【摘要】 本试验应用系统工程的原理和方法,在给水条件下,以影响马铃薯产量较大的5个可控主栽因子为决策变量,以产量指标为目标函数,进行田间试验。通过电脑分析绘图,明确了各项农艺措施的主次作用及交互作用,建立了综合农艺措施数学模型,筛选出亩产大于3500公斤的最佳农艺措施组合方案,经张家口市姚家庄乡进行大面积验证,证实了该模型的实际效果。更多还原

【Abstract】 The field experiment was made with the principle and method of system engineering un-der irrigated condition in 1989～1990.Five main cultural control factors with great effects onpotato yield were used as variant and potato yield was used as goal function.Through com-puter analysis and figure,a mathematical model of comprehensive agronomic approaches hasbeen established that gave out the main and secondry factors affecting the yield,and the yieldresponse of double factors.The best combination of agronomic approaches with which pro-duction of 3500kg/mu is yielded was screened:planting density 4039～4189 plants/mu,or-ganic fertilizer 3452～3587 kg/mu,N 6.2～6.5 kg/mu,P₂ O₅ 9.1～9.5 kg/mu and K₂ O 5.8～6.2kg/mu.The practical effect of the model was demonstrated by large field experiment inYaojiazhuang Xiang of Zhangjiakou City.更多还原