摘要
采用回归旋转正交组合设计 ,对盆栽春玉米进行了孕穗期和开花期不同土壤水分处理试验。建立了孕穗期(X1 )和开花期 (X2 )土壤水分与产量 (Y)的关系模型 :Y=90 .5 +7.98X1 +6 .97X2 - 2 .2 5 X1 X2 +6 .38X1 2 - 7.38X2 2 。孕穗期的土壤相对含水量不应低于 5 4%。开花期的理想土壤相对含水量为 6 5 %。
The mathematical model for the relationship between corn yield(\%Y\%) and soil water at elongation and blooming stage has been established: \%Y=90.5+7.98X\-1+6.97X\-2-2.25X\-1X\-2+6.38X\-1\+2-7.38X\-2\+2\%. The result shows that the field moisture capacity at elongation stage should not below than 54%, and a 70%~74% of field moisture capacity at elongation stage, 60%~70% at blooming stage will help to produce the best yield.
出处
《中国沙漠》
CSCD
北大核心
2000年第S1期63-64,共2页
Journal of Desert Research
基金
国家"973"项目! ( G19990 43 4 0 0 )
国家"九五"攻关项目! ( 96-92 0 -13 -0 2 )
院特别支持项目 !( KZ95 T-0 4
KZ95 1-A1-3 0
