The phenomenon of mango trees in big and small years is very serious, and the fruit setting rate is reduced, which affects the overall income of the whole year. Eliminating the phenomenon of big and small years is a necessary measure for high yield of mango, which can effectively improve the fruit setting rate.

First, fertilization

Apply 1 times quick-acting nitrogen fertilizer in bud development and full flowering period to promote bud development and improve fruit setting rate. The end of April and the beginning of May are the period of rapid growth of fruits, and also the period of rapid growth of new shoots in spring and summer. Fruit branches compete with fruits for nutrients, which is easy to cause fruit drop. Therefore, it is necessary to apply strong fruit fertilizer to reduce fruit drop.

Second, promote flowers.

In the flower bud differentiation stage, Wang Cuihua No.2 was brushed left and right, which transformed the growth function of fruit trees into reproductive function, adjusted the self-matching of ecological nutrition, controlled crazy bolting, and strengthened flowering genes and flower organ ovaries. Let the fruit trees blossom and bear fruit every year.

Third, solid fruit.

Spraying Zhuangguodiling can make fruit stalks thicker, increase nutrient transport in young fruit stage, and prevent fruit dropping, cracking, hard fruit and abnormal fruit. The fruit has bright colors, beautiful appearance and good taste.

Fourth, pruning and picking flowers.

Pruning and shaping after harvesting can delay flowering for half a month to 1 month to avoid low temperature period. In this way, the flowering period is prolonged, and the proportion of bisexual flowers and fruit setting rate can be improved by removing the core. After trimming and plastic surgery, large-area wounds should be coated with anti-corrosion film in time to promote the healthy healing of wounds.

Verb (short for verb) Cover with film.

If possible, plastic film can be used to cover mango trees that bloom in low temperature and rainy period, which can promote fruit setting.

Prevention and control of diseases and insect pests of intransitive verbs

Mango is vulnerable to pests and diseases during flowering and young fruit period. It is easy to cause serious flower drop and fruit drop after being damaged by mango transverse tail moth, short-headed cicada and longicorn. It is necessary to spray a variety of targeted drugs+new high-fat film for prevention and treatment.