在农业生产中,施肥是必不可少的环节,但由于有些朋友不了解化肥的性质,在施用过程中存在一些错误做法,致使化肥利用率低,甚至给农作物造成了肥害而导致减产,为此科学施肥应注意以下问题:1.拌种。用过磷酸钙拌种时,由于磷酸钙含3.5%~5%的游离酸,用其拌种会降低种子发芽率和出苗率,所以作种肥的, Fertilization is an indispensable link in agricultural production. However, since some friends do not understand the nature of chemical fertilizers, there are some erroneous practices in the application process that lead to low fertilizer utilization rates and even crop fatalities that lead to a decrease in production This scientific fertilizer should pay attention to the following questions: 1. Seed dressing. With superphosphate seed dressing, since calcium phosphate containing 3.5% to 5% of the free acid, with its seed dressing will reduce the seed germination rate and emergence rate, so as seed fertilizer,