1, fertilizer and water management: Winter is the long-hair period of mango tree's autumn shoot germination, so it is necessary to do a good job of water and fertilizer management and cultivate strong autumn shoot as the fruiting mother branch in the coming year. Cooperate with watering, decomposed organic fertilizer, compound fertilizer, urea, etc. It can effectively promote autumn growth, inhibit winter bud germination and promote flower bud differentiation.

2. Plastic pruning: The pruning of mango trees in winter is mainly to remove pests and diseases, too dense branches, too flourishing branches and too many winter shoots. So as to keep the tree vigor and concentrate nutrients to cultivate strong mother branches. And cut a circle, in order to make the vegetative growth of mango trees change to reproductive growth, control the crazy growth of branches, improve the quality of winter dormancy, and let more flowers and fruits sit in the coming year.

3. Garden cleaning and disease prevention: thoroughly remove weeds, fallen leaves and dead branches. And take it out of the field for destruction, which can effectively reduce the source of garden overwintering pests and diseases. Deep ploughing and soil preparation, tree trunks whitewashed and sprayed all over the garden, to protect trees from disinfection and freezing, to prevent overwintering viruses from landing on trees and to protect mango trees from overwintering safely.

Extended data:

Mango trees naturally bloom from 65438+February to the following year1-February, sometimes earlier than165438+1October or later than the following March, and the peak flowering period is around the Spring Festival. It takes 15-25 days for an inflorescence to bloom from the first flower to the whole inflorescence, and the flowering period of a tree is about 50 days.

Mango flowers have bisexual flowers and male flowers, and bisexual flowers have normal stamens and pistils, which can be pollinated and fertilized normally. Male flowers have no pistil and cannot bear fruit after flowering. Most cultivated varieties have bisexual flowers accounting for more than 15%. It takes about 1.5 days for a flower to diffuse from petals to dry stigma.

After fruit development, flowering and fertilization, the ovary began to expand, and it increased rapidly after about 1.5 months, but it grew slowly or did not grow before 10- 15 days of fruit picking. At this time, it is mainly thickening, enrichment and weight gain. It takes 85- 1 10 days for early-maturing varieties, 100- 120 days for middle-maturing varieties and 150 days for late-maturing varieties.