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田间试验氮、钾肥料组合施用于饼干小麦（皖麦１８号）的植株各部分干物质和养分含量，应用多项式回归分析方法，阐述氮、钾肥料提高麦粒产量和降低其干物质含Ｎ量的植物营养生理效应。氮肥增加麦粒产量及其磷钾含量；钾肥使藁秆大量增加，植株干物质和养分尤其是Ｎ和Ｋ２Ｏ转化到麦粒的比率显著减少，从而使麦粒Ｎ％下降，这个作用随Ｎ用量增加而增强。根据多项式回归方程的推算，Ｎ用２０７．６ｋｇ／ｈｍ２和Ｋ２Ｏ１００．８ｋｇ／ｈｍ２配合施用的麦粒干物质产量为７２２１ｋｇ／ｈｍ２，二种肥料的利用率分别是６２．４％和５５．６％，面粉（粗）蛋白质％（干）和湿面筋％分别是１０．１和２２．８，拉伸仪测定的拉力比值Ｒ５／Ｅ为１．８０。
Field experiments were conducted to study the effects of nitrogen and potassium fertilizers on the dry matter and nutrient contents of different parts of wheat crackers (Wanmai 18). Polynomial regression analysis was used to describe the effects of nitrogen and potassium fertilizers on the grain yield and the N content of dry matter Physiological effects of plant nutrition. Nitrogen fertilizer increased wheat grain yield and its phosphorus and potassium content. Potash fertilizer increased stool massively. The ratio of plant dry matter and nutrients, especially N and K2O, to wheat grain was significantly reduced, resulting in a decrease of N% in wheat grain. Increase and enhance. According to the regression equation of the polynomial, the dry matter yield of wheat with N application with 207.6kg / hm2 and K2O100.8kg / hm2 was 7221kg / hm2, the utilization rates of the two kinds of fertilizer were 62.4% and 55.6% ,% (Dry) and wet gluten (%) of flour (crude) were 10.1 and 22.8, respectively, and the ratio of tensile force R5 / E determined by the extensometer was 1.80.