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本文在鄱阳湖区水稻栽培“经验模式”的基础上,利用旋转设计测得的参数。建立了鄱阳湖区杂交晚稻产量等九个性状的回归模型。通过计算机的模拟,筛选了亩产高于850斤的农艺组合方案。由此证明了“经验模式”的可行性。通过边际分析,对利润最大的方案进行了估计;对模型的主效应和交互效应分析,不但指出了氮肥、秧龄是宜重点控制的因子,而且说明足肥、中苗、适龄壮秧是杂交晚稻的增产关键。
Based on the “experience model” of rice cultivation in Poyang Lake region, this paper uses the parameters measured by rotation design. A regression model of nine traits such as yield of late hybrid rice in Poyang Lake was established. Through the computer simulation, we screened the agronomic combination plan of more than 850 kg mu. This proves the feasibility of “empirical mode”. Through the marginal analysis, the most profitable programs were estimated. The main effects and interaction effects of the model not only pointed out that nitrogen fertilizer, seedling age should be the key control factor, The key to increasing production.