Long-acting fertilization method for carya illinoensis on steep slope

The invention discloses a long-acting fertilization method for carya illinoensis on a steep slope. The long-acting fertilization method comprises the following steps: digging a horizontal fertilization ditch with the same length as the diameter of a tree crown at a position above a tree body, padding a plastic film in the ditch, applying a fertilizer into the fertilization ditch with the bottom part padded with the plastic film, covering the fertilizer with litters like weeds with a thickness of 10 cm, then covering the litters with a layer of soil, and allowing the fertilizer to naturally overflow and flow to a root area to be absorbed by a root system after being dissolved into a liquid during manual watering or raining. Thus, the labor cost can be effectively saved; and a good fertilization effect is achieved. 本申请公开了一种用于陡坡地的薄壳山核桃长效施肥方法，通过在树体上方，开挖与树冠直径同长度的水平施肥沟，沟内垫塑料薄膜，将肥料施入底部垫有塑料膜的施肥沟内，肥料上覆盖10cm厚的杂草等枯落物，之上再覆盖一层土壤，每逢人为浇水或下雨时，肥料溶解成液体后自然溢出，流到根区，让根系吸收，能有效节约人工成本，实现较好的施肥效果。