不同种植密度和施氮量对顺单7号产量的影响  

Effect of Different Planting Density and Nitrogen Level on Yield of Shundan 7,a New Hybrid Maize Variety with a Big Ear

作　　者：叶田方 张鹏[1] 汪朝明 张毅[1] 潘中涛[1] 

机构地区：[1]贵州省安顺市农业科学研究所,贵州安顺561000

出　　处：《贵州农业科学》2011年第8期65-68,共4页Guizhou Agricultural Sciences

基　　金：2011年度贵州省重点成果推广计划项目

摘　　要：为探索种植密度和氮肥追施量对顺单7号杂交玉米产量及经济性状的影响,进而提供杂交玉米顺单7号高产栽培科学的种植和施肥技术指导,促进增产增收,以大穗型杂交玉米品种顺单7号为试验材料,采用2因素裂区试验设计,研究了不同氮肥追施量和种植密度对产量、干物质积累、叶面积系数、穗粒性状等的影响。综合评比结果表明:以氮肥施用量25 kg/667m2,种植密度3 400株/667m2为比较适宜的种植技术方案,产量可达745.4 kg/667m2。The effects of different planting density and nitrogen level on yield,dry matter accumulation,leaf area coefficient and grains per ear of Shundan 7,a new hybrid maize variety with a big ear,were studied by using two-factor split plot design to provide the scientific basis for high yield of Shundan 7.The results showed that the yield of Shundan 7 could reach 745.4kg/667m2 with nitrogen fertilizing amount of 25kg/667m2 nitrogen fertilizer and planting density of 3400 plants/667m2.

关 键 词：顺单7号 经济性状 氮肥 密度 产量 

分 类 号：S511[农业科学—作物学]