Four steps of sunflower: pinching the head, frying the pot 1, and removing the seedings.
If the sunflower is going to burst, then after each sowing and propagation, when the seedling grows to about 5cm, you can pinch the upper end of the sunflower properly, and don't cut off its side branches, otherwise it will resist the normal growth of the sunflower and make it unable to bloom beautifully.
Step 2 prune into plants
Whenever the sunflower seedlings are denuded and waiting for the plants to grow into plants, then the part with too long upper end and the part with side branches that affect the ornamental value should be cut off every spring, so that the ornamental value of the sunflower can be higher, and a large loss of nutrients can be avoided, and more flowers can be promoted.
3, plastic pruning
If the sunflowers grow densely, then when the sunflowers pinch their heads and burst into pots, they can be thinned, all the withered branches and leaves can be cut off, and then trimmed once, so that soil nutrients can be concentrated and more new buds can be germinated.
4, disinfection treatment
Sunflowers need pruning in the midday sun every time. After pruning, the plants can be disinfected by spraying carbendazim, which can avoid the damage of bacteria to the pruning wounds of plants and make them wither and rot, which is not conducive to the normal growth of sunflowers. They should also be carefully maintained in the sun, and water and fertilizer should not be sprinkled on the leaves.