83 results match your criteria npk plots

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

View Article and Full-Text PDF

Effect of Foliar Application of Yeast and Algae on Yield and Quality of Soybean in Newly Soils.

Pak J Biol Sci 2020 Jan;23(12):1621-1628

Background And Objective: Using the foliar application in development agriculture became a new strategy in the production system to decrease the cost of nutrition. This study amid to investigate the effect of yeast and algae on yield and quality of soybean under fertigation in newly soils at Wadi El-Natroun, El-Behaira Governorate, Egypt, during the two seasons 2018 and 2019.

Materials And Methods: The experimental design was a split-plot design in a randomized complete block arrangement with three replications. Read More

View Article and Full-Text PDF
January 2020

Macronutrient Management Effects on Nutrient Accumulation, Partitioning, Remobilization, and Yield of Hybrid Maize Cultivars.

Front Plant Sci 2020 2;11:1307. Epub 2020 Sep 2.

African Plant Nutrition Institute and Mohammed VI Polytechnic University, Benguérir, Morocco.

It is critical to understand nutrient dynamics within different plant parts to correctly fine-tune agronomic advices, and to update breeding programs for increasing nutrient use efficiencies and yields. Farmer's field-based research was conducted to assess the effects of nitrogen (N), phosphorus (P), and potassium (K) levels on dry matter and nutrient accumulation, partitioning, and remobilization dynamics in three popular maize ( L.) hybrids (P3522, P3396, and Rajkumar) over two years in an alluvial soil of West Bengal, India. Read More

View Article and Full-Text PDF
September 2020

Fertilization regimes affecting nickel phytomining efficiency on a serpentine soil in the temperate climate zone.

Int J Phytoremediation 2021 25;23(4):407-414. Epub 2020 Sep 25.

Department of Forest and Soil Sciences, Institute of Soil Research, University of Natural Resources and Life Sciences Vienna, Tulln, Austria.

Phytomining of nickel (Ni) refers to cropping of selected Ni hyperaccumulator plants on Ni-rich serpentine soils. In this study, the effect of different fertilization regimes on the Ni yield of (syn. ) was evaluated within a field experiment on an Austrian serpentine site. Read More

View Article and Full-Text PDF
February 2021

Manure application increased crop yields by promoting nitrogen use efficiency in the soils of 40-year soybean-maize rotation.

Sci Rep 2020 09 10;10(1):14882. Epub 2020 Sep 10.

College of Land and Environment, Shenyang Agricultural University, Shenyang, 110866, China.

It is great of importance to better understand the effects of the long-term fertilization on crop yields, soil properties and nitrogen (N) use efficiency in a rotation cropping cultivation system under the conditions of frequent soil disturbance. Therefore, a long-term field experiment of 40 years under soybean-maize rotation was performed in a brown soil to investigate the effects of inorganic and organic fertilizers on crop yields, soil properties and nitrogen use efficiency. Equal amounts of N-labelled urea with 20. Read More

View Article and Full-Text PDF
September 2020

Effects of cropping system and fertilization regime on soil phosphorous are mediated by rhizosphere-microbial processes in a semi-arid agroecosystem.

J Environ Manage 2020 Oct 8;271:111033. Epub 2020 Jul 8.

Agroscope, Field Crop Systems and Plant Nutrition, Research Division Plant Production Systems, Route de Duillier 50, P.O. Box 1012, CH-1260 Nyon, Switzerland.

In semi-arid regions, soil phosphorus (P) dynamics in cereal-legume intercropping are not yet fully elucidated, particularly in relation to integrated application of fertilizers. To this aim, we investigate the effects of different fertilizers on various P fractions in relation to the rhizosphere-microbial processes in a cowpea/maize intercropping system. Field experiments were conducted during two consecutive years (2016-2017) in a split-plot design by establishing cowpea/maize alone or intercropped onto the main plot, while the sub-plot was treated with four types of fertilization, i. Read More

View Article and Full-Text PDF
October 2020

Elevated atmospheric humidity prolongs active growth period and increases leaf nitrogen resorption efficiency of silver birch.

Oecologia 2020 Jun 17;193(2):449-460. Epub 2020 Jun 17.

Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, 51005, Tartu, Estonia.

Climate models predict increasing amounts of precipitation and relative atmospheric humidity for high latitudes in the Northern Hemisphere. Therefore, tree species must adjust to the new climatic conditions. We studied young silver birches (Betula pendula Roth) in a long-term (2012-2018) free air humidity manipulation experiment, with the aim of clarifying the acclimation mechanisms to elevated relative atmospheric humidity. Read More

View Article and Full-Text PDF

Mixed effects of ecological intensification on natural pest control providers: a short-term study for biotic homogenization in winter wheat fields.

PeerJ 2020 27;8:e8746. Epub 2020 Mar 27.

Institute of Ecology and Botany, Lendület Ecosystem Services Research Group, MTA Centre for Ecological Research, Vácrátót, Hungary.

Agricultural intensification is one of the major drivers of biotic homogenization and has multiple levels ranging from within-field management intensity to landscape-scale simplification. The enhancement of invertebrate assemblages by establishing new, semi-natural habitats, such as set-aside fields can improve biological pest control in adjacent crops, and mitigate the adverse effect of biotic homogenization. In this study we aimed to examine the effects of ecological intensification in winter wheat fields in Hungary. Read More

View Article and Full-Text PDF

Nutrient availability controls the impact of mammalian herbivores on soil carbon and nitrogen pools in grasslands.

Glob Chang Biol 2020 Feb 3. Epub 2020 Feb 3.

Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands.

Grasslands are subject to considerable alteration due to human activities globally, including widespread changes in populations and composition of large mammalian herbivores and elevated supply of nutrients. Grassland soils remain important reservoirs of carbon (C) and nitrogen (N). Herbivores may affect both C and N pools and these changes likely interact with increases in soil nutrient availability. Read More

View Article and Full-Text PDF
February 2020

Improving phosphorus sustainability in intensively managed grasslands: The potential role of arbuscular mycorrhizal fungi.

Sci Total Environ 2020 Mar 28;706:135744. Epub 2019 Nov 28.

Queen's University of Belfast, Belfast BT9 7BL, Northern Ireland, UK.

Long-term nutrient fertilization of grassland soils greatly increases plant yields but also profoundly alters ecosystem phosphorus (P) dynamics. Here, we addressed how long-term P fertilization may affect ecosystem P budget, P use efficiency (PUE) and the abundance of arbuscular mycorrhizal fungi (AMF), which play a key role in the acquisition of P by plants. We found that 47 years of organic P applications increased soil P availability and total soil P stocks up to 1600% and 400%, respectively, compared to unfertilized-control soils. Read More

View Article and Full-Text PDF

Fertilizing Corn With Manure Decreases Caterpillar Performance but Increases Slug Damage.

Environ Entomol 2020 02;49(1):141-150

Department of Entomology, The Pennsylvania State University, University Park, PA.

Many farmers use manure as an alternative to inorganic fertilizer. Previous research has shown that manure can decrease plant susceptibility to herbivores, but the mechanisms remain unclear. To determine how manure affects herbivore performance in a greenhouse setting, we fertilized corn with stacked cow manure or an equivalent amount of NPK fertilizer and measured caterpillar development, plant nutritional content, and defenses. Read More

View Article and Full-Text PDF
February 2020

Investigation of the spatial heterogeneity of soil microbial biomass carbon and nitrogen under long-term fertilizations in fluvo-aquic soil.

PLoS One 2019 4;14(4):e0209635. Epub 2019 Apr 4.

College of Resources and Environmental Sciences, China Agricultural University, Beijing, P. R. China.

Soils are heterogeneous and microbial spatial distribution can clearly indicate the spatial characteristics of the soil carbon and nitrogen cycle. However, it is not clear how long-term fertilization affects the spatial distribution of microbial biomass in fluvo-aquic soil. We collected fluvo-aquic soil samples (topsoil 0-7. Read More

View Article and Full-Text PDF
January 2020

Field Based Assessment of Performance with Inoculation of Rhizobacterial Consortia.

Microorganisms 2019 Mar 21;7(3). Epub 2019 Mar 21.

Department of Basic Sciences, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan, HP 173230, India.

Plant growth promoting rhizobacteria (PGPR) are associated with plant roots and augment plant productivity and immunity by reducing fertilizer application rates and nutrient runoff. Studies were conducted to evaluate bell pepper transplants amended with formulation of consortium of two indigenous PGPR isolates ( and ) in terms of increase in yield and disease resistance under field conditions. Transplants were planted into plots treated by NPK (nitrogen, phosphorus and potassium), fungicides, soil solarization, MeBr fumigation, PGPR and untreated soil. Read More

View Article and Full-Text PDF

Can organic amendments replace chemical fertilizers in nickel agromining cropping systems in Albania?

Int J Phytoremediation 2019 16;21(1):43-51. Epub 2019 Jan 16.

c Laboratoire Sols et Environnement, INRA , Université de Lorraine , Nancy , France.

In Albania, ultramafic outcrops cover 11% of the surface and have the potential to support nickel phytomining. In a large-scale in-situ experiment on an ultramafic Vertisols in Pojskë we are studying the influence of agronomical practices on Ni phytoextraction yield of Odontarrhena chalcidica (syn. Alyssum murale). Read More

View Article and Full-Text PDF
September 2019

Soil nutrient loss through erosion: Impact of different cropping systems and soil amendments in Ghana.

PLoS One 2018 19;13(12):e0208250. Epub 2018 Dec 19.

Department of Crop & Soil Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana.

Soil erosion is a multifactor threat to crop production and the environment. Most studies on soil erosion characterization have not focused on soil nutrient loss associated with erosion. The aim of this study was therefore to quantify the magnitude of nutrient loss through soil erosion under different cropping systems and amendments to inform agronomic practices in sub-Saharan Africa (SSA). Read More

View Article and Full-Text PDF

Impact of organic and inorganic fertilizers on the yield and quality of silage corn intercropped with soybean.

PeerJ 2018 26;6:e5280. Epub 2018 Oct 26.

Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.

Background: Corn silage is an important feed for intense ruminant production, but the growth of corn relies heavily on the use of chemical fertilizers. Sustainable crop production requires careful management of all nutrient sources available on a farm, particularly in corn-based cropping systems.

Methods: Experiments were conducted to determine the appropriate technique of corn-legume intercropping in conjunction with the supplemental use of chemical fertilizers, organic manure, and biofertilizers (BFs). Read More

View Article and Full-Text PDF
October 2018

Determination of heavy metals and their availability to plants in soil fertilized with different waste substances.

Environ Monit Assess 2018 Sep 3;190(10):567. Epub 2018 Sep 3.

Chair of Agricultural Chemistry and Environmental Protection, Faculty of Environmental Management and Agriculture, University of Warmia and Mazury in Olsztyn, 10 719, Olsztyn, Poland.

Field trials were conducted in 2004-2015, in Bałcyny, on haplic Luvisol formed out of light boulder clay. The experiment consisted of the following treatments: control (no fertilization), NPK, manure (FYM), dried pelleted sewage sludge (DPSS), composted sewage sludge (CSS), compost made from municipal sewage sludge and straw (SSCS), compost Dano made from unsorted household waste (CUHW), and compost produced from urban green waste (CUGW). Over a period of 12 years, 30 t DM/ha of each manure and composts were used, that is, 10 t DM/ha in each rotation of a crop rotation sequence. Read More

View Article and Full-Text PDF
September 2018

Understanding variability in the benefits of N-fixation in soybean-maize rotations on smallholder farmers' fields in Malawi.

Agric Ecosyst Environ 2018 Jul;261:241-250

Plant Production Systems, Wageningen University, PO Box 430, 6700 AT Wageningen, The Netherlands.

Soybean production can contribute to the nitrogen economy of smallholder farming systems, but our understanding of factors explaining variability in nitrogen fixation and rotational benefits across farms and regions is limited. Biological nitrogen fixation (BNF) was quantified with the natural abundance method in 150 farmer-managed soybean plots under different varieties and inputs in Dowa, Mchinji and Salima districts of Malawi. Soybean yielded on average 1. Read More

View Article and Full-Text PDF

Influence of composted poultry manure and irrigation regimes on some morpho-physiology parameters of maize under semiarid environments.

Environ Sci Pollut Res Int 2018 Jul 8;25(20):19918-19931. Epub 2018 May 8.

Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, 61100, Pakistan.

Poultry manure (PM), a rich source for crop nutrients, is produced in ample quantities worldwide. It provides necessary nutrient to soil and has a potential to improve plant water holding availability under semiarid environment. The effect of composted poultry manure (CPM) and irrigation regimes on morpho-physiology of selective maize (Zea mays L. Read More

View Article and Full-Text PDF

Assessing the agromining potential of Mediterranean nickel-hyperaccumulating plant species at field-scale in ultramafic soils under humid-temperate climate.

Sci Total Environ 2018 Jul 22;630:275-286. Epub 2018 Feb 22.

Department of Soil Biochemistry, IIAG-CSIC, Campus Universitario Sur, Av. de Vigo s/n., 15702 Santiago de Compostela, Spain.

Nickel (Ni) agromining of ultramafic soils has been proposed as an eco-friendly option for metal recovery, which can also improve the fertility and quality of these low productive soils. The selection of adequate plant species and the analysis of their performance under the different climatic conditions are of interest for optimising the process and evaluating its full viability. A one-year field experiment was carried out to evaluate the viability of the two Ni-hyperaccumulating Mediterranean species, Alyssum murale and Leptoplax emarginata, for agromining purposes in ultramafic soils under a humid-temperate climate. Read More

View Article and Full-Text PDF

Effect of nutrient management on soil organic carbon sequestration, fertility, and productivity under rice-wheat cropping system in semi-reclaimed sodic soils of North India.

Environ Monit Assess 2018 Feb 5;190(3):117. Epub 2018 Feb 5.

ICAR- National Bureau of Soil Survey and Land Use Planning, Amravati Road, Nagpur, Maharashtra, 440033, India.

The ever shrinking agricultural land availability and the swelling demand of food for the growing population fetch our attention towards utilizing partially reclaimed sodic soils for cultivation. In the present investigation, we compared six treatments, like control (T1), existing farmers' practice (T2), balanced inorganic fertilization (T3) and combined application of green gram (Vigna radiate) with inorganic NPK (T4), green manure (Sesbania aculeate) with inorganic NPK (T5), and farmyard manure with inorganic NPK (T6), to study the influence of nutrient management on soil organic carbon sequestration and soil fertility under long-term rice-wheat cropping system along with its productivity in gypsum-amended partially reclaimed sodic soils of semi-arid sub-tropical Indian climate. On an average, combined application of organics along with fertilizer NPK (T4, T5, and T6) decreased soil pH, ESP, and BD by 3. Read More

View Article and Full-Text PDF
February 2018

Soil properties and microbial ecology of a paddy field after repeated applications of domestic and industrial sewage sludges.

Environ Sci Pollut Res Int 2017 Mar 14;24(9):8619-8628. Epub 2017 Feb 14.

Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China.

The effects of repeated application of two types of sewage sludge, domestic and industrial (petrochemical, PSS) sludges, into paddy fields over a 5-year period on the soil properties and microbial ecology were studied and compared with conventional NPK fertilizer application. Soil organic matter and total nitrogen contents were significantly higher in the two sludge treatments than that in fertilized plots after 5 years. Soil concentrations of potentially toxic metals were low after 5 years of both sludge treatments, but the polycyclic aromatic hydrocarbons (PAHs) showed differences between the two sludge types. Read More

View Article and Full-Text PDF

[Effects of residue management and fertilizer application mode on soil organic carbon pools in an oasis cotton region.]

Ying Yong Sheng Tai Xue Bao 2016 Nov;27(11):3529-3538

College of Agriculture, Shihezi University/Key Laboratory of Oasis Eco-Agriculture of Xinjiang Production and Construction Crops, Shihezi 832003, Xinjiang, China.

To reveal the regulation mechanisms of agricultural management practices on soil organic carbon (SOC) pools and provide scientific basis for improving soil productivity and formulating agricultural fixed carbon and reducing discharge measures, we monitored the changes of SOC pools and organic carbon fractions in an oasis cotton field under different residue management and fertilizer application modes. A split-plot experimental design was used with differing residue management including residue incorporation (S) and residue removing (NS) in the main plots and differing fertilizer application modes including no fertilizer (CK), NPK fertilizer (NPK), organic manure (OM) and NPK fertilizer plus organic manure (NPK+OM) in the subplot. The results showed that fertilization and residue incorporation significantly increased SOC pool, soil organic carbon (C), labile carbon (C), microbial biomass carbon (C), water-soluble organic carbon (C), hot-water-soluble organic carbon (C), accumulative amount of soil organic carbon mineralization (C) and carbon management index (CMI). Read More

View Article and Full-Text PDF
November 2016

[Effects of cotton stalk biochar on microbial community structure and function of continuous cropping cotton rhizosphere soil in Xinjiang, China].

Ying Yong Sheng Tai Xue Bao 2016 Jan;27(1):173-81

In this study, field trials were conducted to examine the effects of cotton stalk biochar on microbial population, function and structural diversity of microorganisms in rhizosphere soil of continuous cotton cropping field in Xinjiang by plate count, Biolog and DGGE methods. The experiment was a factorial design with four treatments: 1) normal fertilization with cotton stalk removed (NPK); 2) normal fertilization with cotton stalk powdered and returned to field (NPKS); 3) normal fertilization plus cotton stalk biochar at 22.50 t · hm⁻² (NPKB₁); and 4) normal fertilization plus cotton stalk biochar at 45. Read More

View Article and Full-Text PDF
January 2016

Biochar Improves Soil Aggregate Stability and Water Availability in a Mollisol after Three Years of Field Application.

PLoS One 2016 18;11(5):e0154091. Epub 2016 May 18.

Institute of Soil Fertilizer and Environmental Resources, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, People`s Republic of China.

A field experiment was carried out to evaluate the effect of organic amendments on soil organic carbon, total nitrogen, bulk density, aggregate stability, field capacity and plant available water in a representative Chinese Mollisol. Four treatments were as follows: no fertilization (CK), application of inorganic fertilizer (NPK), combined application of inorganic fertilizer with maize straw (NPK+S) and addition of biochar with inorganic fertilizer (NPK+B). Our results showed that after three consecutive years of application, the values of soil bulk density were significantly lower in both organic amendment-treated plots than in unamended (CK and NPK) plots. Read More

View Article and Full-Text PDF

Carbon and Nitrogen Mineralization in Relation to Soil Particle-Size Fractions after 32 Years of Chemical and Manure Application in a Continuous Maize Cropping System.

PLoS One 2016 31;11(3):e0152521. Epub 2016 Mar 31.

Soil Biology and Molecular Ecology Group, School of Geography and Environmental Sciences, Institute of Agriculture, University of Western Australia, Crawley, WA 6009, Australia.

Long-term manure application is recognized as an efficient management practice to enhance soil organic carbon (SOC) accumulation and nitrogen (N) mineralization capacity. A field study was established in 1979 to understand the impact of long-term manure and/or chemical fertilizer application on soil fertility in a continuous maize cropping system. Soil samples were collected from field plots in 2012 from 9 fertilization treatments (M0CK, M0N, M0NPK, M30CK, M30N, M30NPK, M60CK, M60N, and M60NPK) where M0, M30, and M60 refer to manure applied at rates of 0, 30, and 60 t ha(-1) yr(-1), respectively; CK indicates no fertilizer; N and NPK refer to chemical fertilizer in the forms of either N or N plus phosphorus (P) and potassium (K). Read More

View Article and Full-Text PDF

[Effect of Long-term Fertilizer Application on the Stability of Organic Carbon in Particle Size Fractions of a Paddy Soil in Zhejiang Province, China].

Huan Jing Ke Xue 2015 May;36(5):1827-35

Effects of chemical fertilizers and organic manure on the soil organic carbon (SOC) content in particle size fractions of paddy soil were investigated in a 17-year long-term fertilization field experiment in Zhejiang Province, China. The inherent chemical composition of silt- and clay-associated SOC was evaluated with solid-state 13C-NMR spectroscopy. Compared to CK (no fertilizer treatment), NPKRS (NPK fertilizers plus rice straw) , NPKOM (NPK fertilizers plus organic manure) , NPK (NPK fertilizers) and OM (organic manure alone) treatments significantly (P <0. Read More

View Article and Full-Text PDF

Response of autochthonous microbiota of diesel polluted soils to land-farming treatments.

Environ Res 2015 Feb 6;137:49-58. Epub 2014 Dec 6.

Department of Microbiology, University of Granada, Spain; Institute of Water Research, University of Granada, Spain. Electronic address:

This study investigated the response of autochthonous microorganisms of diesel polluted soils to land-farming treatments. Inorganic NPK (nitrogen, phosphorous, and potassium) fertilizer and Ivey surfactant were applied alone or in combination as biostimulating agents. The study was carried out in experimental separated land-farming plots performed with two soils: a sandy clay soil with low biological activity and a sandy clay soil with higher biological activity, contaminated with two concentrations of diesel: 10,000 and 20,000mgkg(-1). Read More

View Article and Full-Text PDF
February 2015

Influence of 20-year organic and inorganic fertilization on organic carbon accumulation and microbial community structure of aggregates in an intensively cultivated sandy loam soil.

PLoS One 2014 25;9(3):e92733. Epub 2014 Mar 25.

State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China.

To evaluate the long-term effect of compost (CM) and inorganic fertilizer (NPK) application on microbial community structure and organic carbon (OC) accumulation at aggregate scale, soils from plots amended with CM, NPK and no fertilizer (control) for 20 years (1989-2009) were collected. Soil was separated into large macroaggregate (>2,000 μm), small macroaggregate (250-2,000 μm), microaggregate (53-250 μm), silt (2-53 μm) and clay fraction (<2 μm) by wet-sieving, and their OC concentration and phospholipid fatty acids (PLFA) were measured. The 20-year application of compost significantly (P<0. Read More

View Article and Full-Text PDF
December 2014