Foliar topdressing of Chinese medicinal materials is a fertilization method in which fertilizer is dissolved in water and sprayed on the foliage. This method is simple, convenient, low cost and quick, and has a positive effect on increasing the yield and quality of Chinese herbal medicines. However, because the medicinal materials directly affect the health of patients, they should be very cautious in the choice of fertilizers. It is best to use organic fertilizers and biological fertilizers.
First, seaweed biological fertilizer is the first choice. Seaweed fertilizer is the representative of the world's advanced fertilizers. It has incomparable advantages over chemical fertilizers in terms of stress resistance, natural activity, non-toxicity and pollution-free. Jinbao seaweed biological fertilizer is to add a large number of effective strains on the basis of seaweed fertilizer, use the decomposition of microorganisms, activate the soil and carry out biological nitrogen fixation and phosphorus release. It is imported from Australia and is isolated and purified from marine organisms by using the latest international microbial engineering technology and technology. It is a comprehensive, efficient, non-toxic and non-polluting nutrient. The natural high-concentration and broad-spectrum type of the latest generation of liquid microbial fertilizer is the fertilizer of choice for the production of Chinese herbal medicines.
Second, the types of Chinese herbal medicines and fertilizers suitable for topdressing. 1. Rhizome and roots such as Salvia miltiorrhiza, Atractylodes, Aconite, Pinellia, etc. Leaf top dressing is mainly phosphorus and potassium fertilizer. Water can be sprayed with 0.4% potassium dihydrogen phosphate or 2% calcium perphosphate leaching solution and 4% ash ash leaching solution. The spraying time is generally in the middle and late growth stages. 2. The fruit kernels such as burdock, coix seed, etc., the leaf top dressing is mainly composed of nitrogen, phosphorus, potassium mixed liquid or multi-component compound fertilizer. Use 1% urea plus 2% calcium perphosphate leaching solution plus 1% potassium sulfate mixture, or spray with 0.2% to 0.3% potassium dihydrogen phosphate. It is generally better to spray once or twice in the middle and late growth stages. 3. Whole grasses and flowers such as peppermint, chrysanthemum, safflower, saffron, etc., the common concentration of foliar topdressing is 1% to 2% of urea, spraying 50kg~60kg per acre, spraying once in the whole growth period~ 3 times.
Third, Chinese herbal medicine foliar topdressing should pay attention to matters. 1. The time of application should be appropriate. Foliar topdressing is generally carried out in the morning on a sunny day, and it cannot be sprayed on rainy days. In case of rain within 3 hours after spraying, it should be refilled after the weather is fine, but the concentration should be appropriately reduced. 2. The concentration of fertilizer should be appropriate. When the concentration of topdressing is too large, it will not only increase the cost, but also cause fat damage and cause losses. Special attention should be paid especially when applying micro-fertilizers. 3. Fertilizer should be applied reasonably. Spray the phosphorus-containing fertilizer such as superphosphate, and take the supernatant after soaking for 24 hours.
First, seaweed biological fertilizer is the first choice. Seaweed fertilizer is the representative of the world's advanced fertilizers. It has incomparable advantages over chemical fertilizers in terms of stress resistance, natural activity, non-toxicity and pollution-free. Jinbao seaweed biological fertilizer is to add a large number of effective strains on the basis of seaweed fertilizer, use the decomposition of microorganisms, activate the soil and carry out biological nitrogen fixation and phosphorus release. It is imported from Australia and is isolated and purified from marine organisms by using the latest international microbial engineering technology and technology. It is a comprehensive, efficient, non-toxic and non-polluting nutrient. The natural high-concentration and broad-spectrum type of the latest generation of liquid microbial fertilizer is the fertilizer of choice for the production of Chinese herbal medicines.
Second, the types of Chinese herbal medicines and fertilizers suitable for topdressing. 1. Rhizome and roots such as Salvia miltiorrhiza, Atractylodes, Aconite, Pinellia, etc. Leaf top dressing is mainly phosphorus and potassium fertilizer. Water can be sprayed with 0.4% potassium dihydrogen phosphate or 2% calcium perphosphate leaching solution and 4% ash ash leaching solution. The spraying time is generally in the middle and late growth stages. 2. The fruit kernels such as burdock, coix seed, etc., the leaf top dressing is mainly composed of nitrogen, phosphorus, potassium mixed liquid or multi-component compound fertilizer. Use 1% urea plus 2% calcium perphosphate leaching solution plus 1% potassium sulfate mixture, or spray with 0.2% to 0.3% potassium dihydrogen phosphate. It is generally better to spray once or twice in the middle and late growth stages. 3. Whole grasses and flowers such as peppermint, chrysanthemum, safflower, saffron, etc., the common concentration of foliar topdressing is 1% to 2% of urea, spraying 50kg~60kg per acre, spraying once in the whole growth period~ 3 times.
Third, Chinese herbal medicine foliar topdressing should pay attention to matters. 1. The time of application should be appropriate. Foliar topdressing is generally carried out in the morning on a sunny day, and it cannot be sprayed on rainy days. In case of rain within 3 hours after spraying, it should be refilled after the weather is fine, but the concentration should be appropriately reduced. 2. The concentration of fertilizer should be appropriate. When the concentration of topdressing is too large, it will not only increase the cost, but also cause fat damage and cause losses. Special attention should be paid especially when applying micro-fertilizers. 3. Fertilizer should be applied reasonably. Spray the phosphorus-containing fertilizer such as superphosphate, and take the supernatant after soaking for 24 hours.
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