People with hypertension, coronary heart disease and cerebral thrombosis and elderly patients with gastric cancer can't eat grass. Caotou is a common name for cauliflower in Jiangsu and Zhejiang provinces by people in Shanghai, Taicang and Changshu. Tridentate with leaves, such as inverted heart, slightly rounded apex or concave upper part of sawtooth, dark green leaf surface, short stem, long taproot and many branches. Grass head is rich in nutrition and can also be used as green manure, which has certain edible and medicinal value.

There are many ecological types of alfalfa in South China, which can adapt to the natural conditions in humid, semi-humid, arid and semi-arid areas. It has strong adaptability and can grow in arid and semi-arid environment, but it likes good drainage, fertile and loose soil conditions and warm and humid climate.

Planting method of grass head

5438+1sow alfalfa from the end of October to the beginning of June. Before sowing, the soil should be watered with bottom water, and the sowing amount per mu is 30-40 kg. But the seeds should be raked evenly to minimize exposure, and then the feet should be down-to-earth. After sowing, the border should be covered with two layers of sunshade net to prevent soil hardening when watering. After emergence, the sunshade net should be removed.

165438+1In late October, cover with plastic film in greenhouse, and spray 1000 times of thiophanate before covering with plastic film to reduce the occurrence of diseases. 1 month can be harvested. When harvesting grass heads, we should pay attention to keeping the stems and leaves short and tidy. Generally, attention should be paid to the occurrence of powdery mildew in the shed once every 15-20 days, ventilation should be strengthened, fertilizer and water should be managed in time, and chemicals can be sprayed with Gao or Fuxing.