First, choose good varieties. Choose a small radish variety that is not easy to be careful.
Second, the appropriate sowing. Sowing at the right time, don't grab it early. The folk proverb is "the first radish and two radish dishes". In recent years, many people have blindly changed into "Fuqian radish head vegetables", and the sowing date is more than one week earlier. This is also the main reason for the radish heartache everywhere.
Third, reasonable close planting. Large-scale varieties generally have a row spacing of 50-60 cm and a plant spacing of 20-30 cm; medium-sized varieties have a row spacing of 40-50 cm and a plant spacing of 15-20 cm; small varieties have a row spacing of 8-10 cm.
Fourth, balanced fertilization. The use of fertilizer should be based on the principle of base fertilizer and topdressing, focusing on the rational combination of nitrogen, phosphorus and potassium, and scientific fertilization. The short-term varieties with sufficient base fertilizer can reduce the topdressing; the large-scale varieties have long growth period, and the topdressing can be chased and chased. The topdressing period is 10~15 kg per mu, in the seedling stage, leaf growth stage and meat root expansion period. 3 to 5 kg of superphosphate and 15 to 20 kg of potassium sulfate.
Fifth, scientific watering. Control the humidity of the soil to prevent over-drying and wetness. Use a method of “draining in the drought and pouring it on a cloudy day†to maintain the soil moisture of 70%~80%. In the middle and late growth stages, the water needs to be large, and the water supply is sufficient, but the amount of water should not be too much to prevent the upper part of the ground from growing. The folk practice is: "The earth does not dry or pour, the ground is white and poured immediately."
Six or three sprays. 1. Spraying boron fertilizer: Boron fertilizer can promote the radish heart. From the radish seedlings grow 2~3 pieces of true leaves to about half a month before harvesting, spray boron fertilizer once every 20 days, 150g of borax or 100g of boric acid per acre, first dissolve with a small amount of warm water. Water 60~75 kg is sprayed evenly, and the spraying time is suitable for evening. 2. Spraying paclobutrazol: Paclobutrazol has the function of controlling the excessive growth of plants and rationally regulating the distribution and operation of photosynthetic products in plants. In the growing season of radish plants, 15 grams of 15% paclobutrazol wettable powder is used in the mu, and evenly sprayed with 50 kg of water, the non-growth field is generally used once. 3. Spray naphthalene acetic acid: Spray 10 mg/kg naphthalene acetic acid solution twice in the late growth stage, each time interval of 10~15 days, which does not affect the growth of fleshy roots, but also prevents heart palpitations and delays maturity. If 10 mg / kg of naphthaleneacetic acid is sprayed, 5% sucrose and 5 mg / kg of borax solution are added, and the three are mixed and sprayed, and the effect of preventing and treating heart is better.
Seven, timely harvest. Spring and summer type radish varieties, choose to plant at the appropriate time, timely harvest, can prevent the loss of water due to late harvest.
Eight, scientific winter storage. During winter storage, ensure that the temperature is about 1 °C ~ 2 °C, moderate temperature and humidity, not high or low, not only to ensure that the radish does not lose water and does not rot, not only normal winter and can not be frozen. If you do the above, it will effectively prevent the occurrence of radish and heart.
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