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采用三因素五水平二次回归旋转设计，对杂交中稻旱育稀植的高产配套栽培技术进行了研究，配置出农艺措施效应的数学模型，并寻配出优化的农艺方案。
The three-factor and five-level quadratic regression rotation design was used to study the high-yielding cultivation techniques of dry-spring planting and sparse planting of hybrid mid-season rice. Mathematical models of agronomic measures were configured and the optimized agronomic schemes were found out.