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为了向大面积杂交早稻生产提供高产的农艺措施指标,我们根据系统工程学中“最佳模拟配合法”原理,采用五元二次正交回归旋转组合设计法,拟出五个因子,每个因予选择五个水平,在严格控制条件下,进行了三次试验。1983年在灰黄泥田用威优64、威优40试验,3月26日播种。威优64在7月27
In order to provide high-yield agronomic measures to large-scale early rice hybrid production, we developed a five-element quadratic orthogonal regression rotation combination design method based on the principle of “best simulation and matching method” in system engineering, and proposed five factors Due to the choice of five levels, under strict control conditions, conducted three tests. In 1983 in the gray and yellow muddy field with Weiyou 64, Weiyou 40 test, March 26 planting. Weiyou 64 on July 27