Fertilization of high-yield corn with poultry litter based on nitrogen doses

Abstract: The objective of this work was to recommend nitrogen doses from poultry litter-based organic fertilizers in powder and pellet forms, compared with mineral fertilizer, in a high-yield corn crop under no-tillage. The treatments consisted of a 3×3+1 factorial arrangement, with: three fertilizers, two organic derived from poultry litter in powder (OPo) and pelletized (OPe) forms and one mineral fertilizer (M); three N doses of 65, 100, and 135% of the recommended N requirement for corn; and an unfertilized control. After five corn crops farmed under no-tillage in a Rhodic Kandiudox, the recommended doses for fertilization with poultry litter organic fertilizers, with an expected yield equal to or greater than 8,000 kg ha-1, could be achieved from doses of 100 kg ha-1 N in OPe and M and of 121 kg ha-1 N in OPo. Increasing doses of the OPe, OPo, and M fertilizers raise the contents of organic carbon, N, and available P in the surface soil layer (0.0-0.1 m) and of exchangeable K up to a depth of 0.2 m, allowing to obtain N, P, and K contents in the plant tissue within the sufficiency range of the corn crop.

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Forms and accumulation of copper and zinc in a sandy typic hapludalf soil after long-term application of pig slurry and deep litter

Revista Brasileira de Ciência do Solo ◽

10.1590/s0100-06832013000300028 ◽

2013 ◽

Vol 37 (3) ◽

pp. 812-824 ◽

Cited By ~ 19

Author(s):

Tadeu Luis Tiecher ◽

Carlos Alberto Ceretta ◽

Jucinei José Comin ◽

Eduardo Girotto ◽

Alcione Miotto ◽

...

Keyword(s):

Soil Profile ◽

Surface Soil ◽

Soil Layer ◽

Soil Samples ◽

Pig Slurry ◽

Soil Layers ◽

Surface Soil Layer ◽

N Requirement ◽

Cu And Zn

Successive applications of pig slurry and pig deep litter may lead to an accumulation of copper (Cu) and zinc (Zn) fractions in the soil profile. The objective of this study was to evaluate the Cu and Zn forms and accumulation in a Sandy Typic Hapludalf soil after long-term application of pig slurry and deep litter. In March 2010, eight years after initiating an experiment in Braço do Norte, Santa Catarina (SC), Brazil, on a Sandy Typic Hapludalf soil, soil samples were collected from the 0-2.5, 2.5-5.0, 5-10 and 10-15 cm layers in treatments consisting of no manure application (control) and with applications of pig slurry and deep litter at two levels: the single and double rate of N requirement for maize and black oat succession. The soil was dried, ground in an agate mortar and analyzed for Cu and Zn contents by 0.01 mol L-1 EDTA and chemically fractionated to determine Cu and Zn. The applications of Pig deep litter and slurry at doses equivalent to 90 kg ha-1 N increased the contents of available Cu and Zn in the surface soil layer, if the double of this dose was applied in pig deep litter or double this dose in pig slurry, Cu and Zn migrated to a depth of 15 cm. Copper is accumulated mainly in the organic and residual fractions, and zinc preferentially in the fraction linked to clay minerals, especially in the surface soil layers.

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Outflows of Organic Halide Precursors from Forest Regions

Water Science & Technology ◽

10.2166/wst.1989.0192 ◽

1989 ◽

Vol 21 (12) ◽

pp. 1877-1880 ◽

Cited By ~ 1

Author(s):

S. Saito ◽

K. Hattori ◽

T. Okumura

Keyword(s):

Water Quality ◽

River Basin ◽

Surface Soil ◽

Soil Layer ◽

Water Quality Monitoring ◽

Quality Monitoring ◽

Deep Soil ◽

Organic Halide ◽

Forest Regions ◽

Surface Soil Layer

Outflows of organic halide precursors (OXPs) from forest regions were studied in relation to water quality monitoring in the Yodo River basin. Firstly, the contribution of outflows from forest regions relative to the total was roughly estimated. Then equations for flows of these substances were formulated, divided into four different subflow categories: precipitation; throughfall; surface soil layer; and, deep soil layer. Finally, annual outflow loads were calculated for a test forest area.

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Biochar induced improvement in root system architecture enhances nutrient assimilation by cotton plant seedlings

BMC Plant Biology ◽

10.1186/s12870-021-03026-1 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Lei Feng ◽

Wanli Xu ◽

Guangmu Tang ◽

Meiying Gu ◽

Zengchao Geng

Keyword(s):

Root System ◽

System Architecture ◽

Fine Roots ◽

Nitrogen Assimilation ◽

Surface Soil ◽

Soil Layer ◽

Root System Architecture ◽

Seedling Stage ◽

Agronomic Efficiency ◽

Surface Soil Layer

Abstract Background Raising nitrogen use efficiency of crops by improving root system architecture is highly essential not only to reduce costs of agricultural production but also to mitigate climate change. The physiological mechanisms of how biochar affects nitrogen assimilation by crop seedlings have not been well elucidated. Results Here, we report changes in root system architecture, activities of the key enzymes involved in nitrogen assimilation, and cytokinin (CTK) at the seedling stage of cotton with reduced urea usage and biochar application at different soil layers (0–10 cm and 10–20 cm). Active root absorption area, fresh weight, and nitrogen agronomic efficiency increased significantly when urea usage was reduced by 25% and biochar was applied in the surface soil layer. Glutamine oxoglutarate amino transferase (GOGAT) activity was closely related to the application depth of urea/biochar, and it increased when urea/biochar was applied in the 0–10 cm layer. Glutamic-pyruvic transaminase activity (GPT) increased significantly as well. Nitrate reductase (NR) activity was stimulated by CTK in the very fine roots but inhibited in the fine roots. In addition, AMT1;1, gdh3, and gdh2 were significantly up-regulated in the very fine roots when urea usage was reduced by 25% and biochar was applied. Conclusion Nitrogen assimilation efficiency was significantly affected when urea usage was reduced by 25% and biochar was applied in the surface soil layer at the seedling stage of cotton. The co-expression of gdh3 and gdh2 in the fine roots increased nitrogen agronomic efficiency. The synergistic expression of the ammonium transporter gene and gdh3 suggests that biochar may be beneficial to amino acid metabolism.

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Centrifuge model experiments and granular element simulation on deformation of surface soil layer caused by the large displacement of reverse fault

Computer Methods and Recent Advances in Geomechanics ◽

10.1201/b17435-58 ◽

2014 ◽

pp. 353-358

Author(s):

K Sassa ◽

K Kaneko ◽

S Nozoe ◽

A Yamamoto ◽

N Oyama ◽

...

Keyword(s):

Surface Soil ◽

Soil Layer ◽

Large Displacement ◽

Reverse Fault ◽

Model Experiments ◽

Centrifuge Model ◽

Element Simulation ◽

Surface Soil Layer

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Prediction of the chrome distribution in subarctic Noyabrsk using co-kriging, generalized regression neural network, multilayer perceptron, and hybrid technics

Геоэкология Инженерная геология Гидрогеология Геокриология ◽

10.31857/s0869-78092019277-86 ◽

2019 ◽

pp. 77-86

Author(s):

A. G. Buevich ◽

I. E. Subbotina ◽

A. V. Shichkin ◽

A. P. Sergeev ◽

E. M. Baglaeva

Keyword(s):

Neural Network ◽

Neural Networks ◽

Multilayer Perceptron ◽

Surface Soil ◽

Soil Layer ◽

Generalized Regression Neural Network ◽

Residual Kriging ◽

Surface Soil Layer ◽

Artificial Neural ◽

Generalized Regression

Combination of geostatistical interpolation (kriging) and machine learning (artificial neural networks, ANN) methods leads to an increase in the accuracy of forecasting. The paper considers the application of residual kriging of an artificial neural network to predicting the spatial contamination of the surface soil layer with chromium (Cr). We reviewed and compared two neural networks: the generalized regression neural network (GRNN) and multilayer perceptron (MLP), as well as the combined method: multilayer perceptron residual kriging (MLPRK). The study is based on the results of the screening of the surface soil layer in the subarctic Noyabrsk, Russia. The models are developed based on computer modeling with minimization of the RMSE. The MLPRK model showed the best prognostic accuracy.

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Estimating Soil Heat Flux at Surface Soil Layer

DAAAM Proceedings - Proceedings of the 22nd International DAAAM Symposium 2011 ◽

10.2507/22nd.daaam.proceedings.215 ◽

2011 ◽

pp. 0433-0434

Author(s):

Milan Hofreiter

Keyword(s):

Heat Flux ◽

Surface Soil ◽

Soil Layer ◽

Soil Heat Flux ◽

Surface Soil Layer

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The statistical structure of the field of surface soil layer moisture from ground-based and satellite observations

Russian Meteorology and Hydrology ◽

10.3103/s1068373917060061 ◽

2017 ◽

Vol 42 (6) ◽

pp. 403-414 ◽

Cited By ~ 1

Author(s):

Ph. L. Bykov ◽

E. V. Vasilenko ◽

V. A. Gordin ◽

L. L. Tarasova

Keyword(s):

Surface Soil ◽

Soil Layer ◽

Satellite Observations ◽

Statistical Structure ◽

Surface Soil Layer

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Macronutrients Use Efficiency and Phosphorus Exportation by Melon Plants in Response to Fertilization

Journal of Agricultural Science ◽

10.5539/jas.v10n7p266 ◽

2018 ◽

Vol 10 (7) ◽

pp. 266

Author(s):

José Israel Pinheiro ◽

Adriana Guirado Artur ◽

Carlos Alberto Kenji Taniguchi ◽

Jaciane Rosa Maria de Souza ◽

William Natale ◽

...

Keyword(s):

Chemical Analysis ◽

Poultry Litter ◽

Mineral Fertilizer ◽

Organic Fertilizers ◽

Nutrient Accumulation ◽

Phosphorus Accumulation ◽

Crop Cycle ◽

Use Efficiency ◽

P Recovery ◽

Unripe Fruits

This study aimed to evaluate macronutrients use efficiency and phosphorus accumulation, partition and partial balance in the melon hybrid Goldex F1, in response to mineral and organic fertilizers. The following fertilizations were evaluated: mineral fertilizer; bovine manure; bovine manure associated with mineral fertilizer; poultry litter; and poultry litter associated with mineral fertilizer. Plants were collected and separated into leaves, stem, and flowers and, when there were, unripe and ripe fruits for chemical analysis. Phosphorus accumulation increased along the melon crop cycle. Phosphorus partition between leaves + stems + flowers and unripe fruits + ripe fruits showed that about 80% of P was allocated to the fruits. The decreasing order of use by the plant was S > P > Mg > Ca > N > K. Only the treatment with poultry litter was within the range considered as adequate for P recovery. Mineral and organic fertilizers did not interfere with nutrient accumulation and P partition by the melon plants.

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