First, select suitable varieties of high temperature and rain in the summer and autumn in the South, is not conducive to the growth of radish. The market supply of Minpu has appeared in the off-season, the prices are high, and the supply of products is in short supply. Therefore, in addition to selecting early-maturity, heat-resistant and stress-tolerant varieties, summer and autumn radish cultivation should also pay attention to facilities cultivation, and must select high-quality varieties that can form fleshy roots under higher temperature conditions. Years of planting experience show that: Xia Kang 40 and Xia Chang Bai No. 2 are suitable for summer planting; Xia Kang 40 and Xia Chang Bai No. 2 are suitable for early-autumn cultivation. There are also No. 13 Short Leaf, 60 Early Early Spring, and Ma Er Zao Luo. Cards and Other varieties; varieties cultivated in late autumn are Southsea radish. Second, soil preparation and application of base fertilizer Radish off-season cultivation, should choose a deep, loose soil, drainage and water retention conditions of a good sandy loam, more viscous soil is not conducive to root growth and fleshy root expansion. Before as cruciferous crops such as cabbage, cabbage and other land should not be planted radish, otherwise serious pests and diseases. Immediately before sowing, the plots were ploughed and sun-dried, broken and flattened, and applied to basal fertilizer. Basic basal fertilizer, supplemented by topdressing, generally 500-750 kg per hectare of fertilizing farmyard fertilizer, 15 kg of potash, 30 kg of superphosphate, or 2 kg of oasis and 500 kg of decomposed farmyard manure used as base fertilizer, full of soil Mix well. Summer rain is more, it is appropriate to plant sorghum, planting width according to local farming habits, generally 1.5-1.8 meters Baogou. Third, regular sowing summer cultivation of radish, generally using early maturing varieties, small plants, can be properly close planting. There are two kinds of sowing methods: sowing and sowing. The sowing rate per acre is 0.3-0.5 kg. Soaking with oasis bacterial fertilizer or Opulum and gene activator and other liquid fertilizers before sowing can improve sprouting speed and seedling resistance of radish. Line spacing 25-30 cm, spacing 10-15 cm. Slightly cover the soil after sowing, or cover some straw and let it run. At the same time, attention must be paid to the prevention of ants. Fourth, field management field management should be based on the growth phase of radish. The germination period requires that the soil surface be kept moist to ensure emergence. Seedling period and time seedlings, Dingmiao. At this time, the water management should take less water to inhibit the growth of the shallow roots of radish and make the roots grow deeper. Entering the rosette period from the “big break†to the “shoulderless shoulder†period requires the strengthening of fertilizer and water management. The main use of potash fertilizer is nitrogenous fertilizer, which may lead to leggy. After the fertilization, the soil can also be combined with soil. During this stage of growth, we must keep the soil moist and apply adequate irrigation to promote the growth of roots and leaves. The root growth of radish meat requires a large amount of fertilizer and water to meet the needs of the growth of fleshy roots, applying 10 kilograms of compound fertilizer per acre, combined with foliar spraying of Opulum, gene activators, foliar and other foliar fertilizers. Use a chemical fertilizer of high concentration to directly shower on the plants. Some varieties have long roots of meat and expose more ground. It is necessary to properly increase the height of soil, reduce light exposure, and make the flesh root white and improve quality. V. Diseases and Insect Pests Prevention Summer cultivation of radish main diseases and pests are black rot, yellow song strips, aphids and so on. Black rot is a bacterial disease. At the beginning of the disease, 72% of agricultural streptomycin sulfate, bacteriological agents, enemy coughers, and love killers can be alternately sprayed. The yellow stripe jumps can be controlled by the killing powers, Bataan, insecticide pairs, dichlorvos, etc. The locusts can be controlled by big heroes, dimethoate, etc. The underground pests can be seeded with Miller or Yishubao. Or use Miller or Yishubao to apply to the sowing ditch or seed hole for control when applying base fertilizer. Six, timely harvest summer radish grows quickly, generally sowing to the beginning of the harvest is about 40 days, the harvest period within 10 days, too late harvest easily lead to hollow.
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