Propagation methods of sunflower

1. Sowing seeds

The seeds of this flower are so small that it takes about 8400 seeds to make up a gram. The usual method is to sow them on a seedling plate and cover them with vermiculite slightly, or press them slightly after sowing to ensure adequate moisture. The temperature of germination is between 21 and 24. It takes about seven to ten days for the seedlings to emerge. The seedlings are very delicate. If they grow rapidly at higher temperatures, they can form thicker fleshy leaves. At this point, the seedlings can be directly moved to the basin, the required basin diameter of about 10 cm, each pot can be planted with three or five plants, this is easy to survive, the growth rate is also considerable. It is extremely tolerant to the soil, the general soil can adapt, and the sandy soil with good drainage is the most suitable. It can sow its own seeds for the purpose of reproduction.

In addition, it has a long time to grow, which is not a problem in spring, summer and autumn. The covered soil had better be thin, and of course it can grow without soil mulching. If it is in Sichuan Province, you can sow seeds in September or October. Before sowing, choose a mu of fertile land, and then dig a deep trench of about 1.3 meters. The soil planted in it should be very smooth and loose. Seeds need to be mixed with human and animal droppings to form seed ash. Five or six grams of seeds should be sown in one mu. When sowing, you should put some people's dung into the ditch, and then disperse the seed ash.

2. Cuttage

Cuttings are usually used for double petals, summer cuttings can use cut branches, wilting stems can also be used, and there will be buds after they live. When it grows, it does not need to be watered frequently, the fruit will explode when it is ripe, and the seeds will spread easily and need to be harvested in time. It is mainly seed reproduction, self-sowing ability is very strong. Since the emergence of a new variety, it has become more difficult to collect its seeds. Especially double, the seed will not bear seed after anthesis. Therefore, the cutting method can be used in the family.

3. Ramet

After the summer harvest, dig out the old bags, select the grown plants, and divide them into small bags. according to the row distance of 30 centimeters, the distance needed to plant plants is seven to ten centimeters. After that, we need to irrigate livestock feces.