玉米产量与种植密度的相关性研究  

Research on the Relationship between Yield and Planting Density of Maize

作　　者：郝兰春[1] 谭秀山[2] 毕建杰[2] 

机构地区：[1]泰安市气象局,山东泰安271000 [2]山东农业大学农学院作物生物学国家重点实验室,山东泰安271018

出　　处：《河北农业科学》2009年第5期9-10,23,共3页Journal of Hebei Agricultural Sciences

基　　金：国家"十一五"科技支撑计划项目(2006BAD04B01)

摘　　要：以鲁单981为试材,设种植密度5万株/hm2、6万株/hm2、7万株/hm2、8万株/hm2和9万株/hm2共5个处理,研究不同种植密度对其产量的影响。结果表明：种植密度对鲁单981产量有显著影响。在一定密度范围内,产量随密度的增加呈先增加后下降趋势,群体产量潜力随密度的增加而增加,但收获指数降低。适宜的种植密度为6.9万~8.0万株/hm2。The effect of planting density on the yield of maize variety Ludan 981 was studied. The results showed that planting density had significant effect on the yield. Within a certain range of planting density, the yield in increased first and decreased later, the yield potential increased, and the harvest index decreased with the increase of planting density. The suitable planting density was from 69 000 to 80 000 plants per hectare.

关 键 词：玉米 鲁单981 产量 种植密度 

分 类 号：S513[农业科学—作物学]