叶面追肥又叫根外追肥，它是把肥料稀释后直接喷施到叶面上的一种方式。它的好处是肥料溶液直接喷施到叶面上，便于叶面迅速吸收运转到子粒中去，可以避免肥料的流失和土壤的固定作用。由于养分是直接被茎叶吸收，可以解决水稻后期根系衰老，肥料供不应求的矛盾，延长叶片寿命? Leaf top dressing, also known as top dressing, it is a method of spraying fertilizer directly to the foliage. Its advantage is that the fertilizer solution is directly sprayed onto the foliage to facilitate rapid absorption and operation of the foliage into the granule, thereby avoiding the loss of fertilizers and the fixing effect of the soil. Because nutrients are directly absorbed by the stems and leaves, you can solve the root late rice aging, fertilizer supply shortage, to extend the life of leaves?