After the fruit is harvested, the walnut tree has a peak period of rapid growth and nutrient uptake. After the roots are fertilized, it will be good for early spring budding, good sprouting, and improved fruit set. The fertilization time is from late September to early November, which means that before fertilization after harvesting fruit, the fertilization amount accounts for 70% of the annual fertilization amount. The decomposed organic fertilizer is mainly used, and superphosphate and other compound fertilizers are added at the same time. Http:// Gynecologic Instruments,Gynecologic Examination,Vaginal Surgical Instruments,Hysteroscope Instruments ZHEJIANG SHENDASIAO MEDICAL INSTRUMENT CO.,LTD. , https://www.shendasiaomed.com