Planting techniques of Rhizoma Polygonatum

Rhizoma Polygonatum is a traditional Chinese medicine in China, which has the effect of tonifying the spleen, moistening the lung and promoting fluid. With the increase of its market demand, its price is also rising, and the planting prospect is good. So how should Rhizoma Polygonatum grow? Let's take a look at the planting techniques with the editor.

1. Soil preparation and fertilization

Rhizoma Polygonatum likes to grow in a moist and hidden environment, so it is necessary to choose an environment suitable for its growth, requiring loam or sandy loam with loose soil and water retention. In order to make Polygonatum grow better, soil preparation should be carried out before planting, first of all, it should be turned deeply one or more times, so that the soil is loose and beneficial to the growth of Polygonatum. Then apply the base fertilizer, the base fertilizer is mainly farm manure or organic fertilizer, generally about 2000 kg per mu, but we should pay attention to the farm manure or organic fertilizer rotten and then apply, so as not to cause damage to Polygonatum seedlings. The necessary conditions after fertilization can sterilize the soil and reduce the harm of diseases and insect pests.

2. Planting method

Polygonatum polygonatum can reproduce seeds and rhizomes when planting. Seed reproduction is a common sexual reproduction. Generally, mature seeds are used for sand storage in August and sown in March of the following spring. Generally use the method of sowing, first open a shallow trench on the border surface according to the row spacing of 15 cm, and then evenly sow the seeds and cover the soil 1-1.5 cm. Watering grass after sowing, keeping warm and moisturizing, and transplanting can be carried out in one year. The rhizome is to select the rhizome of Polygonatum polygonatum, cut off several pieces of its young parts, dry the wound and plant it, similar to sowing, to keep the soil moist. In production, seed reproduction and growth cycle is longer, so it is mostly used to cultivate a large number of seedlings.

3. Ploughing and weeding

The main work at seedling stage is weeding by ploughing. In order to avoid weeds and seedlings competing for water and fertilizer, weeding should be started after the seedlings are unearthed. Generally, weeding should be carried out 3-4 times a year to ensure that there are no weeds in the field. At the same time, in order to promote the root growth of seedlings, mid-tillage is necessary, which can loosen the soil, change the soil consolidation, and hinder the root growth, especially after rain, the soil is very easy to harden, and timely ploughing can avoid root hypoxia and asphyxiation. In the late seedling stage, in addition to ploughing, it is also necessary to cultivate the soil so as not to expose the roots and avoid plant lodging.

4. Fertilizer and water management

Huang Jing likes to grow in a moist and hidden environment, so we should pay attention to fertilizer and water work, generally watering once a week after transplanting, keep the soil moist, and do a good job of shading at the same time, so as not to affect plant growth. General topdressing combined with weeding, the first fertilization after the first weeding, and then once every 1-2 months, but in the fertilization should pay attention to the amount and concentration, so as not to burn the root system. At the same time, we should also pay attention to the reproduction of diseases and insect pests, especially the underground pests at the seedling stage, they will bite off the roots of the seedlings, resulting in seedling breakage, and in serious cases, it will lead to the death of a large area of seedlings.

The above is the introduction of Huangjing planting technology, hope to help you, want to know more related knowledge, please pay attention to us.