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本试验采用"多元二次回归正交旋转组合设计"方法,研究了小黑麦产量与播量、施肥关系,建立了一般耕作和管理条件下,小黑麦产量、投资效益等函数模型。运用微机寻优,筛选出亩产量大于370千克、400千克,投资效益大于12千克/元的高产稳产农艺措施:播量17.5千克/亩,基肥磷酸二铵12.5千克/亩,抽穗期追施纯N9.2千克/亩,分孽期与灌浆期少追或不追N肥。试验还对诸因子的效应,进行剖析。
In this experiment, “multivariate quadratic regression orthogonal rotation combination design” method was used to study the relationship between yield and sowing rate and fertilization of triticale. The functional model of triticale output and investment benefit under general farming and management conditions was established. Using computer optimization, the output of more than 370 kg per mu, 400 kg, investment efficiency greater than 12 kg / yuan of high yield and agronomic agronomic measures: sowing 17.5 kg / mu, basal fertilizer DAP 12.5 kg / mu, heading Nianchuang pure N9.2 kg / acre, sub-period of less filling and filling the grain or chase N fertilizer. The experiment also analyzed the effects of various factors.