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水稻肥床旱育稀植具有早发优势。为掌握合理群体的起点和最佳施肥量，１９９５－１９９７年在惠萍镇农技站科研田进行了“密肥”试验，在取得各项数据的基础上，应用二因素饱和－Ｄ最优混合回归设计，建立了高产水稻肥床旱育稀植密肥技术措施的数学模型。１试验设计与研究方法?
Rice bed dry and fertile planting early onset advantage. In order to grasp the starting point of the reasonable population and the optimal fertilization rate, a “fat and fat” experiment was conducted in the scientific research field of Huiping Agricultural Technology Station from 1995 to 1997. On the basis of obtaining the data, two-factor saturation-D optimal Mixed regression design, established a mathematic model of high-yielding rice fertilizer technology for dry-raising sparsely-packed and densely packed fertilizer. 1 experimental design and research methods?