stabilized N fertilizer combined with straw returning on rice yield and emission of NO and CH in aquic brown soil. Six treatments were set up, i.e. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.026DOI Listing

[Effects of different kinds of organic fertilizer on fruit yield, quality and nutrient uptake of watermelon in gravel-mulched field].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1269-1277

Institute of Soil, Fertilizer and Water-saving Agriculture, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China.

The effects of different kinds of organic fertilizer on the growth, yield, quality, and nutrient absorption and utlization of watermelon were examined to provide theoretical basis for adequate fertilization and efficient production of watermelon in gravel-mulched field in the Loess Pla-teau of Northwest China. The growth index and nutrient absorption at main stages of growth and development, yield and quality of watermelon were compared among treatments of applying chemical fertilizer (CK), cattle dung, chicken manure, sheep manure and pig manure which contained the equal amount of nitrogen, phosphorus and potassium. The results showed that vegetative growth index, nitrogen and potassium transportation were promoted, yield and nutrient accumulation were improved in treatments of cattle dung, chicken manure and pig manure. Read More

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[Effects of irrigation frequency of organic nutrient solution and irrigation amount on yield, quality, fertilizer and water use efficiency of melon in facility].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1261-1268

College of Horticulture, Northwest A&F University/Key Laboratory of Protected Horticulture Engineering in Northwest China, Ministry of Agriculture, Yangling 712100, Shaanxi, China.

To investigate the organic cultivation mode for high-yield and high-quality melon, we measured the growth of melon that grown in pots with different conditions of organic nutrient solution and irrigation. There were three irrigation frequencies of organic nutrient solution (8-time application, each time 750 mL per plant, F; 12-time application, each time 500 mL per plant, F; 16-time application, each time 375 mL per plant, F) and two different irrigation amount per single plant (irrigating by 120% daily evapotranspiration (ET) before fruit enlargement, by 140%ET after fruit enlargement, W; irrigating by 140%ET before fruit enlargement, by 160%ET after fruit enlargement, W), following a randomized block trial design. The effects of those treatments on photosynthetic characteristics, yield, quality, fertilizer and water use efficiency of melon were investigated. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.037DOI Listing

[Effects of nitrogen fertilizer reduction management on photosynthesis and chlorophyll fluorescence characteristics of sweetpotato].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1253-1260

Crop Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230031, China.

Crop productivity depends on photosynthetic source capacity. Appropriate nitrogen (N) fertilizer management is beneficial for improving growth, photosynthetic capacity and thereby increasing crops yield. A two-year pot experiment was conducted with four N treatments, i. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.012DOI Listing

[Effects of straw returning amount and type on soil nitrogen and its composition].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1243-1252

School of Life Science and Technology, College of Adult and Online Education, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China.

By field experiment and cultivation simulating, we analyzed the impacts of oilseed rape straw incorporation on root, tiller and grain yield of rice. Results showed that straw incorporation treatments decreased 1-2 in tillers and 1.0-8. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.008DOI Listing

[Effects of Chinese milk vetch intercropped with rape under straw mulching on soil aggregate and organic carbon character].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1235-1242

College of Agronomy and Biotechnology, Southwest University/Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education/Engineering Research Center of South Upland Agriculture, Ministry of Education, Beibei 400716, Chongqing, China.

There are severe soil erosion, shallow soil, reduction of soil organic matter, and poor soil and water conservation in purple soil areas in Southwest China, which become the main limiting factors for the sustainable development of agriculture. A series of buckets and field experiments in the field were employed to explore the soil aggregate and soil organic carbon in response to Chinese milk vetch intercropped with rape under straw mulching, aiming to improve soil aggregate structure and increase organic carbon content. Results showed that intercropped Chinese milk vetch increased soil micro-aggregate content in rape rhizosphere, and reduced soil aggregate mean mass diameter. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.006DOI Listing

[Amelioration effect of humic acid on saline-alkali soil].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1227-1234

College of Resource and Environmental Science, Hebei Agricultural University, Baoding 071001, Hebei, China.

A field experiment was conducted to investigate the effects of three types of humic acid, i.e. oxidized humic acid (OHA), aminated humic acid (AHA) and microbial-humic acid (MHA), on physico-chemical properties of saline-alkali soil and maize growth. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.001DOI Listing

[Effects of the substitution of inorganic nitrogen by organic nitrogen fertilizer on maize grain yield and water and nitrogen use efficiency under plastic film fully mulched ridge-furrow in semi-arid area].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1199-1206

Gansu Provincial Key Laboratory of Arid Land Crop Science, Lanzhou 730070, China.

To improve water and nitrogen (N) fertilizer use efficiency, increase sustainable agricultural production, and explore the appropriate substitution level of inorganic N fertilizer by organic fertilizer in the semi-arid region of the western Loess Plateau, a three-year field experiment was conducted at the Dingxi Agri-ecological Station in 2016-2018. We examined the effects of commercial organic fertilizer substitution on maize grain yield as well as the use efficiency of water and N fertilizer under plastic film fully mulched ridge-furrow in dryland. There were six fertilizer treatments: T, N fertilizer without organic fertilizer; T, substitution 50% inorganic-N with organic-N; T, substitution 37. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.025DOI Listing

[Effects of conservation tillage measures on soil water and NO-N leaching in dryland maize cropland].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1188-1198

State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Department of Water Resources, Yang-ling 712100, Shaanxi, China.

Based on a field experiment on conservation tillage over 15 years in Weibei Highland maize cropland, six conservation tillage patterns, i.e., conventional tillage (CT), no-tillage (NT), no-tillage plus biochar (NB), no-tillage and straw mulching (NS), no-tillage and plastic film mulching (NF), and no-tillage and straw-plastic film mulching (NSF), were investigated for their effects on soil water and nitrate nitrogen(NO-N) leaching, to seek sustainable agricultural cultivation measures suitable for the region. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.009DOI Listing

[Effect of reducing N and regulated fertilization on N loss from wheat-maize rotation system of farmland in Chao soil region of North China Plain].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1179-1187

Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences, Ji'nan 250100, China.

The application of large amounts of nitrogen (N) fertilizer can result in soil N accumulation and consequently N loss. To address these problems in a wheat-maize rotation area of the North China Plain, a two-year field experiment (2016-2017) was conducted to examine the effects of three different N fertilizer strategies on crop yield, N uptake, N loss and soil inorganic N content. The treatments were: controlled-release fertilizer, microbial fertilizer, nitrification inhibitor and farmer's practice (control). Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.019DOI Listing

[Effects of water-fertilizer integration on water use and photosynthetic characteristics of winter wheat].

Ying Yong Sheng Tai Xue Bao 2019 Apr;30(4):1170-1178

Ministry of Agriculture Key Laboratory of Crop Ecophysiology and Farming System, Shandong Agricultural University, Tai'an 271018, Shandong, China.

In two growing seasons of wheat (2016-2018), a field trial with Jimai 22 as test mate-rial was conducted in Shijiawangzi Village, Yanzhou City, Shandong Province. Under three nitrogen levels of 150 (N), 180 (N) and 210 (N) kg·hm, two irrigation-fertilization methods were designed at jointing as border irrigation and broadcasting of fertilizer (W), micro spraying irrigation and water-fertilizer integration (W), to examine the effects of irrigation-fertilization methods on water use, photosynthetic characteristics, and dry matter accumulation and transport of wheat. The results showed that under the same nitrogen level, seven days average soil evaporation of W treatment in filling period was significantly lower than that of W treatment, and that soil water consumption in the 60-160 cm soil layer was significantly higher than that in W treatment. Read More

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http://dx.doi.org/10.13287/j.1001-9332.201904.010DOI Listing