Post-harvest management techniques of litchi

Litchi is one of the summer fruits. Management is very important after litchi is ripe and harvested. It is the key to the cultivation of fruiting branches in the coming year, which is related to the yield and income in the coming year. So how should litchi be managed after fruit harvest? Let's take a look at the detailed introduction.

1. Pruning and clearing the garden

It is necessary to prune in time after fruit harvest, reasonably regulate the germination time of autumn shoots, cultivate strong fruiting mother branches, and the degree of pruning should be carried out according to the time of the plant. adult plants have large crowns and many branches, so they should be heavily pruned, while young plants should be trimmed lightly in order to expand the crown. When pruning, from the inside to the outside, from large to small, mainly trim off disease and insect branches, hidden branches, inner chamber branches, over-dense branches and overgrown branches, so as to reduce the nutrient consumption of trees and lay the foundation for flower bud differentiation in the coming year. After pruning, the garden should be fully cleared, the pruned branches and leaves and ground weeds, fallen leaves and fruits should be burned, and the wound should be smeared to promote healing.

2. Fertilization

Fertilizer should be applied in time after clearing the garden. Generally, 1 kg of nitrogen and potassium fertilizer is applied to each plant, which can be washed with water after rain to restore the tree potential as soon as possible and promote autumn shoots. After the autumn shoot germinates, the second fertilizer is applied to strengthen the autumn shoot, at this time, 1.5-2kg of nitrogen, phosphorus and potassium compound fertilizer is applied to each plant, or 15-20kg of rotten organic fertilizer is applied under the crown, and the soil should be covered in time to facilitate faster renewal and absorption of fertilizer. Foliar fertilizer should be sprayed every 10-15 days after fruit harvest to improve leaf nutrition and promote strong autumn shoots.

3. Drainage and irrigation

Summer and autumn is a high temperature season, and it is also caused by frequent torrential rains, so drainage measures should be taken during heavy rains to avoid stagnant water affecting the roots.

Growth. At the same time, we should pay attention to watering when the rainfall is low and the soil is dry, so as not to affect the germination of autumn shoots and the normal growth and development of trees.

4. Pest control

The high temperature and rain in summer is the period of high incidence of diseases and insect pests, but when the autumn shoots germinate, the plant resistance is weak, and the tender shoots and leaves are easily harmed by diseases and insect pests. Therefore, it is necessary to spray pesticides in time to ensure the normal growth and development of autumn shoots, and the diseases and insect pests after fruit harvest include stink bugs, Spodoptera litura, longicorn beetles, moths and so on.

The above is the introduction of litchi post-harvest management technology, hope to help you, want to know more related knowledge, please pay attention to us.