旱地玉米高产综合农艺措施数学模型的研究  

Study on The Mathematical Model of Agriculture Integrated Measures for High yield of Corn in dry Land

作　　者：于桂霞 王继才[2] 

机构地区：[1]黑龙江省农科院嫩江农科所,齐齐哈尔161041 [2]齐齐哈尔市种子管理处

出　　处：《玉米科学》1999年第4期35-39,共5页Journal of Maize Sciences

摘　　要：本试验研究用系统工程方法和高等数学原理,采用四元二次回归正交旋转组合设计,并借助于电子计算机的高速模拟功能,建立数学模型。剖析了播期(X1) 、密度(X2) 、氮肥(X3) 、磷肥(X4) 四项综合农艺措施的主效应和交互效应与产量的关系。它们对产量的影响大小顺序是:密度> 氮肥> 磷肥> 播期。并筛选了每公顷产量8 200 ～9 000 kg 以上,其最优组合方案农艺措施是:播期5 月5 日～5 月10 日,密度公顷4-8 ～5-4 万株,氮肥( 纯N) 每公顷155-93 ～168-53 kg ,磷肥( 纯P)每公顷64-8 ～87-7 kg 。确定了置信区间,为旱地玉米高产综合运用农艺措施提供科学依据。The method of systematic engineering and the tenet of higher mathematics were used,and the four elements quadratic regression orthogonal rotational combination design was adoped in this experiment,and set up the mathematical model with computer.The relations between the yield and the main effect and interaction of four synthetic measures of agriculture namely seeding time (X 1),density(X 2),nitrogenous fertiliser(X 3),phosphate fertilizer(X 4)have been analyzed.Their effect to the yield is arranged from big to small:density,nitrogenous fertilizer,phosphate fertilizer,seeding time.The best plan is :seeding time is from May fifth to tenth,densityis between 48 and 54 thousands plants per hectare,nitrogenous fertilizer(pure N)is between 155.93kg and 168.53kg per hectare,phosphate fertilizer(pure P)is between 64 8 kg and 87 7 kg per hectare.The confidence interval has been determined.It has provided the scientific basis for high-yield of corn in dry land with integrated measures of agriculture.

关 键 词：玉米 农艺措施 回归方程 

分 类 号：S513.04[农业科学—作物学]