1、 Sowing time of sunflower seeds
Sunflower sowing can be carried out in spring, summer and autumn, as long as it avoids the cold winter. Sunflower likes a warm environment. The temperature in winter is too low. Even if it can emerge, it is easy to frostbite the seedlings. However, the best sowing time is between March and April in spring and August and October in autumn. Because the climate temperature in these two time periods is more appropriate, after planting, sunflower seeds can germinate better, and seedlings can also grow vigorously, which can promote its growth more vigorously p>
2、 Sowing method of sunflower seeds
1. Prepare pot soil: sunflower likes a soft, breathable and fertile soil environment. When sowing, prepare suitable soil in advance. Garden soil, river sand and an appropriate amount of composted soil can be mixed and prepared. The prepared soil shall be disinfected. In addition, before sowing, water should be poured in advance to wet the soil p>
2. Treatment of seeds: it is recommended to soak the seeds before planting sunflower, so that the seeds can absorb enough water, which can promote its faster germination and greatly improve the emergence rate. Just soak its seeds in clear water, soak them for a day, and then take them out and dry them in the shade p>
3. Sowing into the soil: after the soil is ready and the seeds are soaked, sowing can be carried out. The sowing method is very simple. The seeds of sunflower are evenly scattered on the soil surface, and then covered with fine soil again. After sowing, just put it in a ventilated and astigmatic environment p>
4. Later maintenance: the seeds of sunflower can sprout only at a temperature of more than 18 degrees. Therefore, good temperature control is needed after sowing. If the temperature is too low, it can be covered with plastic film to promote the germination of seedlings as soon as possible p>