Mango's fertilizer is mainly divided into the following periods:
       

       1, flower fertilizer
       One month before flowering is the flower bud differentiation stage of mango, and fertilization before flower bud differentiation can promote flower bud differentiation. Fertilizer should be based on available nitrogen and potassium fertilizers. The dosage is about 20% of the annual dosage, and 0.3 to 0.5 kg of compound fertilizer per plant.
       

       2, strong flower fertilizer
       The mango tree has a large amount of flowering and consumes a lot of nutrients. The quick-acting nitrogen fertilizer should be applied once during the flowering period. Fertilization time should be based on tree potential, plant status, and weather. However, it is necessary to fertilize at the right time, and it is advisable to start fertilization when 50% of the last stage shoots of the plant are budded. Otherwise, if the tree is booming, the temperature rises, and fertilization too early can induce excessive vegetative shoots or mixed flowering branches to reduce the amount of flowers. Zhuanghuafei can be used with compound fertilizer. Each compound is applied with 0.1~0.15 kg of compound fertilizer. It can be combined with foliar application of 0.1% boron fertilizer and 0.1%~0.2% potassium dihydrogen phosphate solution.
       

       3, strong fruit fertilizer
       About 30 days after flower disappearance is the period of rapid growth and development of fruit. During the rapid growth of young fruit, it is necessary to pursue strong fruit fertilizer to meet the nutrient needs of fruit development. Generally, about 0.5 kg of compound fertilizer is applied per plant. It can be combined with foliar fertilization and sprayed with potassium dihydrogen phosphate solution.
       

       4, before and after fruit picking
       Mango results in large amounts and consume more nutrients. For the first time, the fertilizer can be applied 0.2-0.3 kg per plant and 0.1-0.2 kg of potassium chloride before and after fruit picking, which promotes the recovery of the tree potential and sprouts the autumn shoots as soon as possible. The second fertilization was carried out when the last tip began to turn green, and the weeds were buried in the soil. Each plant applied 25-50 kg of organic fertilizer and 0.5 kg of ternary compound fertilizer. The 0.2% potassium dihydrogen phosphate solution can be sprayed 1 to 2 times in combination with the foliage.