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Summer sowing of Isatis indigotica has many advantages, worth growers' choice
Isatis indigotica (woad) is a bulk medicinal herb with good sales on the current market. It can be sown in spring, autumn, and also in summer. However, judging from our trial demonstrations over the past two years, summer-sown Isatis indigotica is much welcomed by herb growers for its advantages of a short growth period, excellent quality, high yield, no effect on subsequent crops, and relatively high returns.
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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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What are the key technical points for post-harvest pest and disease control in loquat?
Currently, most loquat fruit has been harvested. In addition to strengthening fertilizer and water management, pest and disease control is also an important prerequisite for ensuring whether the fruit trees can grow and develop normally and flower and bear fruit later. The main pests and diseases after loquat harvest include leaf spot disease, pear psylla, mites, aphids, etc.,
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How to cultivate raspberries artificially? A detailed explanation of the key cultivation techniques
The raspberry varieties currently cultivated are mainly domesticated varieties bred from wild raspberries, with an average yield of 320 kg per mu, and high yields of more than 500 kg, and a output value of more than 3,500 yuan per mu. The cultivation techniques are as follows: Soil selection: Raspberries are widely adaptable, but
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What Types of American Ginseng Are There? An Introduction to Common Varieties
There are two kinds of American ginseng currently on the market in China: one is imported from the United States and Canada, and the other is introduced and cultivated. What they have in common is: the root is cone-shaped and strip-like, thick and long like a finger, with no rhizome and no fibrous roots, with fairly obvious body rings of 5-10 circles near the head, and the surface has protruding transverse
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What are the precautions for growing dwarf sunflowers?
The dwarf sunflower is a relatively new ornamental flowering plant for growing at present. To help everyone understand it better, the editor will introduce the precautions for growing dwarf sunflowers. Let's take a look together! 1. Precautions for growing dwarf sunflowers. Dwarf sunflowers can
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Detailed Explanation of Key Technical Points and Management Methods for White Yam Cultivation
Currently, with the accelerating pace of economic development, people's pursuit of a higher quality of life is also increasing, and they are beginning to turn their attention to fields such as specialty agriculture, ecological agriculture, and leisure agriculture. Therefore, terms such as specialty agriculture, ecological agriculture, and leisure agriculture have been constantly emerging.
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Detailed Explanation of Key Points for Greenhouse Tomato Cultivation Techniques
Tomatoes are currently a very popular variety on the fruit and vegetable market, and their selling price is also relatively high. In order to meet market demand, many growers choose to grow tomatoes through greenhouse methods to achieve year-round supply. So how many jin per mu do greenhouse tomatoes yield?
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Detailed Explanation of Key Points and Management Methods for Mugwort Planting Techniques
Currently, mugwort is widely used in our daily lives; it can not only be eaten and used to repel mosquitoes, but also has extremely high medicinal value. So, what are the mugwort planting techniques? 1. Planting time. Mugwort is generally planted around March each year, and mugwort
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Detailed Explanation of Grape Growing Techniques and Management Points in Southern China
Southern China is currently the fastest-growing grape production region in our country, so do you know the grape growing techniques for southern China? 1. Grape growing techniques for southern China. 1. Seedling selection: Choose thick, sturdy seedlings; the thickness of the planting seedling must reach 0.5 cm or more, and the thicker the better; select planting seedlings with a thickness between 2.5 cm and 4 cm.
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