Cultivation techniques of Radix Isatidis when will it be planted

Radix Isatidis is originally a kind of weed in the countryside. due to the increasing demand in the medicinal material market, this kind of rural weed has gradually become a rich grass in the hands of farmers. Large quantities of cultivation of Radix Isatidis has become a channel for drug farmers to get rich, and cultivation techniques are indispensable if they want to plant Radix Isatidis in the future.

Cultivation techniques of Isatis Root

1. Soil preparation and fertilization

Banlan root deep-rooted plants, 667 square meters of rotten organic fertilizer 43.5 cubic meters. Mash it fine before application, and then spread it evenly on the ground. Ploughing 20 to 30 centimeters deep, raking fine and leveling to make a flat bed 1 meter wide. Water thoroughly when the ground is dry, and then sow when the topsoil is slightly dry and loose.

2. Sowing seeds

Spring sowing is divided into spring sowing and summer sowing, spring sowing before and after the Qingming Festival, no later than the Valley Rain Festival. Summer sowing comes before and after Grain in Beard. When sowing in the whole border, draw a ditch 1.5 cm deep according to the row spacing of 20 cm, spread the seeds evenly into the ditch, then cover the soil, press flat, slightly suppress, and water immediately. Generally 7 days after 10 days of emergence, 667 square meters with 1.5 kilograms. In some producing areas, the intercropping of blue and food crops or vegetables can make full use of the land and increase income.

3. Field management

Keep the soil moist after sowing, set the seedling when the seedling height is 6cm or 10cm (you can also fix the seedling at one time, or first thinning the seedling, and then fix the seedling), remove the weak and stay strong, such as transplanting in time to make up for the lack of seedlings. The focus of management is to weed in the middle ploughing, shallow hoeing after the seedlings are unearthed, preventing crushing of the seedlings, loosening the soil and weeding after fixing the seedlings, keeping the surface loose and keeping weeds free. Those who mainly harvest big green leaves should be fertilized three times a year. After the first topdressing, 667 square meters are topdressing 10 kilograms of urea, which are applied in trenches between rows and watered in case of drought. The second and third times are all applied immediately after the leaves are harvested. Mainly to harvest plate blue root, do not cut leaves during the peak growth period, less nitrogen fertilizer can be applied 30kg to 40kg cake fertilizer.

4. The management of farming.

The plum blue sown in spring cannot blossom and bear seeds in that year. In order to harvest seeds, it must be subjected to low temperature. There are the following two methods: first, when planing and harvesting Radix Isatidis in late October, select the disease-free and stout main root, transplant it to the seed nursery to strengthen management, cover horse dung to protect against the cold in November, and mature seeds from the end of May to early June of the following year. Select full and full seeds for next year's reproduction.

Second, the sunny and fertile plots were selected for sowing in August, and the height of the seedlings could reach about 30 cm in that year. Fully fertilize and water the seedlings before winter to promote the growth of the seedlings. After turning green in the second year, the seedlings are divided into two stages, and the seedlings are retained according to the row spacing of 30cm to 40cm. It blossoms in the middle and late April, and seeds can be harvested from May to June. Where the seeds have been collected, the roots of Banlan should no longer be used for medicinal purposes.

When will Radix Isatidis be planted

The sowing season of Radix Isatidis is different, the products harvested are also different. According to the sowing time of Radix Isatidis, it can be divided into four stages: autumn sowing, early spring sowing, spring sowing and summer sowing. Autumn sowing and early spring sowing are mostly for the purpose of harvesting seeds, the roots of Radix Isatidis planted in these two periods can not be used as medicinal materials; summer sowing is suitable to be used in the areas with long plum rain season in the south, this method can reduce diseases and insect pests, but the yield is low. Radix Isatidis sown in spring can harvest both leaves and roots, and the yield is higher, so it is the most commonly used method.

Varieties of Radix Isatidis

1. Radix Isatidis: the dried root of Isatis indigotica is slender cylindrical, the surface is light grayish yellow, rough, with longitudinal wrinkles and horizontal marks, and there are root marks, the root head is slightly enlarged, there is a pit at the top, and there are dark green petiole residues around it. Thicker roots and dense verrucous processes and wheel-shaped gray-brown petiole scars. The quality is solid and brittle, the cross-section skin is yellow-white to light brown, and the xylem is yellow. The root is straight, sturdy, solid and powdery.

2. Malan root: it is the dry rhizome and root of the plant Malan, grayish brown, the rhizome is cylindrical, the upper part has a short aboveground stem, the aboveground stem has opposite branches, the rhizome has dilated nodes, and the nodes are divided into thicker rhizomes and slender fibrous roots. The root is slender and slightly curved, with fine wrinkles on the surface. The rhizome and aboveground stem are brittle and easy to break, the cross section is uneven, slightly fibrous, there is a large pulp in the center, and the root is more flexible. The evenness of strip length and thickness is the best.

Planting conditions of Isatis root

Radix Isatidis has a strong adaptability to climate and soil conditions, resistant to cold, like warmth, but afraid of water stains, the Yangtze River Basin and the vast northern areas of China can grow normally. Seeds germinate easily, all germinate well in the range of 15C~30C, the germination rate is generally more than 80%, and the seed life span is 1-2 years.

The normal growth and development process of Radix Isatidis must go through the stage of low temperature in winter before it can blossom and seed, so in production, spring or summer sowing is adopted, the leaves are harvested and the roots are dug in the same year, and the planting time is 5-7 months. If cultivated according to the normal growth period, it is only used to keep the seed.

If you want to get rich by planting Radix Isatidis, you need not only to master the techniques of cultivation, but also, more importantly, to master the growth habits of Radix Isatidis, and then on this basis to constantly create a suitable growth environment for Radix Isatidis to adapt to the growth of the environment, in order to get better returns.