Should litchi be cut first or controlled first?

Timely and moderate girdling of litchi is a technology to control shoots, promote flowering, improve nutrient supply of trees, increase fruit setting rate and increase litchi yield. Circumcision can effectively control the occurrence of winter shoots, and the temperature in Gaozhou is still above 20℃ in the middle and late June of 65438+ 10. When the fertilizer and water conditions are sufficient, litchi is easy to shoot in winter, which has a great influence on the flower bud differentiation of litchi. However, through girdling, the transportation route in the tree body is cut off, and fertilizer and water cannot be transported into the tree body, so that winter bamboo shoots are extremely difficult to germinate. Therefore, ring cutting is an effective measure to control winter shoots.

Deep hoeing to control winter shoots.

After the last autumn shoots of litchi are ripe, the roots are cut off by deep hoeing combined with cleaning the garden. On the tree tray, hoe the topsoil 30 cm away from the trunk to the outside of the crown, from shallow to deep, and cut off the floating roots on the surface. The deepest part of the crown in drip line can reach about 20 cm. But be careful about the old and weak trees, and don't dig too deep, so as not to hurt the roots too much and cause the trees to weaken.

You can also dig a 1 annular ditch with a depth of 30cm and a width of 20cm around the crown drip line, cut off some horizontal lateral roots, and backfill the soil after 2-3 weeks. At the same time, spraying lime powder, calculated as 0.5- 1 kg per 50 kg fruit, can control the root system to absorb fertilizer and water and inhibit the growth of winter shoots. When operating, pay attention to only damaging the root after grade 3-4.