1根外追肥根外追肥不光适用于生长前期,在生长后期也十分必要。采果后每隔15d在叶背面喷0.5%～0.67%的尿素加0.2%～0.33%的磷酸二氢钾或0.2%的过磷酸钙,可以提高叶片的光合能力,增加枝条营养。 1 root top dressing fertilizer outside the top not only suitable for the growth of the early stages of growth is also very necessary. Spraying 0.5% ~ 0.67% of urea, 0.2% ~ 0.33% of potassium dihydrogen phosphate or 0.2% of superphosphate on the back of leaves every 15d after picking, can improve the photosynthetic capacity of leaves and increase the nutrition of branches.