两系杂交稻两优多系1号综合高产栽培技术研究

Study on High Yield Techniques for Hybrid Rice-liangyouduoxi 1

运用最优设计,对两系稻两优多系1号进行密度、秧龄、施N、K肥用量4项栽培措施研究。建立产量与4项栽培措施的回归模型。分析了栽培措施对产量的影响,结果表明,4项措施对产量都有影响。并经微机模拟筛选出综合高产的技术措施是:每公顷插14.8￣28.1万丛,秧龄32￣33d,施纯N96.9￣167.7kg,K2O147.5￣169.8kg。

A comprehensive culture technique for the Hybrid Rice liangyouduoxi 1 was studied by the method of optimization design. Four influential elements were planting density（x1）,seedling age（x2）, quantifies of nitrogen（x3） and potassium （x4）.The regression models of four elements with yield were established. The results showed that four elements affected the yield. After simulated screening and optimal by computer, the comprehensive culture techniques of high yield were 148000-281000 hills per hm2, 32-33 days for transplanting, 96.9-167.7kg N and 147.5-169.8 kg [（20 per hm^2.