1,020 results match your criteria npk

Differential responses of arbuscular mycorrhizal fungal communities to long-term fertilization in the wheat rhizosphere and root endosphere.

Appl Environ Microbiol 2021 Jun 23:AEM0034921. Epub 2021 Jun 23.

State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, China.

Arbuscular mycorrhizal fungi (AMF) provide essential nutrients to crops and are critically impacted by fertilization in agricultural ecosystems. Understanding shifts in AMF communities in and around crop roots under different fertilization regimes can provide important lessons for improving agricultural production and sustainability. Here, we compared the responses of AMF communities in the rhizosphere (RS) and root endosphere (ES) of wheat () to different fertilization treatments: Non-fertilization (Control), mineral fertilization only (NPK), mineral fertilization plus wheat straw (NPKS), and mineral fertilization plus cow manure (NPKM). Read More

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Influence of soil quality factors on capsaicin biosynthesis, pungency, yield, and produce quality of chili: An insight on Csy1, Pun1, and Pun1 signaling responses.

Plant Physiol Biochem 2021 Jun 16;166:427-436. Epub 2021 Jun 16.

Soil and Agro Bio-engineering Lab, Department of Environmental Science, Tezpur University, Tezpur, 784 028, India. Electronic address:

Hotness or pungency is the major trait of genetically diverse and economically valuable chili (Capsicum sp.) cultivars. However, little is known about the influence of soil characteristics on genetic regulation of pungency vis-à-vis capsaicin formation in endemic chilies. Read More

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Bioactivity of Humic Acids Extracted From Shale Ore: Molecular Characterization and Structure-Activity Relationship With Tomato Plant Yield Under Nutritional Stress.

Front Plant Sci 2021 26;12:660224. Epub 2021 May 26.

Humic R&D Lab, Bio Huma Netics, Inc., Gilbert, AZ, United States.

The increasing demands for biostimulants in the agricultural market over the last years have posed the problem of regulating this product category by requiring the industry to make available the information about efficacy and safety, including the explanation of mode of action and the definition of bioactive constituents. In the present study, we tested the biostimulant proprieties of a sedimentary shale ore-extracted humic acid (HA) on Micro Tom tomato plants under increasing nutritional stress and investigated the correlation with the chemical features of HA by means of ultra-high resolution FT-ICR MS, FT-ATR, and C-NMR. Humic acid application proved effective in alleviating the nutritional stress by improving nutrient use efficiency, with results comparable to the control treatment supplied with higher NPK nutrition. Read More

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Yellow phosphorus and Potash for SO and NO removal.

Environ Technol 2021 Jun 20:1-9. Epub 2021 Jun 20.

College of Environmental Science and Engineering, Donghua University, Shanghai, People's Republic of China.

Flue gases emitted from the industries and other emission sources are considered the main atmospheric issues. The main Flue gases emitted are sulfur oxides SO and Nitrogen oxides NO. The study was about methods of removing SO and NO from emitted gases and the possibility of deriving useful byproducts. Read More

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Conservation tillage and nutrient management practices in summer rice ( L.) favoured root growth and phenotypic plasticity of succeeding winter pea (L.) under eastern Himalayas, India.

Heliyon 2021 May 25;7(5):e07078. Epub 2021 May 25.

ICAR Research Complex for NEH Region, Umiam, Meghalaya 793103, India.

Low soil moisture during dry season, poor soil properties and lack of adequate crop varieties are the major constraints for sustainable intensification of eastern Himalayas in changing climate. Suitable varieties, tillage alteration and integrated nutrient management with emphasis on locally available crop residues/plant biomass may help addressing these issues. The role of minimum tillage (MT) and no-till (NT), and organic matter substitution on conferring of favourable root environment, improvement in morpho-physiology and subsequent productivity of the crops are not objectively studied in Himalayan ecosystems. Read More

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Physiological insights into sulfate and selenium interaction to improve drought tolerance in mung bean.

Physiol Mol Biol Plants 2021 May 4;27(5):1073-1087. Epub 2021 May 4.

Department of Agronomy, MNS University of Agriculture, Multan, Pakistan.

The present study involved two pot experiments to investigate the response of mung bean to the individual or combined SO and selenate application under drought stress. A marked increment in biomass and NPK accumulation was recorded in mung bean seedlings fertilized with various SO sources, except for CuSO. Compared to other SO fertilizers, ZnSO application resulted in the highest increase in growth attributes and shoot nutrient content. Read More

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An improved microelectrode method reveals significant emission of nitrous oxide from the rhizosphere of a long-term fertilized soil in the North China Plain.

Sci Total Environ 2021 Aug 18;783:147011. Epub 2021 Apr 18.

Key Laboratory of Agricultural Water Resources, Hebei Key Laboratory of Soil Ecology, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 286 Huaizhong Road, Shijiazhuang 050021, China.

Microsensors are able to accurately quantify nitrous oxide (NO) emissions in microenvironments at high spatio-temporal resolution; yet, limited studies have been conducted on agricultural soils due to the inability to obtain electrical signal under conditions of low soil moisture. This study improved the calibration of a microelectrode for measuring NO emissions from agricultural soil. The microelectrode was applied to evaluate the effect of long-term fertilization with mineral fertilizer (NPK), complemented with pig manure (MNPK), straw (SNPK), or without fertilizer (CK), all with and without urea addition, on NO emissions from the soil, with explicit separation of the rhizosphere and the bulk soil compartments. Read More

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A MYC and RAS co-activation signature in localized prostate cancer drives bone metastasis and castration resistance.

Nat Cancer 2020 Nov 19;1(11):1082-1096. Epub 2020 Oct 19.

Department of Molecular Pharmacology and Therapeutics, Columbia University Irving Medical Center, New York, NY, USA.

Understanding the intricacies of lethal prostate cancer poses specific challenges due to difficulties in accurate modeling of metastasis in vivo. Here we show that mice (for -) develop prostate cancer with a high penetrance of metastasis to bone, thereby enabling detection and tracking of bone metastasis in vivo and ex vivo. Transcriptomic and whole-exome analyses of bone metastasis from these mice revealed distinct molecular profiles conserved between human and mouse and specific patterns of subclonal branching from the primary tumor. Read More

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November 2020

Effect of Low Zeolite Doses on Plants and Soil Physicochemical Properties.

Materials (Basel) 2021 May 17;14(10). Epub 2021 May 17.

Institute of Agrophysics of Polish Academy of Sciences, Doswiadczalna 4 Str., 20-290 Lublin, Poland.

Thousands of tons of zeolitic materials are used yearly as soil conditioners and components of slow-release fertilizers. A positive influence of application of zeolites on plant growth has been frequently observed. Because zeolites have extremely large cation exchange capacity, surface area, porosity and water holding capacity, a paradigm has aroused that increasing plant growth is caused by a long-lasting improvement of soil physicochemical properties by zeolites. Read More

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Impact of Commercial Seaweed Liquid Extract (TAM) Biostimulant and Its Bioactive Molecules on Growth and Antioxidant Activities of Hot Pepper ().

Plants (Basel) 2021 May 21;10(6). Epub 2021 May 21.

Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt.

Bioactive molecules derived from seaweed extracts are revolutionary bio-stimulants used to enhance plant growth and increase yield production. This study evaluated the effectiveness of a commercially available seaweed liquid extract, namely, True-Algae-Max (TAM), as a plant growth stimulant on nutritional, and antioxidant activity of . Three concentrations of TAM (0. Read More

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Combined bio-chemical fertilizers ameliorate agro-biochemical attributes of black cumin (Nigella sativa L.).

Sci Rep 2021 May 31;11(1):11399. Epub 2021 May 31.

Department of Microbiology, PSGVP Mandal's Arts, Science, and Commerce College, Shahada, Maharashtra, 425409, India.

Nigella sativa L. is a medicinal plant with extensive, nutritional, pharmaceutical, and health applications. Nowadays, reducing the application of chemical fertilizers (synthetic fertilizers) is one of the main goals of sustainable agriculture to allow the production of safe crops. Read More

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Natural occurrence of Azospirillum brasilense in petunia with capacity to improve plant growth and flowering.

J Basic Microbiol 2021 May 31. Epub 2021 May 31.

Facultad de Agronomía y Zootecnia, Universidad Nacional de Tucumán, San Miguel de Tucumán, Argentina.

To evaluate the natural occurrence of the plant growth-promoting bacterium Azospirillum brasilense and petunia plants, local strains were isolated and characterized by biochemical and molecular methods. Three strains were assessed in greenhouse conditions using Petunia × hybrida Ultra™. Treatments: Plants without bacterial inoculation or chemical fertilization; fertilized with NPK and KNO ; and independently inoculated with the strains 2A1, 2A2, and 2E1 by submerging their roots in a bacterial suspension (~10  CFU·ml ). Read More

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Long-term partial replacement of mineral fertilizer with in situ crop residues ensures continued rice yields and soil fertility: A case study of a 27-year field experiment in subtropical China.

Sci Total Environ 2021 Sep 5;787:147523. Epub 2021 May 5.

Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Hunan 410125, China.

High yields and environment-related issues because of over-fertilization in rice (Oryza sativa L.) production is a major concern in China. Partial replacement of mineral fertilizer (MF) with organic matter is considered a win-win approach for resource-saving and environmentally friendly rice production. Read More

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September 2021

Comparison of bacterial and archaeal communities in two fertilizer doses and soil compartments under continuous cultivation system of garlic.

PLoS One 2021 14;16(5):e0250571. Epub 2021 May 14.

School of Life Sciences, Qufu Normal University, Jining, PR China.

Soil microbial communities are affected by interactions between agricultural management (e.g., fertilizer) and soil compartment, but few studies have considered combinations of these factors. Read More

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Root Biomass Distribution of and Afforestation Stands Is Affected by Watering Regimes and Fertilization in the Mongolian Semi-arid Steppe.

Front Plant Sci 2021 23;12:638828. Epub 2021 Apr 23.

Laboratory of Environmental and Applied Botany, Department of Biotechnology and Life Science, University of Insubria, Varese, Italy.

Desertification of the semi-arid steppe of Mongolia is advancing very rapidly, motivating afforestation efforts. The "Green Belt" joint project (Government of Mongolia and Republic of Korea), which aims to mitigate soil degradation and develop agroforestry activities through the planting of a forest shelterbelt, is one such response. In these plantations, tree growth has been supported by different watering regimes (no watering, 2, 4, and 8 L h) and by two types of soil fertilization (NPK and Compost). Read More

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Effect of irrigation, fertiliser type and variety on grain yield and nutritional quality of spelt wheat (Triticum spelta) grown under semi-arid conditions.

Food Chem 2021 Oct 20;358:129826. Epub 2021 Apr 20.

Nafferton Ecological Farming Group, School of Agriculture, Food and Rural Development, Newcastle University, NE1 7RU, Newcastle upon Tyne, Tyne and Wear, UK; Geokomi plc, P.O. Box 21, Sivas Festos, GR70200 Crete, Greece. Electronic address:

Previous studies reported higher antioxidant and mineral micronutrient concentrations in organic compared to conventional wheat flour, but the reasons are poorly understood. Here we report results from a long-term, factorial field experiment designed to assess effects of variety choice, supplementary irrigation and contrasting fertilization regimes used in organic and conventional production on the nutritional quality and yield of spelt wheat grown in a semi-arid environment. Long-straw (Oberkulmer, Rubiota, ZOR) varieties had 10-40% higher grain Cu, Fe, Mn and Zn concentrations, while the modern, short straw variety Filderstolz had 15-38% higher grain antioxidant activity. Read More

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October 2021

Impact of Water Regimes and Amendments on Inorganic Arsenic Exposure to Rice.

Int J Environ Res Public Health 2021 04 27;18(9). Epub 2021 Apr 27.

Agricultural and Ecological Research Unit, Indian Statistical Institute, Kolkata 700108, India.

Rice-based diet faces an important public health concern due to arsenic (As) accumulation in rice grain, which is toxic to humans. Rice crops are prone to assimilate As due to continuously flooded cultivation. In this study, the objective was to determine how water regimes (flooded and aerobic) in rice cultivation impact total As and inorganic As speciation in rice on the basis of a field-scale trial in the post-monsoon season. Read More

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Sustainable and Clean Utilization of Yellow Phosphorus Slag (YPS): Activation and Preparation of Granular Rice Fertilizer.

Materials (Basel) 2021 Apr 20;14(8). Epub 2021 Apr 20.

School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China.

Yellow phosphorus slag (YPS) is a typical industrial solid waste, while it contains abundant silicon micronutrient required for the growth of rice. The key scientific problem to use the YPS as rice fertilizer is how to activate the slag efficiently during the phosphorite reduction smelting process. In this work, an alkaline rice fertilizer from the activated YPS was successfully prepared to use the micronutrients. Read More

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Optimization of Bokashi-Composting Process Using Effective Microorganisms-1 in Smart Composting Bin.

Sensors (Basel) 2021 Apr 18;21(8). Epub 2021 Apr 18.

Faculty of Electrical Engineering, Kampus Pasir Gudang, Universiti Teknologi Mara Cawangan Johor, Shah Alam 40450, Selangor, Malaysia.

Malaysians generate 15,000 tons of food waste per day and dispose of it in the landfill, contributing to greenhouse gas emissions. As a solution for the stated problem, this research aims to produce an excellent quality bokashi compost from household organic waste using a smart composting bin. The bokashi composting method is conducted, whereby banana peels are composted with three types of bokashi brans prepared using 12, 22, and 32 mL of EM-1 mother cultured. Read More

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Conversion of Spent Coffee and Donuts by Black Soldier Fly () Larvae into Potential Resources for Animal and Plant Farming.

Insects 2021 Apr 8;12(4). Epub 2021 Apr 8.

Center of Excellence in Aquaculture and Fisheries, University of Arkansas at Pine Bluff, 1200 North University Drive, Pine Bluff, AR 71601, USA.

Nutritionally unbalanced organic waste can be converted into potential resources for animal and plant farming by culturing black soldier fly () larvae (BSFL) and prepupae (BSFP). BSFL and BSFP are rich sources of protein and lipids, while the leftover excrement called "frass" can be used as an organic fertilizer. Using readily available resources, BSFL were cultured on spent coffee, donut dough or an equal blend for 35 days. Read More

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Comparative role of animal manure and vegetable waste induced compost for polluted soil restoration and maize growth.

Saudi J Biol Sci 2021 Apr 10;28(4):2534-2539. Epub 2021 Feb 10.

School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510255, China.

Soil amendment with two types of composts: animal manure (AC) and vegetable waste (VC) induced composts have potential to alleviate Cd toxicity to maize in contaminated soil. Therefore, Cd mobility in waste water irrigated soil can be addressed through eco-friendly and cost effective organic soil amendments AC and VC that eventually reduces its translocation from polluted soil to maize plant tissues. The comparative effectiveness of AC and VC at 3% rate were evaluated on Cd solubility, its accumulation in maize tissues, translocation from root to shoot, chlorophyll contents, plant biomass, yield and soil properties (pH, NPK, OM). Read More

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Efficiency of different types of biochars to mitigate Cd stress and growth of sunflower (; L.) in wastewater irrigated agricultural soil.

Saudi J Biol Sci 2021 Apr 2;28(4):2453-2459. Epub 2021 Feb 2.

School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510255, PR China.

Cadmium contamination in croplands is recognized one of the major threat, seriously affecting soil health and sustainable agriculture around the globe. Cd mobility in wastewater irrigated soils can be curtailed through eco-friendly and cost effective organic soil amendments (biochars) that eventually minimizes its translocation from soil to plant. This study explored the possible effects of various types of plants straw biochar as soil amendments on cadmium (Cd) phytoavailability in wastewater degraded soil and its subsequent accumulation in sunflower tissues. Read More

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Cultivable and metagenomic approach to study the combined impact of nanogypsum and Pseudomonas taiwanensis on maize plant health and its rhizospheric microbiome.

PLoS One 2021 26;16(4):e0250574. Epub 2021 Apr 26.

Department of Microbiology, College of Basic Sciences and Humanities, G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India.

In the present study we examined the effect of nanogypsum and Pseudomonas taiwanensis strain BCRC 17751on plant and soil health using conventional and metagenomics approaches. Soil physicochemical properties and agronomical parameters of maize plants were reported to be better when applied with nanogypsum and bacterial inoculum together. When compared to control a significant increase in total bacterial counts, nitrogen, phosphorus, potassium (NPK) solubilizing bacterial population and soil enzyme activities (fluorescein diacetate, alkaline phosphatase, dehydrogenase, β-glucosidase, arylesterase and amylase) was reported in treatments. Read More

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Changes in Soil Microbial Activity, Bacterial Community Composition and Function in a Long-Term Continuous Soybean Cropping System After Corn Insertion and Fertilization.

Front Microbiol 2021 7;12:638326. Epub 2021 Apr 7.

Jilin Academy of Agricultural Sciences, Changchun, China.

Corn-soybean rotation and fertilization are common practices improving soil fertility and crop yield. Their effects on bacterial community have been extensively studied, yet, few comprehensive studies about the microbial activity, bacterial community and functional groups in a long-term continuous soybean cropping system after corn insertion and fertilization. The effects of corn insertions (Sm: no corn insertion, CS: 3 cycles of corn-soybean rotations and CCS: 2 cycles of corn-corn-soybean rotations) with two fertilization regimes (No fertilization and NPK) on bacterial community and microbial activity were investigated in a long-term field experiment. Read More

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Nutrient recovery from the digestate obtained by rumen fluid enhanced anaerobic co-digestion of sewage sludge and cattail: Precipitation by MgCl and ion exchange using zeolite.

J Environ Manage 2021 Jul 21;290:112593. Epub 2021 Apr 21.

University of Maribor, Faculty of Chemistry and Chemical Engineering, Smetanova ul. 17, 2000, Maribor, Slovenia.

The aim of this study was to recover nutrients (NPK and other) from the liquid fraction of digestate obtained by rumen fluid enhanced anaerobic co-digestion of sewage sludge and cattail (Typha latifolia grass). Firstly, anaerobic digestion (AD) studies were performed to examine the biogas potential of selected substrates. The liquid fraction of digestate was then used in nutrient recovery experiments. Read More

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[Effects of Long-Term Application of Chemical Fertilizers and Organic Fertilizers on Heavy Metals and Their Availability in Reddish Paddy Soil].

Huan Jing Ke Xue 2021 May;42(5):2469-2479

Institute of Soil Fertilizer and Resource Environment, Jiangxi Academy of Agricultural Sciences, National Engineering and Technology Research Center for Red Soil Improvement, Yichun Scientific Observing and Experimental Station of Agro-environment, Nanchang 330200, China.

To investigate the effects of long-term fertilization on the accumulation and availability of heavy metals in reddish paddy soil and to analyze the major influencing factors, soil samples were collected after the later rice was harvested in 2018 from a long-term fertilization field experiment that began in 1984. Six treatments were selected, namely CK (control without fertilization), PK (P and K fertilizer), and NPK (N, P, and K fertilizer), and different proportions of organic fertilizer plus chemical fertilizer (M1NPK: 30%M+70%NPK; M2NPK: 50%M+50%NPK; and M3NPK: 70%M+30%NPK), soil chemical properties, total and available heavy metal contents, and the relationships between the available forms of heavy metals and soil chemical parameters and total heavy metals (THM) were analyzed. The results showed that ① long-term fertilization changed the soil chemical properties; compared with those of CK, PK significantly increased the contents of soil available phosphorus (AP) and available potassium (AK), NPK significantly increased the soil organic matter (SOM), cation exchange capacity (CEC), AP, and AK, and the organic fertilizer treatments significantly increased the contents of SOM, CEC, AP, AK, and nitrate (NO-N). Read More

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Substituting chemical P fertilizer with organic manure: effects on double-rice yield, phosphorus use efficiency and balance in subtropical China.

Sci Rep 2021 Apr 21;11(1):8629. Epub 2021 Apr 21.

Soil and Fertilizer Institute of Hunan Province, Hunan Academy of Agricultural Sciences, 730 Yuanda No.2 Rd, Furong District, Changsha, 410125, China.

Organic manure is an ideal alternative fertilizer to provide phosphorus (P) but is not fully recycled in subtropical China. In order to identify if it can replace chemical P fertilizer, a 35-year field trail in a paddy soil under double-rice cropping system was conducted to assess the effects of substituting chemical P fertilizer with pig manure (NKM) on rice yield, phosphorus use efficiency (PUE) and P balance. The N, P and K input under NKM was 1. Read More

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60 years of fertilization and liming impacts on soil organic carbon stabilization in a sub-tropical Alfisol.

Environ Sci Pollut Res Int 2021 Apr 21. Epub 2021 Apr 21.

Environmental Sciences and Biomedical Metrology Division, CSIR-National Physical Laboratory, New Delhi, 110012, India.

Limited information is available on the C stabilization mechanism of tropical soils under different management practices including long-term organic manuring, mineral fertilization alone, or in combination with lime. Hence, to understand the effect of continuous application (for 60 years) of organic manure, fertilizer, and lime alone or in combination on an acidic Alfisol, stabilization of soil organic carbon (SOC) was evaluated under maize (Zea mays L.) wheat (Triticum aestivum L. Read More

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Slow-release nitrogen fertilizers enhance growth, yield, NUE in wheat crop and reduce nitrogen losses under an arid environment.

Environ Sci Pollut Res Int 2021 Apr 9. Epub 2021 Apr 9.

Department of Agronomy, MNS University of Agriculture Multan, Multan, Punjab, Pakistan.

Higher demands of food led to higher nitrogen application to promote cropping intensification and produce more which may have negative effects on the environment and lead to pollution. While sustainable wheat production is under threat due to low soil fertility and organic matter due to nutrient degradation at high temperatures in the region. The current research explores the effects of different types of coated urea fertilizers and their rates on wheat crop under arid climatic conditions of Pakistan. Read More

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