How to manage lychee after fruit harvest? Latest technical tutorial shared

Lychee is one of the seasonal fruits of summer, and management after the lychee fruit is ripe and harvested is extremely important. It is the key to cultivating fruiting branches for the coming year and is related to the yield and income of the coming year. So how should lychee be managed after fruit harvest? Let's take a look at the detailed introduction.

1. Pruning and orchard cleaning

After fruit harvest, pruning should be carried out in time to reasonably regulate the sprouting time of autumn shoots and cultivate strong fruiting mother branches. The degree of pruning should be based on the condition of the plant. Mature plants have large crowns and many branches, so heavy pruning is suitable, while young plants should be lightly pruned to expand the crown. When pruning, work from the inside outward and from large to small, mainly pruning diseased and pest-damaged branches, shaded branches, inner canopy branches, overly dense branches, and water sprouts, to reduce nutrient consumption of the tree body and lay the foundation for flower bud differentiation in the coming year. After pruning, thoroughly clean the orchard, and centrally burn the pruned branches and leaves, ground weeds, fallen leaves, and fallen fruits. Apply medicine to the wounds to promote healing.

2. Fertilization

After cleaning the orchard, fertilize in time. Generally, apply 1 kilogram of nitrogen and potassium fertilizer per plant, either by broadcasting after rain or by mixing with water and drenching, to restore tree vigor as soon as possible and promote autumn shoot growth. After the autumn shoots sprout, apply a second round of fertilizer to strengthen the autumn shoots. At this time, generally apply 1.5-2 kilograms of nitrogen-phosphorus-potassium compound fertilizer per plant, or apply 15-20 kilograms of decomposed organic fertilizer, placed in radial trenches under the canopy. After fertilizing, cover with soil in time so the fertilizer can be absorbed more quickly. After fruit harvest, spray foliar fertilizer once every 10-15 days to improve leaf nutrition and promote strong autumn shoots.

3. Drainage and irrigation

Summer and autumn are high-temperature seasons, and they are also times when rainstorms occur frequently, so drainage measures should be taken during rainstorms to avoid water accumulation affecting root

growth. At the same time, when rainfall is low and the soil is dry, attention should be paid to irrigation to avoid water shortage and drought stress on the plants, which would affect the sprouting of autumn shoots and the normal growth and development of the tree body.

4. Pest and disease control

The high temperature and frequent rain in summer are peak periods for pests and diseases, and when autumn shoots sprout, the resistance of the plants is relatively weak, and tender shoots and tender leaves are extremely vulnerable to pests and diseases. Therefore, pesticides should be sprayed in time for prevention to ensure the normal growth and development of autumn shoots. After fruit harvest, pests and diseases include stink bugs, leaf-rolling moths, longhorn beetles, moths, and others, and control measures should be well implemented.

The above is an introduction to management techniques for lychee after fruit harvest. We hope it can help you. To learn more related knowledge, please stay tuned to us.