密度、肥料对玉米产量协同效应的初步研究  

A Preliminary Study on Coordinative Effect of Cropping Density and Fertilizer on the Yeild of Maize(Zea mays L.)

作　　者：朱应远[1] 宋少援[1] 曹林[1] 张满昌 朱文亮 

机构地区：[1]湖北农学院,湖北省习家店农业技术推广站

出　　处：《湖北农学院学报》1994年第3期50-55,共6页Journal of Hubei Agricultural College

基　　金：湖北省教委科研基金

摘　　要：在鄂西北低山丘陵区研究玉米的种植密度和施肥量对其产量的协同效应，结果表明：玉米产量与种植密度和施肥量的函数为一报酬递减函数，种植密度和施肥量有一合理组合区，在该区域内增加种植密度在施肥量能起到增产之目的，且种植密度和施肥量具有互补性，即种植密度（或施肥量）的减少可用增加施肥量（或种植密度）来补偿以保证玉米产量不减。The coordinative effects of cropping densityand fertilizer on the yeild of maize are reseached inthe hills of the northwestern hubei province.The results show that the effcct function of cropping density and fertili-aer is the payment decrement function,In this function ,the effect of cropping density and fertilizer has a retionalrange .Maize yeild riscs with the increase of cropping density and fertilizer,and the effect of cropping density and fertilizer can be componsated mutually in the range,nanlely,the decreasing cropping density or fertilizer can becompensated by increasing fetilizer or cropping density to maintain the maize ycild without decreasing.

关 键 词：玉米 施肥 种植密度 施肥量 协同效应 

分 类 号：S513.062[农业科学—作物学]