White radish is rich in nutrients, contains many trace elements that can induce human interferon production, regular consumption can enhance human body immunity, and can inhibit the growth of cancer cells. Radish B vitamins, potassium, magnesium and other minerals can promote gastrointestinal motility and help eliminate body waste. White radish is suitable for dipping fresh and cold sauces. It can also be fried and souped. It can also marinate and make kimchi. Products can be served in restaurants, restaurants, and supermarkets. It can also be exported and sold to other provinces and cities because of its resistance to storage and transportation. . The planting quality in the protected land is fresh, the yield per mu is about 4000 kg, and the economic benefit is high. First, use fine varieties. In the winter and spring seasons, varieties such as “Spring Jade†with good cold resistance, good quality, good commercial quality, and broth-resistance are selected; in autumn, “Haiqiu Mino†and other varieties that are resistant to heat and disease are selected. Second, the cultivation season Spring greenhouse: sowing from early February to mid-February, harvest before and after May Day; spring greenhouse: sowing in mid-March, harvest in early June; autumn greenhouse: sowing in mid-August, November Harvest; Autumn and winter greenhouses: New Year's Day harvest: sowing in early September; Spring Festival harvest: sowing from the end of September to early October. Third, prepare to implement the rotation before sowing: choose the past two years have not planted cruciferous vegetable greenhouse planting. Clean gardening: After the harvest, the stubble leaves and weeds are cleared to the outside of the shed, and high-temperature compost and other harmless treatments are concentrated to reduce the source of infection. Apply base fertilizer: Apply more than 4,000 kilograms of organic fertilizer that is fully crushed and finely chopped, or more than 2,000 kilograms of organic fertilizer for each acre. Do not use unfertilized fertilizer and mix well with the soil. Improve the quality of soil preparation: The soil should be intensively intensively cultivated and cultivated so that it is flat, flat, straight, and free of waste. Disinfection of greenhouses: After fertilization, 250 grams of sulfur powder per acre is blended with 1000 grams of dry sawdust to ignite, and the doors and vents are sealed and the greenhouses are sterilized. Rising ridges: There are two rows and one row of two types of rakes, double rows of plants made of 90 cm spacing made of sorghum, sorghum width 55 cm, sulcus width 35 cm, sorghum surface height 20-30 cm, winter In the spring season, laying drip irrigation pipes in the middle of two rows and covering the mulch film is conducive to water conservation. Single rows of plants grow at a height of 20 cm above the ground at a distance of 55 cm. Fourth, sowing seeds per acre 80-150 grams. Plant spacing 20 cm, spacing 45-55 cm, planting density per acre of 5500-6500 strains. Using hole seeding methods, drill holes in the mulch, then sow, put 2 seeds per hole, cover soil thickness 1.5 cm, and press a little after covering the soil to ensure that seeds and soil are tightly bound. Then watering, the degree of watering is based on the surface soaked. V. Seedling management should be checked once in 5-6 days after seeding management. If seedlings are cut off, they should be replanted immediately. The seedlings are fully developed in the cotyledons and the true leaves are exposed when the heart is in, and the seedlings are carried out in 3-4 true leaves. Leave a strain in each hole, to go between diseased seedlings, weak seedlings, miscellaneous seedlings and insect bites. Seedlings to ridges should be 2-3 times for cultivating tillage to increase the temperature and promote the growth of radicles. Sixth, the vigorous growth period of the leaf management This phase mainly promotes the growth of the roots, so to control the moisture, the cultivator, seedlings, the specific seedling time should be determined according to the climate, soil conditions, generally 12-15 days, sandy soil and weather drought Should shorten the seedling time. 18 °C -22 °C during the day and 10 °C -12 °C during the night; To increase light, especially in winter and spring, wash the film every day, improve the transparency of the film, so that the radish more light. VII. After the management of radish sprouts during the root enlargement period of the meat, we must keep the soil moist and prevent the soil from drying out. We must pour in small water and avoid excessive drought and flooding. Proper and timely watering is an important measure to ensure the appearance of commercial quality and taste quality; watering is stopped one week before harvest. The optimum temperature is 18°C-22°C during the day, 10°C-12°C during the night, and the ground temperature is 13°C-18°C. In the summer and fall season, the temperature is lowered by measures such as releasing air, covering the shade net, and watering, and in winter, the greenhouse insulation is used to prevent cold. In terms of lighting, sufficient light is required, photosynthesis is strong, and there is a lot of material accumulation, and the flesh roots swell fast and the yield is high. Increase lighting time and intensity in winter. When the base fertilizer is applied, it is generally no longer top-dressing, and some boron fertilizer may be applied with water to prevent cracking. For example, if the amount of base fertilizer is small, the organic fertilizer can be fully decomposed with water once the roots begin to swell, and 300-500 kilograms per mu; there can be 10% NPK fertilization per acre with drip irrigation facilities. kg. Foliage fertilizers were applied 3-5 times in the whole growth period, and 0.25% borax or 0.3% potassium dihydrogen phosphate plus 0.5% urea could be sprayed. Can use the bag method or direct reaction method to increase the concentration of carbon dioxide in the facility, increase the efficiency of photosynthesis, and achieve the purpose of promoting growth and increasing production. Hangbag method 20 bags per mu. VIII Harvesting radish harvesting period is generally after the full expansion of fleshy roots for the appropriate harvest, prematurely affecting the yield, too late fiber increase, easy to produce cracked roots, crooked heart, reduced commercial quality. The diameter of fleshy roots can reach 5 cm or more and can be harvested successively. When harvested, the petioles should be cut off by 7-10 cm and sold after cleaning. Take care when harvesting to prevent damage to the fleshy roots.
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