High yield cultivation of Coptis chinensis

Coptis chinensis grows in the zone of 900-1500m above sea level, likes yin and little yang, needs rich water and nutrients, and can be harvested 4-5 years after planting.

1. Choose strong seedlings. Coptis chinensis seedlings can be cultivated or purchased by themselves. generally, the disease-free tender seedlings and strong seedlings of 1 ~ 1.5 years old are the best, and the yield is the best. the seedlings are old and weak seedlings of more than two years old, and the yield is low after planting, so it is not suitable to choose. Coptis chinensis production land should choose raw wasteland is the best, because raw wasteland has less weeds and diseases and insect pests, land preparation is basically the same as seedling land, and trees can be left for shade.

2. Carefully plant seedlings. Coptis chinensis seedlings can be planted all the year round, but spring and autumn is the best season. The planting method is that each plant is planted with a nest with a row spacing of about 15cm, square planting, with fine soil pressing the whisker root, and the seedling core is flush with the soil surface. Do not plant too deep.

3. Weeding and sowing. The planting management of Coptis chinensis is the main guarantee for high yield, weeding and seedling protection, weeding three times a year in spring, summer and autumn, and mainly covering soil in winter. Every year, Coptis chinensis has new tillers and a number of new buds appear on the soil surface, and soil mulching can promote its rhizome to thrive. The method is to evenly sprinkle fertile soil on the box of Coptis chinensis by digging the box ditch and the edge of the ground. Before covering the soil, apply base fertilizer once, use plant ash 50kg and compound fertilizer 50kg per mu, and then cover the soil.

4. Topdressing to prevent disease. Spring and autumn is the peak growth period of Coptis chinensis, and it is also the period of maximum nutrient demand. Urea is applied once in autumn, and 5kg is used every mu. Two years after planting, Coptis chinensis land should be fertilized with human and animal fertilizer to promote its root growth.