Planting of Isatis root

Isatis root granules, also known as blue indigo, are a common Chinese medicinal material in our country. The isatis root granules in the pharmacy are made of isatis root powder. It can treat fever and colds, internal heat, moisten the lungs and throat, etc. It has many functions. As the market demand for Isatis root powder increases, its total planting area is also continuously expanding. Well, today I won’t talk nonsense with you guys any more, let’s get to the point and talk about how to grow Isatis Root Granules.

1. Choose a good location and apply fertilizer. Isatis root powder is different from other crops. It is a biennial woody plant. It crawls on the ground in the first year of its growth and development, and begins to bear fruit in the second year. The site is chosen based on its habits, so we must first understand its habits. It is a heat-loving green plant, not resistant to cold, and is very afraid of humid natural environments. When selecting a site, we try to choose sandy soil with loose and rich soil, good drainage capacity and abundant organic matter. After selecting a good piece of land, you need to start plowing, deep loosening the soil, and removing weeds and some dead leaves. Apply 3,000 kg of organic fertilizer as base fertilizer to one acre of land. Finally, make the ridges and wait for planting.

2. Planting. In early to mid-May is the season when seeds mature. At this time, we need to collect the seeds, store them in a cool place, and prepare for planting the next year. The seeds must be processed before planting. Soak the seeds in warm water at 40 degrees for about four hours, take them out to dry, and then mix them with grass ash before planting. Generally, the planting time of Isatis root powder is in mid-April every year. The planting method is row sowing. We first open a two-centimeter ditch on the surface of the bed, control the row spacing at 30 centimeters, and the plant spacing at 15 centimeters, spread the seeds evenly into the ditch, and then fill the soil to submerge the seeds. Water the seeds immediately after planting to increase the germination rate. During this stage, we must ensure that the soil layer is more than 60% moist. The seeds will germinate after a week.

3. Seedling management methods. After-planting logistics management includes observing the growth and development of seedlings, checking and supplementing seedlings. When the seedlings are about five centimeters tall, they need to be transplanted. Transplanting can be carried out at the same time as soiling and weeding, which can increase the absorbency of the soil. When transplanting, pay attention to the relative density of transplanting and control the distance between plants to about four centimeters. After transplanting, the soil should not be too moist to stimulate the roots of the seedlings to expand downward to find water, which can promote the growth of its roots. In the middle and late stages of the growth of the seedlings, they require a lot of water. We must always keep the soil moist to accelerate the growth rate of the seedlings. In addition, in rainy weather, a good drainage measure should be taken in the field to prevent excessive water from rotting the roots of the seedlings, which is not good for their growth.

4. Cultivation techniques. The cultivation techniques mainly include fertilizing, weeding and tilling the soil. Generally, weeding and tilling the soil three times are needed during the entire growth period. The first time is just after they are transplanted, and the depth of tilling the soil should be at least 15 centimeters. Since the resistance of newly transplanted seedlings is very poor, we usually pull out the weeds with force and do not use chemical fertilizers. The second time is at the end of June, when the soil is turned to a depth of at least 20 centimeters and manual weeding is carried out. The third time is at the end of September. At this stage, the Isatis Root Granules have already matured and their drought resistance will be improved to a certain extent. Therefore, we can use fertilizers to weed this time. But there is one thing we need to pay attention to. During the first ten days of its maturity, it is not suitable to use any medicine. Soil turning can be carried out together with fertilization to promote the growth and development of plants. Generally, 50 kg of ammonium sulfate and 10 kg of phosphorus and potassium fertilizers are applied to one acre of land at a time. Water the land immediately after applying fertilizers to dilute the liquid fertilizer concentration to avoid excessive fertilizer concentration that may burn the main stem.

The above is the cultivation technology of Isatis Root Granules. Diseases rarely occur during the growth process of Isatis Root Granules, so we generally do not need to worry about these aspects. We can usually manage the fields well and clean up the dead leaves and dirt in the fields regularly, and generally the cultivation can be successful.