Spatial variation of attainable yield and fertilizer requirements for maize at the regional scale in China
Field Crops Research(2017)
摘要
•We examine spatial variability of fertilizer requirements at regional scale.•Relative yield was adopted to assess soil nutrient supply capacity.•There was strong spatial variability (25.5%) in attainable yield among regions.•Large variations in fertilizer application rates occurred across all regions.
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关键词
AY,K,MLYR,N,NC,NE,NW,P,RY,SW
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