Radish cultivation points

The use of improved varieties: the selection of quasi-optimum varieties is a prerequisite for quality and production of radish in summer. Therefore, when cultivating radish in the high temperature season in midsummer, it is necessary to use early-maturing varieties with good heat resistance and strong resistance. Shizujifei: early maturation radish short growth period, a higher demand for nutrients must be combined with site preparation Shizu base fertilizer. The amount of basal fertilizer should account for 70% of the total amount of fertilizer, and 4,000 kg of fully-fertilized farmyard fertilizer and 30-40 kg of compound fertilizer can be applied per mu. The radish is cultivated in deep sorghum sorghum, and the sorghum is 25-30 cm high. Sowing seedlings: When radishes are cultivated during the early summer and early summer, they can be sown in batches from May to August according to the market demand in the off-season off-season. The sowing method has two kinds of sowing and sowing, which can be selected according to the type of species. Large fruit varieties should be on-demand, spacing 20 cm, spacing 35 cm, sowing points should be shallow, after sowing covered with fine soil species; small fruit varieties can be broadcast, after the seedlings to maintain 6-12 cm spacing. After sowing, cover the surface with straw or shade nets to protect the sun from sunstroke, prevent rainstorms, and reduce fertilizer and water loss. After the seedlings have to be removed, straw and shade nets must be removed in time to avoid pressure seedlings or delicate seedlings. Seedling period must be early seedlings, seedlings in the evening. The seedlings grew rapidly after unearthing. When the seedlings grew 1-2 leaves and 3-4 leaves, the seedlings were once seedlings and the seedlings grew to 5-6 leaf stage seedlings. Fertilizer management: radish requires more water, and the amount of water is highly related to the level of yield and quality. Excessive water, rough radish skin, but also easily lead to rooting and rot; seedling lack of water, prone to viral disease. When the fertilizer and water are not enough, the radish has a small, rooty, lignified, bitter and spicy taste, and it is easy to eat. Cultivation should be based on the characteristics of the radish during the growth period and the need for a balanced water supply, do not suddenly dry. After pouring seeds, water is poured. Most of the seeds will be poured with water once they are seedlings to facilitate full seedlings. After planting, the seedlings soon enter the period of leaf growth and must be properly watered. In the later period of vegetative growth, appropriate water control is needed to prevent the leaves from being long and affect the growth of fleshy roots. When the plants grow 12-13 leaves, the fleshy roots enter a period of rapid growth. At this time, the supply of fertilizer and water should be sufficient, and the water can be flexibly changed according to weather and soil conditions. After heavy rain, it must be drained in time to prevent excess water from picking up roots and producing roots or rot. In the hot and dry season, it is necessary to insist on watering in the evening and avoid watering at noon to prevent the young leaves from wilting and fleshy root rot, and stop watering for 7 days before harvest. Radishes also have special requirements for nutrients. Boron deficiency will make the root of the meat darker and cramped. During the root enlargement period, appropriate potassium fertilizer should be applied. After emergence, the seedlings should be given as appropriate before setting seedlings. When the seedlings grow out of 2 true leaves, topdressing with a small amount of fertilizer is carried out. After the second time, the middle seedlings are combined with cultivating and weeding topdressing once. In the radish "broken white" to "strapless" during the second time dressing, after seeing seedlings growing up. It should be noted that topdressing should not be close to fleshy roots to avoid burning roots. The cultivating and weeding can be combined with irrigation and fertilization. The cultivator should be deep and shallow firstly, first near and far, and stop cultivating after the line is closed.