在冬小麦生长发育过程中需施用氮磷化肥以平衡其营养,一般通过肥料试验和试验网来逐步解决合理有效用量问题,本研究则结合各项试验,采用植物化学分析方法来揭示植物氮磷营养水平的适宜性和施肥效果,同时提出氮磷营养综合诊断方法,这对指导当季追肥和下季施肥方案的合理制定有重要参考意义。 Nitrogen and phosphorous fertilizers need to be applied to balance their nutrition in the process of winter wheat growth and development. Generally, fertilizer and test nets are used to solve the problem of reasonable and effective dosage. In this study, phytochemical analysis was used to reveal plant nitrogen and phosphorus nutrition Level of suitability and fertilization effect, at the same time put forward nitrogen and phosphorus nutrition comprehensive diagnosis method, which is to guide the seasonal top dressing and next season fertilization program has an important reference value.