杂交稻特优73高产高效综合栽培技术研究

Studying on the Culture Techniques of High Yield and Efficiency for the Hybrid Rice-Teyou 73

运用最优设计 ,对特优 73进行移栽叶龄、密度和施氮 (N)量 3项栽培措施研究。建立产量、净收入与 3项栽培措施的回归模型。分析了栽培措施对产量、净收入的影响 ,结果表明 ,3项措施对产量、净收入都有影响。并经微机模拟筛选出高产高效的技术措施是 :5～ 6叶移栽 ,每公顷插 17 5 5～ 2 8 2 8万丛 ,施纯氮量 14 0～ 188kg。

A comprehensive culture techniques for the Hybrid Rice-Teyou 73 was studied by the method of optimization design Three influential elements for the culture techniques wereleaf age in transplanting(x 1 ),planting density(x 2 ),quantities of nitrogen(x 3 ) The regression models of three elements with yield,net revenue were established The results showed that three elements influenced the yield and net revenue After simulated screening and optimal selection by computer,the comprehensive culture techniques of high yield and efficiency were 5～6 leaves for transplanting,as 175500～282800 hills per hm 2 ,and 140～188 kg N per hm 2