优质早稻T78优2155综合高产栽培技术研究

T78优2155是福建省三明市农科所育成的杂交早稻新组合，已通过福建、广西、广东省品种审定委员会的审定。为了探讨其高产栽培技术，运用最优设计，对优质早稻T78优2155进行移栽叶龄、密度和施N量3项栽培措施研究。建立产量与3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，3项措施对产量都有影响。并经微机模拟筛选出高产的技术措施是：4.0~5.2叶移栽，每公顷插16.5~31万丛，施纯N量155~212kg。

A Study on the Culture Techniques of High Yield for the Fine Quality Early Rice-T78 you 2155

T78 you 2155 was an early hybrid rice combination which is bred by Sanming Institute of Agricultural Science. It had been registered and released by the Crop Variety Appraisal Committee of Fujian, Guanxi and Guandong province. A comprehensive culture techniques for fine quality early rice-T78 you 2155 was studied by the method of optimization design. Three influential elements for the culture techniques were planting density (x1), quantities of nitrogen (x2) and leaf age in transplanting (x3). The regression models of three elements with yield were established. The results showed that the yield was influenced by three elements. After simulation screening and optimal selection by computer, the comprehensive culture techniques of high yield were 4.0~5.2 leaves for transplanting, as 165000~310000 hills per hm2, and 155~212kg N per hm2.