Cultivation techniques and management methods of dandelion

Soil preparation and fertilization: it should be planted in loose and fertile sandy soil, and the base fertilizer can be applied with organic fertilizer and superphosphate. Treated seeds: soak in warm water of 50 ℃ and accelerate germination in an environment below 25 ℃. Sowing method: strip sowing or sowing can be used in the open field on the border or ridge, and the greenhouse can be planted in a greenhouse or small and medium-sized arch shed. Field management: ploughing, loosening soil and weeding. Fertilizer and water management: keep the soil moist and topdressing urea and potassium dihydrogen phosphate during growth.

1. Soil preparation and fertilization

1. Dandelion has strong adaptability, light and cold tolerance, heat resistance, cold resistance and barren resistance, and its disease resistance is also strong. generally, it rarely occurs diseases and insect pests, so it can be planted in most parts of our country.

2. It is suitable to be planted in loose, fertile, moist and well-drained sandy soil. During this period, the soil is deeply turned into 20-25cm, leveled and raked fine, and grown into a 10-20cm border with a width of 1.2-1.5m and a height of 15cm.

3. Or make a small ridge with 45cm width, apply organic fertilizer 4000-4500kg per mu, superphosphate 15kg, spread evenly into the border.

Second, deal with the seeds

The seeds were soaked in 50 ℃ warm water and germinated in the environment below 25 ℃. The seeds had no dormant period and could be sown in the open field at any time from spring to autumn and in the greenhouse in winter.

Third, sowing method

1. Sowing seeds in the open field

The main results are as follows: (1) Strip sowing or sowing can be used on the border surface, shallow horizontal trenches can be opened on the border surface according to the row spacing of 25-30cm, and the sowing area is about 10cm. After sowing, the soil is covered with 1cm, and then slightly suppressed, and the sowing rate is 50g per mu.

(2) it can also be sowed on the flat bed, and the seed consumption per mu is about 1000g. After sowing, the grass is covered with heat preservation and moisture, and the grass is removed after emergence, and the seedlings can emerge in about 7-10 days.

2. Sowing seeds in greenhouse

Seedlings can be raised and transplanted from late November to early December. if planting in greenhouse or small and medium-sized arch shed, agricultural film can be buckled from February to March in the second year, and new buds can be harvested in late March, when the market price is relatively high and income can be increased.

IV. Field management

In the growth process of dandelion, it is often necessary to plough and loosen the soil and weed every 10 days or so until the ridge is sealed. After the ridge is sealed, the weeds can be pulled manually, and the distance between seedlings and fixed seedlings is 3-5cm, 8-10cm and 6cm, respectively.

5. Fertilizer and water management

The main results are as follows: 1. After each seedling and harvest, quick-acting nitrogen fertilizer should be applied once combined with watering, no watering within 3-4 days after harvest to avoid rotting roots, and topdressing 1-2 times during the growth period, applying 10-14kg urea and 5-6kg potassium dihydrogen phosphate per mu each time.

2. Regular watering is needed to keep the soil moist. Autumn sowing requires freezing water before winter, overwintering fertilizer, organic fertilizer 2500kg and calcium superphosphate 20kg per mu of border. After turning green in spring, urea 10-15kg and calcium superphosphate 8kg can be applied combined with watering.

VI. Harvest season

1. Once harvested or not harvested in the first year, the outer leaves can be picked and eaten in batches at the seedling stage, or the leaves other than the heart leaves can be cut with a knife. From the second year, the leaves can be cut every 15-20 days. When the leaf base reaches 10-15cm, the whole plant can be cut once, tied up and listed on the market.

2. It can be harvested 2-4 times a year, that is, 1-2 times in spring and 1-2 times in autumn. If it is sold as medicinal materials, the whole grass with roots can be dug in late autumn and how to shake the soil and dry it in the sun.