春玉米春毛豆不同复合种植方式的产量效应和生态经济效益  

The Efficiency of Yield and Ecological Economy of Different Intercropping System of Spring Corn and Soybean

作　　者：刘建 徐少安 周根友 

机构地区：[1]江苏省沿江地区农科所,如皋226541

出　　处：《安徽农业科学》2000年第4期440-443,共4页Journal of Anhui Agricultural Sciences

基　　金：江苏省九.五重点攻关项目 !(BE 9930 7 2 );江苏省农业科学院院基金项目

摘　　要：以在长江下游沿江地区建立春玉米为中心的多元多熟高产高效新型种植体系为目标 ,设置了玉 豆同钵苗两段覆膜、玉 豆同钵苗露地移栽、玉 豆分行两段膜间栽 3种玉 豆复合种植方式和纯种植玉米、毛豆 5个处理的产量效应和经济效益对比试验。研究了在不同复合种植方式的条件下 ,春玉米、春毛豆两作物的收获产量 ,群体的光合面积效应 ,能量投入、产出及能量产投比 ,土壤有机质形成量及N、P2 O5 、K2 O等养分平衡 ,以及产值、成本、纯收益、新增纯收益率、边际成本报酬率等经济效益指标 ,结果表明 :在不降低现行春玉米种植密度 (82 5 0 0株 /hm2 )的前提下 ,通过两段膜技术 ,实现玉 豆同钵苗方式、玉 豆分行间栽方式 。The experiment in the different intercropping models of spring corn and soybean was conducted to establish new cropping system with high yield and high efficiency in the middle and low Yangtze River region. The index of economic efficiency such as yield of spring corn and soybean and the photosynthetic efficiency of the intercropping population and so on were compared in five experimental treatments. The result indicated the cultivation method of raising seedlings within one pot and intercropping cultivation of spring corn and soybean can significantly enhance total crop yield and ecological efficiency under the prerequisite of ensuring the corn planting-density (82500 plants/hm 2).

关 键 词：种植方式 春玉米 春毛豆 产量 生态经济效益 

分 类 号：S513.047[农业科学—作物学] S344