1. For one or two years and whole grass medicinal materials, more nitrogen fertilizer should be applied at seedling stage to promote stem and leaf growth, and phosphorus and potassium fertilizers should be applied in the middle and late stages;
2. For perennial and root and underground stem medicinal materials, organic fertilizer should be applied when preparing the ground, and three fertilizers must be applied during the growing season. The first time is after spring germination, the second time is during flower bud differentiation, and the third time is before flowering. Winter Before going to sleep, you should re-apply wintering fertilizer.
For the medicinal materials that need to be nursed, when preparing the land before sowing, evenly spread the amount of bio-organic fertilizer per square meter / 2 kg, and plow the seeds after application.
The transplanted medicinal plants can be applied at the time of transplantation, and can be applied by hole application or spreading.
80-100 kg of bio-organic fertilizer is applied to the acres for hole application, and the plant seedlings are directly planted in the holes after fertilizing and covering 10 cm of soil; the amount of acres to be applied is 160-200 kg, and the ploughing is applied after transplantation, and transplanting is made by trenching.
Tilled medicinal plants are ditched at the time of sowing. The acres are sprinkled with 120 kg of bio-organic fertilizer into the ditch. The seeds of the medicinal material are mixed with the fine soil and spread in the ditch.
Directly spread medicinal plants, combined with 200-250 kg of biological organic fertilizer applied to the acres, can be sown after ploughing. Bio-organic fertilizer is used as top dressing on medicinal materials. Generally, 20-40 kg of top dressing is applied each time. The number of fertilization depends on the growth of the medicinal plants.
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