The quality of radish should be prevented
First, choose a good variety. 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 sayings are “the first radish and two radish dishesâ€. In recent years, many people have blindly changed into “Fuqian radish head vegetablesâ€, 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 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 fertilizer should be based on the principle of base fertilizer and topdressing supplementation, paying attention to the rational combination of the three elements 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, the topdressing can be chased and chased, and the topdressing is in the seedling stage, the leaf growth stage and the meat root expansion period, and the urea is 10~15 kg per acre. 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 the 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. The water is sprayed uniformly from 60 to 75 kg, and the spraying time is suitable for the 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 g of 15% paclobutrazol wettable powder is used for spraying 50 kg of water uniformly, and 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, 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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