How to prevent early flowering of mango by planting mango

Mango is an evergreen fruit tree, which consumes a lot of water and nutrients. in case of long-term dry weather and improper management of water and fertilizer, once the accumulated temperature is satisfied, flower buds differentiate quickly, early flowers will appear and are vulnerable to low temperature and cold weather; the flower organ can not pollinate and the fruit setting rate is low, resulting in reduced production or loss of harvest. So how to prevent mango from blooming early?

First, pruning branches: after harvest, cut off the old, weak, disabled, diseased, dense, shaded and crossed branches, at the same time cut off the remaining fruit axis, and then carry on the Daqing garden. This can promote the germination and ventilation of new branches, reduce the consumption of nutrients and the harm of diseases and insect pests, delay flower bud germination and control early flowering.

Second, apply enough fertilizer: mango will consume a lot of nutrients to blossom and bear fruit, and fertilizer should be re-applied after fruit harvest. The amount of fertilizer should account for about 80% of the annual amount, in order to meet the needs of restoring growth and expanding the crown. Nitrogen, phosphorus and potassium were mainly applied in a circular trench at the outer edge under the projection of the crown. Each plant was applied with compost, barnyard manure, farm manure or compound fertilizer of 40kg / kg or 7kg / kg respectively.

Third, prevent drought: mangoes are afraid of drought and waterlogging. This summer and autumn, there have been continuous severe droughts, flower buds differentiate quickly, and buds bloom ahead of schedule. In order to prevent the harm of drought, the topsoil of the orchard is ploughed and hoed to reduce water loss. The drought in autumn and winter lasts for a long time, and sufficient water should be drenched (irrigation if possible) once or twice a month. At the same time, drainage and irrigation ditches are opened around the fruit field to prevent heavy rain and waterlogging. Cultivate high soil at the base of the fruit tree to drain the waterlogging quickly. Before entering winter, pesticides should be sprayed once or twice to prevent diseases and insect pests.

4. High grafting: for those varieties that grow rapidly and are prone to early flowering in long-term high temperature weather, high grafting should be adopted. The whole plant was changed into an excellent late-maturing variety to postpone flowering and pollination and avoid the harm of low temperature and rain in early spring.

Fifth, adjust the florescence: remove the early inflorescence and make it bud and blossom again. To a certain extent, it can postpone the florescence and avoid the harm of cold. That is, when the inflorescence withdraws 8cm and 10cm, the flowers are picked. However, before the middle of February, picking flowers can only be carried out once or twice. If there are too many times of picking flowers and the flowers are weak, they will lose the ability of pollination.

6. drug flower control: when the flower bud appears, the flower control effect can be obtained by spraying paclobutrazol 350x or ethephon 1000 times every 12 to 15 days for 2 times.