Evening primrose is a kind of evening primrose in Myrtaceae. Strong adaptability, acid and drought tolerance, lax requirements for soil, generally neutral, slightly alkaline or slightly acidic soil, well-drained and loose soil can grow, and roots are prone to disease in places where the soil is too wet.
The north is an annual plant, and the south of Huaihe River is biennial plants. This is the most important nutritional drug discovered in this century. Can be used for treating various diseases and regulating lipid substances in blood.
Extended data:
Evening primrose can be sown in spring and autumn, and the autumn sowing period is from mid-June to before freezing. If it snows heavily in winter, autumn sowing is better than spring sowing, and light snow in winter is easy to cause lack of seedlings and broken strips.
Before sowing wheat, the soil is frozen for 2 ~ 3 cm, and spring sowing can be carried out. Because of the small sowing amount, 60 kg diammonium seed dressing was used as filler per hectare.
If it is not enough, a certain amount of dry sawdust or fried wheat and rape can be added for sowing, and the sowing depth is 1~2cm, which can be suppressed in time after sowing.
Baidu encyclopedia-evening primrose