How do summer turnips grow?

How to grow radish over summer? Please introduce the cultivation of summer radish can refer to the following methods: first, select excellent varieties: summer radish cultivated in off-season should choose high-quality varieties with good heat tolerance, strong disease resistance and rapid expansion of fleshy roots. Such as: Xia Changbai 2, Xia Meinong Zaosheng 3 and other varieties. Second, soil preparation and fertilization: the land planting radish should choose sandy loam with deep soil layer, good drainage and rich in organic matter. Remove the residual branches and weeds in the field in time after the previous crop harvest, then spread 3000-4000 kg of fully mature organic fertilizer and 50 kg of special compound fertilizer for vegetables per mu as base fertilizer, then turn deeply, prepare the soil, rake flat, rake fine, and finally make ridges, the ridge distance is 60-80 cm, the ridge height is 15-20 cm, and the top of the ridge is 20 cm wide. Third, sowing at the right time: according to the market demand, it is suitable to sow from late June to early August, but not too early, otherwise there are too many Rain Water, which is prone to diseases. Large radish varieties can be planted by hole sowing, with a seed amount of 0.5 kg per mu, double rows per ridge, keeping a row spacing of 20 cm × 20-25 cm, 2-3 seeds per hole, and covered with sifted fine soil 2 cm thick after sowing. Medium-sized radish varieties can be sown in trenches, with a ditch depth of 2-3 cm and a seed consumption of 0.75-1.0 kg per mu. Most of the small varieties were sown, and the seed consumption per mu was 1.5-2.0 kg. When sowing, the seeds should be mixed with medicine, soil or chemicals in order to prevent underground pests. After sowing, pour a small amount of water in the ridge and furrow, and then water again after 2-3 days. The amount of water should not exceed the height of the ridge and soak the back of the ridge. Strengthen field management 1. Interseedling and fixed seedling: after the seedling is unearthed, the first seedling is carried out when the cotyledons are unfolded, the seedling is carried out for the second time after growing 3-4 true leaves, and the seedling is fixed when the seedling has 5-6 leaves and the fleshy root of radish breaks its belly. Only one robust seedling is retained in each hole. 2. Intermediate ploughing and weeding: combine the seedlings with shallow and then deep ploughing and hoe, and at the same time cultivate the soil in the furrow on the border surface to prevent seedling inversion. 3. Timely irrigation: the temperature in summer is high and the water evaporates quickly, so it should be watered reasonably according to the soil moisture and the characteristics of each growth period of radish. In the seedling stage, the root system is shallow and the water demand is small, so it is necessary to grasp the principle of "less watering and watering frequently"; in the peak leaf growth period, it is necessary to grasp the principle of "proper watering" and not to water too much; during the period of fleshy root expansion, it is necessary to grasp the principle of "adequate and uniform water supply". Keep the soil moisture at 70-80%. Note: summer carrots are not allowed to be watered at noon, preferably in the evening. 4. Fertilizer application: urea 8-12 kg per mu after seedling setting and watering to promote leaf growth; in the early stage of fleshy root expansion, 15-20 kg urea or ammonium sulfate per mu and 10-15 kg potassium sulfate per mu can be applied with water. In addition, if combined with root topdressing and foliar spraying for 2-3 times, it will effectively promote the expansion of fleshy roots. 5. Pest control: the temperature in summer is high, and there are many pests, such as cabbage insect, aphid, Plutella xylostella, yellow striped beetle, etc. Insecticides such as Lesbon, imidacloprid, Yitaibao and BT EC can be selected to control black rot, soft rot and virus diseases. Fifth, timely harvest: when the fleshy root is completely expanded and the weight of a single plant reaches 300-500 grams, it can be harvested and listed one after another according to the market situation. Be careful not to harvest too late, otherwise it will be easy to bran and affect the quality. Click for more radish planting techniques click to get more vegetable planting techniques