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一、试验设计: 在1984年的研究基础上(《福建稻麦科技》(3):3,26-34),改进设计进行试验,以确定汕优63双晚栽培的丰产模式,为生产提供最佳技术组合方案。试验取秧田播种量(包含移栽叶龄)(X1)、亩栽植丛数(X2)、亩施N量(X3),亩施P量(X4)、亩施K量(X5)五项技术因素,选用P=5(1/2实施)的二次回归正交旋转组合设计,其有关参数为:γ=2,MC=16,MO=10,Mγ=10,N=36。考虑到时间飘移,取MC0=8,Mγ0=2,将全试验划为三个正交区组,因子组和星号组各为十二个试验区。正交区组内各试验进行随机排列。试验区面积为144平方市
I. Experimental Design: On the basis of the 1984 study (“Fujian Rice and Wheat Science” (3): 3, 26-34), experiments were carried out to improve the design to determine the double crop yield model for Shanyou 63 for production The best technology portfolio. Five techniques were used to determine the seeding rate (including transplanting leaf age) (X1), the number of mu planting (X2), the amount of N application (X3), the amount of P application (X4) and the amount of K application Factors, selected P = 5 (1/2 implementation) quadratic regression orthogonal rotation combination design, the relevant parameters: γ = 2, MC = 16, MO = 10, Mγ = 10, N = Taking into account the time drift, take MC0 = 8, Mγ0 = 2, the test is divided into three orthogonal block group, the factor group and the asterisk group each of twelve experimental areas. The trials in the orthogonal block were randomly arranged. The test area is 144 square meters