Answer: The recent jujube tree management should focus on the protection of leaves and basal fertilizer. Once a disease is found, the fruit grower should choose to spray the fungicide on the tree body, prevent the disease from causing leaves to fall off in advance, and it is not conducive to flower bud differentiation of fruit trees and fruit setting in the coming year. In addition, to apply basal fertilizer, basal fertilizers are mainly organic fertilizers, supplemented by compound fertilizers. Nucleic Acid Extraction System Nucleic Acid Extraction Kit,Nucleic Acid Purification Kit,Nucleic Acid Extraction System,Nucleic Acid Extraction Instrument HANGZHOU DIAN BIOTECHNOLOGY CO., LTD. , https://www.dianbiotech.com