叶面追肥也叫根外追肥,就是把肥料稀释后,直接喷到作物叶面上的方法。采用叶面追肥可以避免肥分流失和土壤固定而损失;由于直接喷到叶面上,氮磷养分直接被茎、叶吸收,可以解决水稻后期根部衰老,肥料供不应求的矛盾;延长叶片 Leaf top dressing is also called root top dressing, is the fertilizer diluted directly sprayed onto the foliage of the crop. The use of foliar fertilizer can prevent loss of fertilizer and soil fixed losses; as a direct spray to the foliage, nitrogen and phosphorus nutrients directly stems and leaves absorbed, you can solve the root late late rice, fertilizer in short supply contradictions; extend the leaves