The fertilization of the litchi fruit tree is divided into two main phases in the annual cycle. The first is the harvest of fruit before and after the harvest to the shoot of shoots and the result of the mother branch. This stage consumes more nutrients due to fruiting, in order to guarantee the restoration of the tree vigor as soon as possible. Withdrawing the shoot normally, it is generally required to apply a quick-acting fertilizer before the fruit is harvested. After each autumn shoot, one or two times of fertilizer should be applied to make it draw a strong autumn shoot. The fast-acting nitrogen, phosphorus, and potassium fertilizers may be applied during the attack, but the soil should not be fertilized after the last autumn shoot turns green, and should not be applied to the farm fertilizer too early from October to December. Otherwise, the winter shoots will be extracted. The farmer's home fertilizer in January was more reasonable. After each new leaf turns green, foliar fertilizers (such as complex nucleotides, etc.) can be sprayed to make branches and leaves more robust. The other stage is flowering and fruit setting period, should pay attention to reasonable fertilization to flower and fruit protection, flowering period to phosphorus, potassium fertilizer, less nitrogen fertilizer, to avoid the occurrence of "shooting" and spring shoots, affect the flower The quality of spraying a cytokinin such as Litchi Paulownin 15 days before flowering can make flower spikes robust and improve the quality of flowers; in the fruit setting period, especially in the later period of fruit development, the rapid growth of pulp consumes a lot of nutrients, so that The tree's nutrition is seriously deficient, and timely addition of tree nutrients will play an important role in strengthening the fruits and reducing pre-harvest fruit drop.