冬小麦优质栽培综合农艺措施的数学模型和优化方案筛选  

Mathematical Modelings of the Comprehensive Measures and the Selection of Superior Projects in High-quality Cultivation of Winter Wheat

作　　者：李雁鸣[1] 张立言[1] 李振国[1] 

机构地区：[1]河北农业大学农学系

出　　处：《河南职业技术师范学院学报》1990年第3期126-133,共8页Journal of Henan Vocation-Technical Teachers College

摘　　要：本文运用五因素二次回归正交旋转组合设计,以播期(x_1)、密度(x_2)、春季浇水次数(x_3)、施氮(N)量(x_4)和施磷(P_2O_5)量(x_5)五项栽培措施进行研究,获得了它们与目标函数Yc(籽粒蛋白质含量)和Y(蛋白质产量)相互关系的数学模型,并以此为基础进行筛选,指出了旨在获得最佳蛋白质含量和最佳蛋白质产量的栽培措施方案。In this paper, based on the data of a field experiment conducted with the combinating design of orthogonal rotating regression, using five cultivating measures, namely, sowing date ( x1 ),seed density (x2), irrigation frequency in spring ( x3 ) .nitrogen supplying rate ( x4 ) and phosphorus fertilization rate (x5)as decisive variates.wheat grain protein content ( yc ) and protein yield ( yd ) as target functions, the mathematical modelings about relations between the decisive variates and the target functions were acquired, and the projects of comprehensive cultivating measures with the highest grain protein content and thehighest protein yield in winter wheat were put forward according to the modelings acquired.

关 键 词：冬小麦 籽粒 蛋白 栽培 数学模型 

分 类 号：S512.101[农业科学—作物学]