High-yielding cultivation techniques of spring radish

Spring radish planting in early spring is a way to get rich with low investment, short cycle and high efficiency. It can not only supplement the off-season supply of vegetables, increase the varieties, but also provide a good mouthwash for future crops. Now its main cultivation techniques are introduced as follows: 1. Select good varieties should generally choose high yield, good quality, good taste, and at the same time suitable for processing needs of the species. Such as Japan's Bai Yuchun, South Korea's Dagen and so on. 2. Fine soil preparation, application of basal fertilizer should generally choose sandy loam or loam to grow spring radish. Former crops such as rice, soybeans, vegetables, etc., should be cleared of pastoral areas in time and ploughed and dried. Before the preparation of a large greenhouse, the general width of the greenhouse is 4.5 meters or 6.3 meters, 1.8 to 2.2 meters high and 30 to 40 meters long. In the shed to apply the base fertilizer, generally per acre full of cooked pig manure, human fecal urine and other high-quality farmyard fertilizer 2000 to 3,000 kilograms, urea 10 kilograms, high-quality compound fertilizer 15-20 kilograms, borax 0.5 to 0.75 kilograms. If the farmyard fertilizer is insufficient, it is best to apply 40-50 kg of cooked cakes per acre, and then appropriately cultivate and finely prepare the soil. The land preparation needs to reach the height and depth, and the looseness of the soil. The general box width is determined by the size of the greenhouse, which is l.5-2 meters, with a ditch of 0.3 meters and a ditch width of 0.3-0.5 meters. The preparation work of the site preparation and cover film must be completed 10-15 days before sowing. 3. Sowing method The planting period of the greenhouse cultivation is from late January to early February; the planting period of the small arch covered with double membranes is mid-to-late February. Mu sowing amount of 200,250 grams. The hole sowing was conducted with a spacing of 0.25 meters and 0.33 meters, about 8000 holes per acre, sowing 2 seeds per hole. Cover fine soil 0.7 cm after sowing. After sowing film, cover film, cover a small arch film, heat preservation to promote the whole seedlings. 4. Strengthen field management When the seedlings unearthed about 70%, the mulching film was removed. When 2 or 3 true leaves are used, thinning is performed. The temperature inside the shed is maintained at 20-28°C, and the film is used to remove the air, regulate the temperature, prevent the high temperature from burning seedlings, and freeze the seedlings at low temperature. After the three-leaf stage, urea 5-10 kg will be raised. In the case of fat foot, good growth, long Miaowang, Miao Miao may not be applied. After the fleshy roots begin to expand, the small combined watering Mushi Sanyuan compound fertilizer is 10-l5 kg in order to facilitate the growth and enlargement of the fleshy roots. Before the land is sealed off, the cultivator can usually loosen the soil 2-3 times, and ditch the soil, soil and soil to maintain loose air. 5. To strengthen the comprehensive pest control and prevention of pests and radish in the early stage of the growth of pests and lighter, to the late growth temperature gradually increased, easily lead to pests and diseases. The main diseases are black rot; prevention should be carried out through agricultural measures such as seed disinfection, crop rotation and enhanced ventilation. After the onset of disease, agricultural chemicals such as streptomycin and copper preparations can be used for irrigation and control. Soft rot may be sprayed with 500-800 times solution of enemy cough in the evening pouring or 50 kg of streptomycin 100-200 mg/kg solution. The main insect pests are locusts and small moths, etc., and can be sprayed with a net of water, Laixi, Bt and other agents. 6. Timely harvesting When the fleshy root grows to about 3 cm on the ground and 4-6 cm in diameter, timely harvesting is based on market conditions and processing needs. In order to improve the commercial nature, it is generally harvested in stages according to the standard. After each harvest, the grading ribbons are put on the market.