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Detailed Explanation of Key Points for Spring Sowing Cultivation Techniques of Isatis Root
Currently, the Chinese medicinal herb Isatis root is well regarded in the market. The spring sowing season for Isatis root is approaching, so how is Isatis root cultivated in spring? 1. Land selection and preparation. Isatis root is a deep-rooted plant, with a main root that can reach 40-50 cm in length, so fertile sandy soil with deep soil layers and good drainage should be selected for planting. Before sowing, plow the land deeply 20-30 cm; sandy land can be plowed slightly shallower. Apply sufficient base fertilizer, mainly farmyard manure, then break up the clods and rake level to make beds. In the south, high beds are mainly used to facilitate drainage. Generally, the bed width is 1.5-2 m and the height is about 20 cm. 2. Sowing. Isatis root should be sown in March to April. When sowing, first draw shallow furrows about 2 cm deep on the bed surface at a row spacing of 20-25 cm, then evenly scatter the seeds into the furrows, cover with about 1 cm of soil, press lightly, and water appropriately in dry conditions. When the temperature is suitable, seedlings can emerge 7-10 days after sowing. The seeding rate per mu is 1.5-2 kg. 3. Field management. When the seedlings are 7-10 cm tall, thin them in time in combination with cultivating and weeding, and finally set the plants at a spacing of 6-8 cm. After setting the plants, according to the plant growth condition, appropriately apply one additional application of human excrement and urine or chemical fertilizer. In plain areas with abundant water or in rainy seasons, deep ditches should be added around the field to facilitate timely drainage and avoid root rot. If hot and dry weather occurs during the dog days, water in the early morning and evening, and be sure not to water under direct sunlight. 4. Harvesting and processing. For spring-sown Isatis root, the leaves can be harvested 2-3 times. The first time is in mid-June, when the seedlings are 20 cm tall, leaving stubble of 2-3 cm to encourage new leaf growth; the second time is in late August. It is not suitable to harvest during the hot dog days to avoid causing death of large patches. The harvested leaves are sun-dried and become the medicinal Daqingye. Those with large leaves, few broken pieces, cleanliness, dark green color, and no musty smell are best. Isatis root should be dug before the onset of winter on a sunny day. When digging, be sure to dig deep to prevent breaking the roots. After lifting from the soil, remove all soil, stems, and leaves, spread out to dry until 70-80 percent dry, tie into small bundles, then sun-dry further and they can be taken to the market to sell.
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Detailed Explanation of Key Techniques for High-Yield Cultivation of Honeysuckle
Honeysuckle has deep roots and lush leaves, can prevent soil erosion, purify the air, and as a garden and potted flower, can beautify the environment and cultivate character. It is an excellent plant that combines ecological, economic and ornamental value. It generally yields about 100 kg of dried flowers per mu, about 5 kg to
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How to Grow Chilies? A Detailed Guide to Overwintering Rootstock Cultivation
Chili overwintering rootstock cultivation means using the old rootstocks of the first crop of chilies to overwinter until cultivation the following year, skipping the usual seedling-raising and sowing steps. It is simple and easy to carry out, can save more than 50% of labor, effectively prevents seedling rot and pest and disease problems, and achieves a 90% survival rate. It can bring the crop to market 40-50 days earlier, and is a
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Experience and Key Techniques for High-Yield Spring Sweet Potato Cultivation
Sweet potato is a root tuber crop with the characteristics of high yield, stable yield, wide adaptability, strong stress resistance, rich nutrition, and wide use. In the adjustment of planting structure, it has become a hot crop. How can sweet potato achieve a high yield? 1) Balanced fertilization and ridge planting. According to
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What are the control methods for sweet potato violet root rot?
Sweet potato violet root rot, commonly known as "red vein net," "retained skin," etc. [Pathogen scientific name] Helicobasidium mompa Tanaka [Host crops] Sweet potato, potato, soybean, peanut, cotton, mulberry, tea, fruit trees, forest trees, etc. [Disease diagnosis] It damages the tubers and underground stems
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Causes of Deformed Sweet Potato Storage Roots and How to Prevent Them
During the cultivation of sweet potatoes, we have all encountered the phenomenon of sweet potatoes forming some deformed storage roots. Some grow "misshapen," some are big at the head and small at the tail, forming burdock roots, some develop cracks, and some storage roots become hard, as if "red blood streaks" have grown inside them, and so on. These phenomena
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What are the control methods for peanut root rot?
In recent days, many farmers have brought peanut leaves to the shop to ask what is going on. On the surface, the leaves are yellowing, and some farmers think it is a lack of nutrients, but in fact it is mainly caused by root rot. A while ago, rain was frequent, making the soil damp,
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How to prevent and control soybean root rot? These methods you need to master
1. Select disease-resistant varieties. 2. Rotate with non-host crops such as corn, millet, and sweet potato. 3. When sowing, apply more farmyard manure, potassium fertilizer, phosphate fertilizer, etc. 4. When sowing, apply metalaxyl granules so that soybean roots can absorb them to prevent root infection. 5. Before sowing, use seed weight
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Control methods for round spot root rot in hawthorn
Round spot root rot is one of the important causes of hawthorn tree death. 1. Symptoms: the fibrous roots first turn brown and die, and reddish-brown round lesions form around the base of the fibrous roots. In severe cases, the lesions merge, and the rot penetrates deep to the xylem, causing the entire root to turn black and die. 2. Transmission
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Control Methods for White Root Rot in Hawthorn Cultivation
Hawthorn white root rot is an important root disease of hawthorn trees in old hawthorn-producing areas and is the main cause of death of old and weak trees. I. Symptoms After infection, the roots are entangled with white to grayish-white silk-like nets, which are the pathogen's rhizomorphs, and a grayish-white thin downy substance is produced at the root crown area on the ground. Leaves become smaller and leaf margins scorch, and some or all of the small branches and large branches die back.
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