玉米不同垅作及群体结构对产量影响初报  

Primary Study on Effect of Different Ridge Cropping and population Structure Corn production

作　　者：赵殿忱[1] 陈渊[1] 王占哲[1] 郑良 

机构地区：[1]中国科学院黑龙江农业现代化研究所,哈尔滨150040 [2]黑龙江省海伦市农业科学研究所,海伦152000

出　　处：《农业系统科学与综合研究》2001年第1期47-48,53,共3页System Sciemces and Comprehensive Studies In Agriculture

基　　金：海伦试区主要粮作物集约化种植及优化模式研究! (96 -0 0 4-0 2 -0 6 )

摘　　要：以玉米三种垅作形式为主要内容 ,研究不同垅作的增产机制及相应的群体结构 ,提高玉米大面积连片种植的单产水平。试验表明大垅和大小垅种植方式具有保持和提高土壤温度、水分、抗旱抗涝的作用 ,同时适于密植 ,光能利用率高等特点 ,比常规小垅玉米增产 14 0 %～ 2 2 8%。适宜密度 6～ 7万株 /hm2 。图 3 表In this study,we have mainly undertaken the experiment on three kinds of ridge cropping of corn to investigate the machanism of increasing in yield of different ridge cropping and corresponding population structure in order to increase the unit yield of corn in large acreage planting.The results indicated that both large ridge cropping and large-small ridge cropping have the roles of conserving and increasing temperature and water in soil,drought and waterlogging resistance,which are suitable for close planting with high efficiency of energy conversion,and the corn yield increased by 14%-22.8% compared to the conventional small ridge cropping of corn.The density of rational close planting is 60-70 thousand plants/ha.

关 键 词：玉米 垅作 群体结构 产量 增产机制 光能利用率 土壤温度 

分 类 号：S513.047[农业科学—作物学] S341.9