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本文对半干旱的定西鹿马岔流域的不同地块,采用正交旋转回归设计方法,研究了播量、农肥、化肥三因子对旱地春小麦籽粒产量和经济效益的影响,以及因子间的配合关系。根据试验资料,建立了三元二次回归产量模型和经济效益模型,与实际资料拟合较好,达到极显著水平。并通过对产量模型的分析,明确了在当前生产条件下以高产为目标时,各因子的适宜用量,并明确了三个试验因子在增产中的作用是:化肥大于农肥,农肥大于播量。
In this paper, orthogonal plots of rotation regression were used to study the effects of three factors of sowing, fertilizer and fertilizer on grain yield and economic benefits of dry land spring wheat and the relationship between factors . Based on the experimental data, a quadratic regression regression model and economic benefit model were established, which fitted well with the actual data and reached a very significant level. And through the analysis of the yield model, the appropriate dosage of each factor under the current production conditions with high yield was clarified. The roles of the three test factors in increasing production were clarified: the chemical fertilizer is larger than the agricultural fertilizer and the agricultural fertilizer is larger than the sowing rate.