长期施氮磷钾肥对轮作作物产量及土壤肥力影响  

Response to Yield and Soil Fertility of Rotation between Wheat and Maize (Soybean) on the Permanent Fertilization of N,P,K Fertilizer

作　　者：孙克刚[1] 张桂兰[1] 王英[1] 崔转铃 张学斌[1] 

机构地区：[1]河南省农业科学院土壤肥料研究所,郑州450002

出　　处：《中国农学通报》1999年第6期18-23,共6页Chinese Agricultural Science Bulletin

摘　　要：肥料长期定位试验结果表明,氮磷或氮磷钾以适宜用量和比例配合施用,能增加作物产量且使其稳产性好;冬小麦、夏大豆、夏玉米的产量变异系数分别比对照处理小39.9％～42.2％、21.3％～25.4％、5.5％～13.8％,同时提高了单位养分增产效果。The paper studies the effect of fertilizer application on yield of wheat, maize (soybean) and soil fertility form long - term trials, under wheat - maize (soybean) cropping system conducted on subtype of Shajiang black soil in Henan province. Results indicated that fertilization of nutrient balance can facilitate the high yield of rotation crops, and raise the effect of fertilizer and soil fertility.

关 键 词：定位试验 产量 变异系数 轮作 肥料效应 土壤肥力 

分 类 号：S158[农业科学—土壤学] S344.1[农业科学—农业基础科学]