如何提高肥料的利用率,以较少的肥料投入换取较高收益?最重要的要做到“五因”施肥,纠正盲目乱施的做法。 因土施肥:即依据土壤性质选择对路肥。沙质土壤宜施用速效性肥料,如碳铵、硫铵、过磷酸钙、硫酸钾、氯化钾等,并坚持少量多次的原则;粘质土土壤粘重,养分转化慢,在作物生长前期,以多施速效肥为主,后期由于温度高,养分转化释放加快,所以应少施或不施速效肥,主要通过锄划 How to improve the utilization of fertilizers, with less fertilizer investment in exchange for higher yields? The most important thing to do “five” fertilization, to correct blindly chaos practice. Due to soil fertilization: that is, according to the choice of soil on the road fat. Sandy soil should be applied quick-acting fertilizers, such as ammonium bicarbonate, ammonium sulfate, superphosphate, potassium sulfate, potassium chloride, and adhere to the principle of a small number of times; clayey soil sticky soil, slow nutrient conversion in crop growth The early stage, with more speed fertilizer, mainly due to the latter due to high temperature, nutrient release and release accelerated, so should be less or not Shi rapid fertilizer, mainly by hoe draw