Excessive dependence on hormones Some jujube farmers in order to make winter dates early enlargement, morning color, morning market, excessive abuse of swelling hormones, mitogens and other varied hormones, although the fruit becomes larger, but the maturity period has been postponed, the quality has declined. Correct practice: spraying the biological expansion products registered by the Ministry of Agriculture in the expansion period of winter dates, such as Green Sea Jinlong Brassinolide, Zunpin amine fresh fat and other products, quality assurance, high safety factor, and strictly control the use of Times and doses. There is also a process of digestion, absorption, and utilization after spraying the foliar fertilizer and the winter jujube spray. There are also safety intervals and the number of uses required. Some fruit growers sprayed foliar fertilizers on winter jujube trees in order to quickly swell fruits, which promoted sprouting and caused fertilizer damage. Correct practice: The safety interval of foliar fertilizer is 7-10 days, and the spray dose should also be strictly followed in accordance with the manufacturer's instructions and precautions. Do not overdosage or use blindly at safety intervals. Remorse. Fertilizer parts improper fertilization too far, the absorption of root absorption nutrients, will not achieve the effect of pounding, can also lead to winter jujube malnutrition, tree vigor, leaves yellow, and even fruit drop phenomenon. If the fertilization is too close, not only the effect of top-dressing expansion will not be achieved, but also artificially cut off the large roots of the winter jujube tree, causing root rot. Correct practice: Whether it is topdressing or applying basal fertilization, it should be planted in a downward vertical position at the top of the canopy, or in order to ensure the absorption of nutrients by winter jujube trees and meet the needs of large fruit. 7 Inch Face Access Control,Face Recognition Access Control With Fingerprint,7 Inch Ultra Thin Face Recognition Terminal,Dual Camera Recognition Access Control System Chongqing Huifan Technology Co., Ltd , https://www.hfsecuritytech.com