河南农业科学Issue(6)：44-48,5.
养分专家系统推荐施肥对超高产夏玉米产量及养分吸收利用的影响
Effects of Nutrient Expert Recommend Fertilization on Yield, Nutrient Absorption and U tilization of Super-High-Yield Summer M aize
摘要
Abstract
In order to realize the scientific fertilization of super-high-yield summer maize ,the field experiment was conducted to study the effects of nutrient expert recommend fertilization on yield , economic benefit ,nutrient accumulation and fertilizer use efficiency of summer maize .The results showed that the nutrient expert recommend fertilization increased the grain yield by 5.28% ,the economic benefit by 6.71% and the net profit by 1 414 yuan/ha in comparison to the conventional fertilizer application . The nutrient expert recommend fertilization could promote the nutrient absorption and utilization of super-high-yield summer maize and maintain the soil nutrient balance .The partial factor productivity from applied fertilizer was 38.25 kg/kg .The agronomic efficiency of N ,P2 O5 and K2 O was 7.73 ,12.50 and 9.01 kg/kg respectively , and the fertilizer use efficiency w ere 28.76% ,13.15% and 43.31%respectively .The method of maize recommend fertilization was worthy of popularization and application in super-high-yield summer maize .关键词
超高产夏玉米/养分专家系统/推荐施肥/产量/肥料利用效率Key words
super-high-yield summer maize/nutrient expert for maize/recommend fertilization/yield/fertilizer use efficiency分类
农业科技引用本文复制引用
王宜伦,苏瑞光,刘举,王磊,白由路,谭金芳..养分专家系统推荐施肥对超高产夏玉米产量及养分吸收利用的影响[J].河南农业科学,2014,(6):44-48,5.基金项目
中国国际植物营养研究所（IPNI）合作项目（BFDP HenanAU 2012）；河南农业大学博士基金项目 （）
