【摘要】 运用最优设计,对 优明86进行移栽叶龄、密度和施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、净收入均有影响.经微机模拟,筛选出高产高效的技术措施:5.43-5.52叶移栽,每公顷插秧22.70-23.73万丛,施纯N量150.8-153.8kg.更多还原

【Abstract】 Comprehensive culture techniques for super hybrid rice, ⅡYouming 86, were studied by the method of optimization design. Three influential elements for the culture techniques were leaf age in transplanting （x₁）, planting density （x₂）, quantities of nitrogen （x₃）. The regression models of three elements with yield and net revenue were established. The results showed that three elements influenced the yield and net revenue. After simulative screening and optimal selection by computer,the comprehensive culture techniques of high yield and efficiency were 5.43-5.52 leaves for transplanting, 227 000-（237 300） clumps per hm², and 150.8-153.8 kg N per hm².更多还原