Cultivation experience of Angelica dahurica

The climate of the whole country is abnormal this spring and summer, with a large area of drought and a long duration. The production of Angelica dahurica has been affected to a certain extent. At present, the volume of new goods on the market is small, the sources of goods are mostly acquired by drug vendors in producing areas, and the trend of old goods has also changed from flat to smooth. Baizhi prefers a warm, humid climate and a sunny environment. Angelica dahurica

First, planting techniques:

1. Soil preparation and sowing: turn the soil more than 30 cm deep, combined with soil preparation, apply 2500 kg of compost per mu and turn it into the soil as base fertilizer. Flatten the rake and make it into a high bed 1.3 meters wide, with drainage ditches all around.

2. Sowing: sowing from early September to late October, which is suitable for sowing after the End of Heat and before White Dew. It is appropriate to use direct seeding and hole sowing, digging holes according to row spacing of 30-35 cm and plant spacing of 23-27 cm, hole depth of 8-10 cm, digging and shoveling the bottom of the hole, and then applying appropriate amount of fire soil ash and human feces and urine to evenly make base fertilizer, about 250-300 kg per mu. Hole sowing, seed consumption of about 1.5 kg per mu, can also be sown or sowed. The row spacing of strip sowing is about 30 cm, the width of ditch is 10 cm, and the depth is 7-9 cm. The seeds are evenly sowed into the ditch with 2 kg of seed per mu. After hole sowing or strip sowing, thin human and animal dung water is immediately irrigated and covered with fire soil ash. After steaming, the grass on the border can be covered and moisturized for 15-20 days.

II. Field management:

1. Weeding and seedling intercropping. The height of the seedlings in the year of emergence is about 5 cm. For the first time, there were 5-7 seedlings per hole, 1 seedling every 3-5 cm, 3-5 seedlings per hole and 1 seedling every 7-9 cm when the seedling height was about 10 cm. In the early spring of the following year, the seedlings were fixed for the last time in late February, with 3 seedlings per hole sown in a triangle, and 1 seedling every 10-15 cm, according to the principle of keeping small and large, so as to prevent Angelica dahurica from overgrowing, moss and blossom. After each seedling, intertillage and weeding were carried out for 1 time.

2. Topdressing. Generally, topdressing was carried out for 4 times, and the first and second times were combined with inter-seedling, each time 1500 kg of human and animal dung water was applied per mu, and after the third time, about 2500 kg of human and animal dung water was applied per mu, 30 kg of calcium superphosphate was added, and the fourth time after Qingming Festival, 3000 kg of human and animal manure water per mu was applied, and then 150 jin of fire and soil ash was added, and then sprinkled on the border surface and covered with soil.

3. Irrigation and drainage. Keep the soil moist in the field and irrigate in time in case of drought. If there is too much Rain Water, you should drain the water in time.

4. removing moss seedlings: from May to June of the following year, a small number of plants grow too vigorously to sprout and blossom, which should be pulled out in time.