在小麦上施用磷酸二氢钾是一项较为成熟的农艺措施,可起到保粒增重、预防干热风的作用。但是如果不能做到科学施用,则增产效果不明显。我们从2001年以来,连续3年在武陟县进行了小麦施用磷酸二氢钾试验,平均增产20%以上,一般每亩投资15～20元,即可增产粮食价值100～150元,投资效 The application of potassium dihydrogen phosphate on wheat is a more mature agronomic measure, which can play the role of grain keeping and weight gain, preventing dry hot air. However, if you can not do scientific application, the yield increase effect is not obvious. Since 2001, we have conducted the wheat potassium dihydrogen phosphate test in Wuyi County for three consecutive years, with an average increase of more than 20%. Generally, we invest 15-20 yuan per mu to increase grain output by 100-150 yuan. The investment effect