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Long-Term Evaluation of Manure Application on Maize Yield and Nitrogen Use Efficiency in China

文献类型： 外文期刊

作者： Duan, Yinghua 1 ; Xu, Minggang 1 ; Wang, Bairen 1 ; Yang, Xueyun 2 ; Huang, Shaomin 3 ; Gao, Suduan 4 ;

作者机构： 1.Chinese Acad Agr Sci, Minist Agr China, Inst Agr Resources & Reg Planning, Key Lab Crop Nutr & Fertilizat, Beijing 100081, Peoples R China

2.NW A&F Univ, Coll Resource & Environm, Yangling 712100, Shaanxi, Peoples R China

3.Henan Acad Agr Sci, Inst Plant Nutr & Agr Resources, Zhengzhou 450002, Henan, Peoples R China

4.USDA ARS, Parlier, CA 93648 USA

关键词： manure: agrichemical;fertilizer;nitrogen: 7727-37-9;agrichemical;fertilizer;phosphorus: 7723-14-0;agrichemical;fertilizer;potassium: 7440-09-7;agrichemical;fertilizer;inorganic nitrogen: agrichemical;fertilizerYangling: China;Asia;Palearctic region;Zhengzhou: China;Asia;Palearctic region;Qiyang: China;Asia;Palearctic region;Changping: China;Asia;Palearctic region;crop yield;crop production;acid soils;alkaline soils;nitrogen use effi ciency;soil nutrient storage

期刊名称：SOIL SCIENCE SOCIETY OF AMERICA JOURNAL （ 影响因子：2.307； 五年影响因子：2.832 ）

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收录情况： SCI

摘要： Improving N use efficiency (NUE) and reducing the negative impact of N fertilization on the environment are essential for sustaining agricultural production in many intensive farming regions around the world. The objective of this research was to investigate the effect of various fertilization regimes on yield, N uptake, and NUE by maize (Zea mays L.) in long-term (15-yr) experiments performed at four sites (Changping, Zhengzhou, Yangling, and Qiyang) in China. Eight treatments were examined: unfertilized control (CK); inorganic fertilizer (manufactured source) N, N and P, N and K, and N, P, and K; inorganic N, P, and K with manure (NPKM); 1.5' the rate of NPKM (1.5NPKM); and N, P, and K with maize stover returned (NPKS). Compared with inorganic fertilization, mixed inorganic and manure fertilization (NPKM and 1.5NPKM) resulted in more stable and significantly higher yield and NUE as well as increases in soil nutrient storage at all sites, with the most significant improvement in the acid soil (pH = 5.7) at Qiyang. Phosphorous was identified as one of the most important limiting factors in maize NUE because the NUE at all four sites increased from about 20 to 45% by increasing the available P in the soil. Higher NUEs (up to 70%) were observed mostly from the continuous manure applications. We conclude that manure and P applications are the most important and effective nutrient management strategies for both the acid and alkaline soils in this study for maize production in China.

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