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为探索三都水族旱育稀植丰产栽培模式 ,应用农业系统的原理和方法 ,采用 4因素 2次正交旋转组合设计 ,以对水稻旱育稀植生育影响较大的可控因子播期 (X1) ,穗粒追肥到叶龄 (X2 ) ,移栽叶龄 (X3 ) ,密度 (X4 )为决策变量 ,产量为目标函数 ,进行田间试验 ,建立了水稻旱育稀植71 7.31 6kg/ 6 6 7m2 以上的丰产农艺措施组合为 :播种期 4月7日～ 4月 1 0日 ,穗粒追肥到叶龄是倒 3.2 96～ 2 .2 0 4叶 ,移栽叶龄是 5 .95 1～ 6 .45 1叶 ,密度是 1 1 5 33～ 1 2 0 33株 ,本试验长件下 ,播种期是影响产量的第 1重要因素 ,密度是影响水稻旱育稀植产量的第 2主导性因素。穗粒追肥倒叶龄、移栽叶龄对水稻旱育稀植和影响也达显著水准。移栽叶龄与播期、穗粒追肥倒叶龄、密度之间对产量有明显的互作
In order to explore the cultivation and cultivation model of dry and sparsely-planted high-yielding crops in Sandu Shui Autonomous Region, the four-factor-two orthogonal rotation combined design was applied to the principle and method of agricultural system. The controllable factors with great influence on dry- X1), spikelet topdressing to leaf age (X2), transplanted leaf age (X3) and density (X4) were the decision variables and the yield was the objective function. The combination of high yield agronomic measures above 6m2 was: sowing date April 7 to April 10, the spikelet topdressing leaf age was down 3.2 96 ~ 2.24 leaves, the transplanted leaf age was 5.951 ~ 6 .451 leaves, and the density was 1135 ~ 12203. Under the long pieces of this experiment, the sowing date was the first important factor affecting the yield, and the density was the second dominant factor affecting the yield of dry nursery plants Sexual factors. Spike grain top-dressing age, transplanted leaf age on the dry cultivation of rice and its impact has reached a significant level. Transplanting leaf age and sowing date, spikelets top-dressing age, the density of yield on the obvious interaction