Grasp the regular fertilization, the medicine material is excellent and high yield

According to the standardized production management requirements of Chinese herbal medicines, the pharmaceutical farmers must grasp the following points in production:

First, according to the characteristics of the varieties of fertilized Chinese medicinal materials due to their varieties and their stages of production and development, the number of nutrients required is also different. Perennial, especially rhizome medicinal plants, such as rhubarb, Codonopsis, Scrophulariaceae, peony, etc., mainly apply fully fermented farmyard manure, and increase the application of phosphorus and potassium fertilizer to meet the needs of nutrients throughout the same period. The whole plant Chinese herbal medicines can be appropriately added with nitrogen fertilizer. For Chinese herbal medicines of flowers, fruits and seeds, more phosphorus and potassium fertilizers should be applied.

Second, according to soil characteristics fertilization 1, sandy soil, such soil water retention and fertility performance is poor, to re-apply farmyard manure, such as cattle and sheep manure, compost, soil fertilizer, etc., and blend clay, thicken the soil layer, enhance Its water retention and fertilizer capacity. Top dressing should be applied in small amounts, avoiding the loss of too much use at one time.

2, the clay soil should be applied to the farmer's fertilizer, combined with the application of sand, furnace ash and slag, to loosen the soil, create permeable and ventilating conditions, and the quick-acting fertilizer should be applied with the top dressing in the early stage to facilitate the seedlings.

3, loamy soil This kind of soil has the advantages of sand and clay. It is the most ideal soil for most Chinese herbal medicine cultivation. Fertilization is combined with farmyard manure and suitable fertilizer, and it is reasonably applied according to the needs of its variety and variety of growth stages.

Third, according to the growth of seedlings in general, in the early stage of growth of Chinese herbal medicines, more nitrogen fertilizer should be applied, but the amount of use should be less, the concentration should be low; in the middle growth period, the concentration and dosage of nitrogen fertilizer should be increased appropriately; in the later stage of growth, phosphorus and potassium fertilizer should be used. Promote early fruit ripening and full seeds. The principle of fertilization of whole grass medicinal materials is "previously affordable, stable in the medium term, and not premature aging in the later period." Harvest medicinal plants of rhizomes and avoid applying nitrogen fertilizer later.

Fourth, according to the temperature situation fertilization in the low temperature season, early maturity, deep application of decomposing farmyard hypertrophy, in order to improve the ground temperature and preservation capacity, give full play to fertilizer efficiency. In the high temperature and rainy season, the fertilizer is decomposed quickly, and diligence is avoided as much as possible to reduce nutrient loss.

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