1、 Topping

The growth rate of sunflower is relatively fast, and pruning treatment should be started from the seedling stage. The time is in spring. When the leaves grow 8 to 10 pieces, pick the heart and directly cut off the top of the main stem, which will save a lot of nutrients and promote the growth of the main stem and lateral branches

2、 Prune branches

Prune the branches during the growth period, and cut off some long dense branches, pest branches, dead branches, bare branches, thin and weak branches, Cross branches, etc., so as to avoid unnecessary nutrient consumption, promote better ventilation and light transmission of the plant, better flowering and prolong the flowering period

3、 Trim leaves

Besides pruning the branches, we should also prune the leaves. It is found that diseased leaves, dead leaves or over dense leaves should also be cut off, which can promote the better growth of branches and leaves, reduce diseases and pests, make the plant shape more beautiful and improve the ornamental quality

4、 Precautions

When pruning, it should be carried out on a sunny day to avoid cloudy and rainy weather. Because pruning will have wounds. If it is cloudy and rainy, the wound will be stained with water, which is easy to cause infection and affect recovery. After pruning on a sunny day, the wound should also be disinfected. Don't worry about basking in the sun, put it in a cool place, and restore management after the wound is dried to avoid infection