一看作物施肥 不同蔬菜作物对各种营养元素的需要量是不同的。如叶菜类施用氮肥效果明显,所以追施氮肥数量较多;果菜类与瓜类,除需氮肥外,磷钾肥需要量也较多,要注意施用有机肥并掺入适量的磷钾肥料;豆科蔬菜有根瘤菌,能通过固氮从空气中获得氮素,因此施肥量要少些。 A look at crop fertilization of different vegetable crops on the various nutrient requirements are different. Such as leafy nitrogen application is obvious, so chasing nitrogen fertilizer more; fruits and vegetables and melons, in addition to nitrogen fertilizer, phosphorus and potassium needs more, pay attention to the application of organic fertilizer and the incorporation of appropriate amount of phosphorus and potassium fertilizer; Legume vegetables rhizobia, nitrogen from the air through nitrogen fixation, so the amount of fertilizer to be less.