There are many reasons for the yellowing of kiwifruit leaves, which are mainly caused by iron deficiency, partial nitrogen fertilizer, water accumulation, and overplanting. In addition, some root diseases of kiwifruit, such as root rot, root knot nematode disease, etc., can also cause leaf yellowing. In the spring when the buds can be applied to recover the state of fertilization of iron fertilizers such as leaf green spirit, yellow leaf will be grams, bogey has been planted apples, pears, peaches and other perennial fruit trees and heavy soil to build a garden. It is also not possible to build a plot in a land that is prone to water accumulation. It is necessary to vigorously promote balanced fertilization techniques, and alkaline soils should pay attention to increasing organic fertilizers. At the same time, strictly control the output and maintain a strong tree
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