Nutrient Uptake and Leaching from Soil Amended with Cattle Manure and Nitrapyrin
文献类型: 外文期刊
第一作者: Luo, Yang
作者: Luo, Yang;Benke, Monica B.;Hao, Xiying;Luo, Yang
作者机构:
关键词: Calcareous soil;corn;DDGS;greenhouse experiment
期刊名称:COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS ( 影响因子:1.327; 五年影响因子:1.315 )
ISSN: 0010-3624
年卷期: 2017 年 48 卷 12 期
页码:
收录情况: SCI
摘要: We investigated whether nitrification inhibitor nitrapyrin can reduce nutrient leaching and increase nutrient uptake by corn (Zea mays L.) in cattle manure amended soil. Amendments included non-amended check (CK), urea (Urea), REG (manure from cattle fed barley grain), and DDGS (manure from cattle fed 60% dried distillers grains with solubles), co-applied with or without nitrapyrin and leached or unleached with water. Nitrapyrin reduced (P<0.01) leaching of nitrate by 56, 32, and 24% from DDGS, REG, and Urea treatments, respectively, and also reduced (P<0.05) leaching of phosphate (58%), potassium (39%), calcium (39%), and magnesium (39%) from DDGS treatment. While nitrapyrin reduces the rate of ammonium conversion to nitrate, higher magnesium and phosphate levels in DDGS-amended soil favor struvite formation and reduce their leaching. Corn biomass and nutrient uptake were higher (P<0.01) in DDGS and Urea than CK and REG treatments, but remained unaffected by nitrapyrin. The benefits of nitrapyrin should be further investigated under field conditions.Abbreviations: DCD, dicyandiamide; DDGS, dried distillers grains with solubles; NI, nitrification inhibitor; TP, total P; TN, total N.
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