In order to enable the radish to achieve an annual supply, facility cultivation techniques have played a significant role. The use of greenhouse greenhouse cultivation technology has filled the supply of radish spring market. During this period, the price of radish was higher, which greatly improved the planting efficiency. However, spring radish cultivation is prone to premature convulsions, deformed roots, heart, and spicy flavor, which seriously affect the yield and quality of meat roots. Therefore, to achieve the high quality and high yield of spring radish, we must pay attention to the following key cultivation techniques: 1. Choose the appropriate twitch resistant variety Choose varieties with short growth period, strong cold resistance, low light tolerance, strong winter, and difficult to twitch early. The radish varieties suitable for spring cultivation include imported "Bai Yuchun", "Hanbaiyu" and domestically cultivated "Nanchunbai 7" and "Nanchunbai 8" and other excellent varieties. 2. Strictly check seed quality to prevent fork roots Seeds must be selected with pure seeds and large seeds, so that the seedlings are strong and strong. The seeds of Chen, which have been stored for more than 3 years, are often destroyed at the tip of the radicle. After sowing, the emergence is slow, the growth is weak after emergence, and the rate of roots and roots is high. 3. Determine the appropriate sowing date according to the facility Spring radish should strictly control the sowing period. Sowing too early, the radish can easily cause the plant to twitch and flower by vernalization under low temperature conditions. Because the outside temperature rises rapidly after sowing, it is beneficial to the growth of the leaves but not conducive to the development of fleshy roots. It is easy to cause fleshy roots with rough meat, low yield and poor quality. According to the insulation performance of different facilities to determine the suitable sowing date, the overall sowing period and seedling temperature should be above 8 °C, and the mulch film should be covered to promote moisture retention and promote emergence. 4. Reasonable watering and applying enough base fertilizer The growth of spring radish is short, and the number of watering is less than that of top dressing. The sandy loam with loose soil, fertile soil and good permeability should be selected. Before planting, it is necessary to apply sufficient base fertilizer. Generally, 2000 to 2500 kg of farmyard manure per mu, or 50 to 60 kg of ternary compound fertilizer, and then fine soil preparation. On the basis of applying the base fertilizer, when topdressing the radish in the “fixed pileâ€, the urea is applied 8-10 kg per mu. The drought tolerance of radish is poor. The overall requirement is that the soil is kept moist. The drought is prevented from watering in the early stage of growth, and the hardening of the perennial skin layer is avoided. When the fleshy roots are rapidly expanding in the middle and late growth period, the water supply should be evenly distributed. The soil water content is stable at 20%. Left and right, the soil is unevenly wet and dry, which may cause cracking of the fleshy roots. 5. Strengthen pest control Adhere to prevention and comprehensive management. Scientific rotation; clean pastoral, cultivating and weeding; use biological pesticides and high-efficiency, low-toxic chemical agents alternately. Underground pests Small ground tigers use black light or sweet and sour liquid to trap adult worms, and use baits to trap larvae; mites can be killed by yellow plate or 10% imidacloprid WP 1500 times; Plutella xylostella, cabbage caterpillar, etc. 1500 times liquid or 3.2% a vitamin salt • chlorocyanide 3000 times liquid spray or BT emulsion 500 times liquid control. Black rot and soft rot, after the diseased plants are found, they should be removed in time, and the lime is disinfected in the planting hole. Downy mildew is controlled with 25% metalaxyl or 75% chlorothalonil WP 600 times solution or 58% Redolmer 600 times solution. Strictly observe the safety interval. 6. Timely harvesting, preventing jealousy The fleshy roots are fully inflated, the base of the fleshy roots has been rounded, and the leaves turn light when they begin to turn yellow-green. If the spring radish is harvested too late or stored in a hot and dry place, it will be worried about losing a lot of water. However, the harvest of early spring radish should be flexible, and the harvest time should not only consider the characteristics and characteristics of the variety, but also consider the market conditions and public consumption habits to improve economic efficiency. Each time it is harvested, it should be watered once to fill the soil voids that appear after the radish is pulled out, and promote the growth of the non-long-legged plants. Spring radish cultivation is stressful and requires careful management by growers. About the quality and high-yield cultivation techniques of spring radish is here, I hope to help you! Frozen Shrimp,Vannamei Shrimp,Vannamei White Shrimp,Seafood Frozen White Shrimp Zhejiang Zhoushan Jiaze Aquatic Co., Ltd. , https://www.tianjia-aquatics.com
