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应用旋转回归组合正交设计对冬小麦测土施肥进行研究,结果表明,在保证肥料需求基础上,影响小麦产量的主要因子其作用顺序是:播期、播量>浇水量>施肥量。播期、浇水与施肥均呈正交互作用。充分发挥肥料增产作用最经济的途径,就是要抓住适期播种、合理灌溉,反之会降低肥料投入效益。
Rotation regression combined orthogonal design was used to study the soil fertilization of winter wheat. The results showed that the main factors influencing the yield of wheat were: sowing date, sowing rate> watering amount> fertilizer amount. Sowing date, watering and fertilizing showed positive interaction. Give full play to the role of fertilizer production increase the most economical way is to seize the appropriate sowing, irrigation, and vice versa will reduce the efficiency of fertilizer inputs.