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 Utilization of Super-High-Yield Summer Maize

作　　者：王宜伦[1,2] 苏瑞光[1] 刘举[1] 王磊[2] 白由路[2] 谭金芳[1] 

机构地区：[1]河南农业大学资源与环境学院/河南粮食作物协同创新中心,河南郑州450002 [2]中国农业科学院农业资源与农业区划研究所,北京100081

出　　处：《河南农业科学》2014年第6期44-48,共5页Journal of Henan Agricultural Sciences

基　　金：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(30300195)

摘　　要：为推动超高产夏玉米科学施肥,采用田间试验研究了养分专家系统推荐施肥对超高产夏玉米产量、经济效益、养分积累量及氮、磷、钾肥利用效率的影响。结果表明,养分专家系统推荐施肥处理超高产夏玉米较农民习惯施肥处理增产5.28%,增收6.71%,纯收益增加1 414元/hm2。养分专家系统推荐施肥处理促进了超高产夏玉米对氮、磷、钾养分的吸收利用,并实现了土壤养分平衡,其化肥偏生产力为38.25kg/kg,显著高于农民习惯施肥处理,其N、P2O5、K2O农学效率分别为7.73、12.50、9.01kg/kg,肥料利用率分别为28.76%、13.15%、43.31%。养分专家系统推荐施肥可作为超高产夏玉米推荐施肥方法推广应用。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,P2O5 and K2O was 7. 73,12. 50 and 9.01 kg/kg respectively, and the fertilizer use efficiency were 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 

分 类 号：S513[农业科学—作物学]