cultivation techniques
Lotus root is sweet and crisp, which can be eaten raw or made into various delicious dishes, and its medicinal value is still high. Lotus root is an aquatic plant, also known as pond lotus and hibiscus. It likes warm and humid climate and needs plenty of sunshine, fertile and deep soil and an environment with adjustable water level. Its fruit is called lotus, its rhizome is called lotus root, and its flower is called lotus. The main edible part is rhizome. Lotus root is rich in nutrition, can be cooked and fried, and the processed products can be made into lotus root powder, candied fruit and other foods, which has a good development prospect. Today, let's share the key points of lotus root cultivation technology!
First, choose excellent varieties
Most of them choose local lotus roots or early-maturing series, which are suitable for stewing.
Second, the whole field, fertilization
Lotus root is suitable for cultivation in clay loam, lake soil and yellow soil with deep and fertile mud layer and rich organic matter. Generally, it is combined with ploughing and soil preparation, and farmyard manure of 2500 ~ 3000 kg, general compound fertilizer of 60 ~ 80 kg and quicklime of 50 ~100 kg are applied per mu.
Third, sowing and planting density
Generally, it can be directly broadcast in the lotus field according to the row spacing of 1.3× 1.7 meters, and the seed used per mu is150 ~ 250 kg. When planting, the lotus root head should be tilted outward, downward and slightly, and buried 3 ~ 4 cm deep in the soil. Strip planting and pond planting can be used. Lotus seeds are generally required to be dug, selected and planted.
Fourth, field management
1, weeding and picking leaves and flowers: about one month after planting, remove dead leaves when floating leaves are dying. Before sealing the lotus leaves, combine topdressing and weeding, and walk on both sides of the rolled leaves when weeding. Lotus buds or flowers will consume a lot of nutrients, but the rain will easily lead to rotten lotus roots after picking, and the flower branches are often bent without picking.
2. Top dressing for three times: the first vertical leaf fertilizer: when 3 ~ 5 vertical leaves appear in the field, 25 ~ 30 kg of high nitrogen and phosphorus compound fertilizer is applied per mu; For the second time, when the leaves are planted in the field, 30 ~ 35 kg of high nitrogen and potassium compound fertilizer is applied per mu; Third lotus root fertilizer: when the terminal leaves appear, apply high-potassium compound fertilizer15 ~ 20kg or pure potassium fertilizer10 ~15kg per mu.
3. Adjust the water level: from planting to germination, irrigate shallow water about 5 ~10 cm to increase the ground temperature and facilitate the emergence of seedlings; With the growth of vertical leaves and branches, the water layer is gradually deepened to15 ~ 20 cm; Shallow water should be irrigated during the lotus root period and before harvesting.
4. Straighten the lotus root head: In June, the lotus root vine grows rapidly around. It is necessary to manually straighten the vine. At noon, dig the mud and pull up the lotus root vine, turn your head to the blank and bury it in the soil.