为了比较进口肥料与国产肥料肥效 ,了解增施钾肥与小麦产量的关系 ,引导农民科学种田 ,于 2 0 0 1年安排了该试验。1　材料与方法(1)　供试土壤试验地为潮土 ,地势平坦 ,有水浇条件 ,前茬为玉米 ,产量 5 2 5 0 kg/hm2。整地前取耕层 0～ 2 0 cm土壤进行化验 ,结果见表 1。表 1? In order to compare the efficiency of imported fertilizers with that of domestic fertilizers and understand the relationship between increased potassium fertilizer and wheat yield and to guide farmers in scientific farming, the trial was scheduled for 2001. 1 Materials and methods (1) The test soil test for the Chao soil, flat, water conditions, the former crop of corn, yield 5250kg / hm2. Before soil preparation, soil samples were taken from 0 ~ 20 cm soil layer. The results are shown in Table 1. Table 1?