The latest course of fertilization techniques and methods of Pinellia ternata
Pinellia ternata is a common plant growing in southern China, and its underground tuber is an important traditional Chinese medicine, which plays a unique role in the treatment of traditional Chinese medicine. In the past, wild Pinellia ternata was harvested and used as medicine in the mountains, but the number of reproduction was limited and could not meet the huge demand, so artificial cultivation was also advocated in recent years. But how to fertilize and promote growth in cultivation needs to be introduced.
1. Characteristics of fertilizer requirement
The rhizome of Pinellia ternata mainly grows in the shallow soil layer less than 10 cm, so there is no need for deep ploughing and fertilization, only about 5 cm below the soil surface. Pinellia ternata likes fertilizer, and there is a large demand for fertilizer, which varies in different periods, so it can be used for use. Pinellia ternata is mainly rooted in tubers, so it is best to apply fertilizer and water, which is easy to absorb.
2. Fertilization technology
When base fertilizer is applied before planting, it is usually some fallen leaves, crop straw and animal manure to rett together to make mature farm manure, about 500 to 600 jin per mu of base fertilizer, which can improve the soil structure to a great extent. Topdressing can be done many times in a year, and it is best to decide according to the growth situation. It will generally be topdressing once at the seedling stage to promote the stable growth of seedlings and promote the growth of the aboveground part. In summer, there will be a lot of rainfall or irrigation, which will carry away the nutrients in the soil, so we need a lot of topdressing to supplement nutrition, mainly phosphorus and potassium fertilizer, calcium fertilizer, and supplement soil trace elements to meet the needs of tuber growth. The third topdressing is between September and October, when you need to use some of your own special fertilizer to ensure the expansion of tubers, about 1 to 3 jin per mu. Fertilization needs to be carried out 10 centimeters away from the base of the stem in order not to burn the stem.
3. Fertilization method
Generally, it is planted from the ridge, so the most common fertilizer application method is to dig two small ditches about 5 cm wide on both sides of the ridge to fertilize, which is convenient, fast and uniform. Or dig a small hole next to each plant so that it can be absorbed best and most completely. Or dissolve in water and use together with irrigation, the effect is the fastest.
The artificial cultivation of Pinellia ternata is not long, so there is no relatively complete experience in the management of non-production and fertilization technology, all need to accumulate experience in practice. But we should also master the experience we already have.
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