Results 11 to 20 of about 82,134 (215)
Nitrogen and potassium fertilization of potato
Agricultural and Food Science, 1978 Fourteen one-year N- and K-fertilization experiments for potato were carried out on coarse mineral soils on different sites in Finland. The nitrogen fertilization (from 50 to 156 kg/ha N) was given in the form of ammonium nitrate limestone, and the ...
Hilkka Tähtinen
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Short-term effects of different fertilization measures on water-stable aggregates and carbon and nitrogen of tea garden soil [PDF]
E3S Web of Conferences, 2020 In order to study the effects of different fertilization measures on spring tea soil in Southwest Sichuan, five treatments were set up, including no fertilization (CK), full chemical nitrogen fertilizer (CN), 50% nitrogen fertilizer +30% organic ...
Huang Shengjie +6 more
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Nitrogen fertilization time affects the root reserves of tropical grasses
Pesquisa Agropecuária Tropical, 2023 Grass regrowth can reduce root mass, delaying reestablishment and grazing periods by reducing the nutrient absorption from the soil by plants. This study aimed to determine the optimal intervals for harvest and nitrogen fertilization in Urochloa ...
Lucas Gimenes Mota +4 more
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Guan'gai paishui xuebao, 2023 【Objective】 Nitrogen loss from soils is a pervasive environmental issue facing agricultural production in many countries. In this paper, we studied the combined effect of rainfall and fertilization on nitrogen loss via surface runoff from paddy fields in
LI Jianqiang +6 more
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The Response of Three Varieties of Wheat to Nitrogen Fertilization [PDF]
مجلة جامعة النجاح للأبحاث العلوم الطبيعية, 1998 The effects of different levels of nitrogen fertilization (0, 2, 4, 8 and 16 kg N / dunum) on the production of three wheat varieties (780, Lakeesh and Anbar) were studied. The experiment was conducted for two successive seasons 1994 and 1995.
Hassan Abu-Qaoud, Numan Mizyed
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Agriculture, 2022 The aim of the study was to evaluate the effect of various fertilization treatments, including nitrogen, potassium and phosphorus fertilization, in long-term experiments for selected UAV (unmanned aerial vehicle)-derived spectral vegetation indices (NDVI—
Elżbieta Wójcik-Gront +2 more
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Geophysical Research Letters, 2023 Although terrestrial biosphere models (TBMs) with and without nitrogen cycling successfully reproduce the historical terrestrial carbon sink, the influence of nitrogen cycling under interacting and intensifying global change drivers in the future is ...
S. Kou‐Giesbrecht, V. K. Arora
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EFFECT OF NITROGEN FERTILIZATION ON GRAIN YIELD AND QUALITY OF HULLED AND HULLESS SPRING OATS [PDF]
Poljoprivreda, 2015 A field trial was set up in 2014 the growing season at the Bc Institute’s experimental field in Botinec aiming to investigate the effect of four levels of nitrogen fertilization on grain yield, test weight, thousand kernel weight and plant height of ...
Miroslav Bukan +6 more
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Shuitu baochi tongbao, 2023 [Objective] Nitrogen and phosphorus loss characteristics and soil fertility changes on a gentle slope of cultivated land were analyzed under optimal fertilization and cross-slope tillage in order to provide a basis for reducing nitrogen and phosphorus ...
Gong Yao +4 more
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Nitrogen fertilizer: Retrospect and prospect [PDF]
Proceedings of the National Academy of Sciences, 1999 The rising fertilizer use accompanying more people eating more has been called exponential (1) and prompted fears of polluted water and consequent methemoglobinemia (2) and hypoxia (3). It also has raised alarm about greenhouse warming (4) and an altered global N cycle and thus primary production (5) and diversity (1) of vegetation. In this plethora of
C R, Frink, P E, Waggoner, J H, Ausubel
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