Field management. The seedlings should be early and the seedlings should be late, and the radishes should not be transplanted, nor can they be replenished. Combine the seedlings for cultivating and weeding. When cultivating, it is shallow and deep, avoiding root damage. The first and second seedlings should be shallowly ploughed, the topsoil should be loosened, and the last deep ploughing should be carried out, and the soil of the gully should be cultivated on the surface to prevent the seedlings from falling. Watering should be based on the crop's growth period, rainfall, temperature, soil quality, groundwater level, air and soil moisture conditions. Germination period: After sowing, the water should be fully watered. The effective water content of the soil should be above 80%. In the dry year, the summer and autumn radishes adopt “three waters and clear seedlingsâ€, that is, one water after sowing, one soil and one water, one seedling and one water. To prevent viral diseases from occurring at high temperatures. Seedling stage: The roots of the seedling stage are shallow and the water demand is small. The effective water content of the soil should be above 60%. Frequent application of new high-fat film moisturizing and anti-bacterial infection. The leaf growth period: the number of leaves in this period is increasing, the leaf area is gradually increasing, the fleshy roots are also beginning to expand, and the water demand is large, but moderate irrigation is needed to prevent excessive growth of the aboveground parts. The fleshy roots are inflated; in this period, the water demand is the largest, and the water should be fully evenly watered. The effective soil water content should be above 70%-80% to prevent the heart and roots.
Fertilization period. According to the radish fertilizer requirement, soil nutrient status and fertilizer type, through soil testing, determine the corresponding fertilization amount and fertilization method, and implement balanced fertilization according to the combination of organic and inorganic, base fertilizer and topdressing. The top dressing time is determined according to the soil fertility and growth status, and is generally carried out twice in the seedling stage, the leaf growth stage and the fleshy root growth period. In the seedling stage and leaf growth period, the application of nitrogen fertilizer is mainly applied, and 15 kg of nitrogen, phosphorus and potassium compound fertilizer is applied. When the fleshy roots grow, the phosphorus and potassium fertilizer should be applied more, and the fruit and fruit should be sprayed to improve the nutrient capacity of the underground fruit. And expand vitality to promote developmental speed.
Pest Control. The main diseases of radish are soft rot, white spot, black spot and mosaic virus, and these diseases should be combined with prevention and treatment. It is mainly to use some light-filled non-toxic pesticides, new high-fat membranes, and general guards to prevent the disease.
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