80年代以来,我省在推广小麦叶面喷施磷酸二氢钾的同时进行了一些田间肥效试验,但试验结果很不一致。为了进一步明确小麦喷施磷酸二氢钾的效果及有效条件等,从而作出比较客观的评价,1988～1990年在全省6个点研究了不同时期,不同浓度和不同营养条件下喷施磷酸二氢钾对小麦生长发育、经济性状和产量的影响。 Since the 1980s, some fertilizer trials have been carried out in the province while promoting the application of potassium dihydrogen phosphate (KH2PO4) on wheat leaves. However, the test results are very different. In order to further clarify the wheat potassium dihydrogen phosphate spraying effect and effective conditions, and thus to make a more objective assessment of 1988 to 1990 at six points across the province at different times, different concentrations and different nutritional conditions spraying phosphate Effect of potassium and potassium on the growth and development, economic traits and yield of wheat.