旱塬地膜玉米播期密度施肥量试验  

Experiment on sowing time density and fertilizer amount of corn covering with plastic film in dry land

作　　者：何高社[1] 

机构地区：[1]杨凌职业技术学院科研处,陕西杨凌712100

出　　处：《河南科技大学学报（农学版）》2004年第2期10-12,共3页

基　　金：陕西省农业科学试验示范基地资助项目(2000-531)

摘　　要：采用回归正交旋转组合设计和计算机模拟选优方法,优化出了旱塬地区地膜玉米667m2产量750kg以上的适宜播种期为4月6-11日,密度为4000～4200株/667m2,施肥量为N8.39kg/667m2、P2O54.59kg/667m2,经反馈验证,优化方案切实可行。Using orthogonal regression rotational fabricate design and simulated selection method with computer to get the yield of corn covering with plastic film over 750kg/667m^2, the result is that the optimal sowing time is April (4-11);the proper density is about 4000～4200 stems/667m^2; and the fertilizer applying amount is (N 8.39kg/667m^2,)P_2O_5 4.59kg/667m^2.Back coupling shows the scheme is practical.

关 键 词：旱塬地区 玉米 地膜覆盖栽培 播期 栽培密度 施肥量 

分 类 号：S513[农业科学—作物学]