优质杂交早稻T优7889高产高效综合栽培技术研究  

Study on Synthetical Culture Techniques of High Yield and Efficiency for Early Hybird Rice Tyou7889

作　　者：陈晓波[1] 饶鸣钿 

机构地区：[1]福建农业职业技术学院,福建福州350007 [2]福建省沙县农业局,福建沙县365500

出　　处：《宜春学院学报》2005年第4期68-72,共5页Journal of Yichun University

摘　　要：运用二次回归旋转组合设计,对优质杂交早稻T优7889进行移栽叶龄、插植密度、施N、P、K肥用量5项农艺措施综合栽培技术研究.建立了产量、净收入与5项农艺措施的回归模型.分析了农艺措施对产量和净收入的影响,结果表明,对产量的作用主要是施N量、叶龄和插植密度,对净收入的作用主要是施N、P、K肥量和叶龄.并经微机模拟筛选出每667m2产量≥400kg、净收入≥380元的取值范围是:3.5～5.5叶移栽、插1.43～1.98万丛、施纯N 11～12kg、P2O5 0～1.8kg、K2O 3.75～7.88kg.A comprehensive culture techniques for early hybird rice Tyou7889 was studied by the method of quadratic second order regression rotation design. Five influential elements for culture techniques were leaf age in transplanting（ x2 ）, planting density（x2）, quantities of nitrogen（x3）, phosphorus（ x4）and potassium（x5） .The regression models of five elements with yield, net revenue was established. The results showed that main agronomic practices for yield were leaf age , planting density and nitrogen amount, and those for net revenue were leaf age , planting density, quantities of nitrogen, phosphorus and potassium. After simulated screening and optimal selection by computer and synthetical analysis, the comprehensive culture techniques of high yield and efficience were 3.5 - 5.5 leaves transplanting, as 14300 - 19800 hills per 667m^2, 11 - 12kg N per 667m^2,0 - 1.8kg P2O5 and 3.75 - 7.88kg K2O per 667m^2.

关 键 词：杂交早稻 T优7889 回归设计 效应分析 模拟选优 

分 类 号：S51[农业科学—作物学]