高施肥水平下密度对春玉米产量的影响  

Effect of Plant Density on Spring Corn Yield Under High Rate Fertilizer

作　　者：曹庆军[1] 王洪预[1] 张铭[1] 张玉斌[1] 曹宁[1] 唐心龙[1] 许鹏[1] 崔金虎[1] 

机构地区：[1]吉林大学植物科学学院,长春130062

出　　处：《玉米科学》2009年第3期113-115,共3页Journal of Maize Sciences

基　　金：国家"十一五"科技支撑计划(2006BAD02A10-2-2);吉林省科技发展计划项目(20060201-2)

摘　　要：采用田间试验的方法,在吉林省中西部干旱和半干旱区研究了高肥力条件下密度对产量和相关性状的关系。结果表明:在高肥力条件下,密度对耐密性不同的品种比常规施肥条件下都有不同程度的增加,耐密性强的品种先玉335适宜种植密度为80000株/hm2,耐密性中等品种军单8适宜种植密度在65000株/hm2。分析结果还表明,在高施肥水平下,密度对产量性状也有不同程度的影响,其中密度对秃尖长影响最大,其次是穗长、穗粒数和百粒重等。The effect of plant density on yield under high rate fertilizer and the related traits were studied by field test method in central and western arid and semi-arid zones of Jilin province. The result showed that planting density had a significant effect on corn yield, the highest yield plant density of hybrid Xianyu335 and hybrid jundan8 were 80 000 plants/ha and 65 000 plants/ha respectively. Plant density had greatest influence on the length of ear barren tip length, and then ear length, kernels per ear, and 100- kernel weight.

关 键 词：春玉米 施肥 密度 产量 

分 类 号：S513.062[农业科学—作物学]