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以三 因子二 次正交旋 转组合设 计，得 到苏 棉１ ５ 号 皮棉 亩产 １００ ｋｇ 以 上的 优化 组 合为：移栽密 度２ ４９６ ～３ ２４５ 株／ 亩，亩 施纯氮１７ ０１ ～２１１０ ｋｇ ，并 亩用４９８ ～８０９ｇ 缩节 安进行化 控。
With the combination of quadratic orthogonal rotation design of three factors, the optimal combination of 100 kg per mu of Sumian No. 15 was obtained: the transplanting density was from 2 496 to 3 245 plants / mu, and the Mushi nitrogen was 17 01 ~ 21 10 kg, and acres with 4 98 ~ 8 09g reduction of security control.