摘要
通过氮、磷、钾3大要素,高、中、低3种土壤肥力,不施肥、氮磷配、氮钾配及磷钾配4种搭配方式,采取4个施肥水平,即0水平=不施肥、1水平=本地最佳施肥量、2水平=本地最佳施肥量×2、3水平=2水平×1.5(过量施肥水平),另加硫酸锌处理,经回归方程计算分析,找出高中低水平田不同产量结构氮、磷、钾的最佳配比,获得最大产量效能。
Through three essentials of fertilizer of the nitrogen, phosphorus and potassium; high, medium and low three kinds of soil fertility, no fertilizer, with nitrogen and phosphorus, nitrogen, potassium and phosphorus and potassium distribution with four kinds of allocation, and adopt four levels of fertilization, that is, level 0 = not fertilization, 1 = local best fertilizer, 2 = local optimum level of fertilizer × 2,3 level = 2 level × 1.5 (the level of over-fertilization), plus zinc sulfate treatment, calculated by the regression equation analysis to identify high,medium, low-level production structure in different fields of nitrogen, phosphorus and potassium the best ratio of performance to maximize production.
关键词
夏玉米
施肥水平
最佳配比
产量效能
summer maize
fertilizer level
the best ratio
performance to maximize production
