1. Choosing suitable soil to grow radish should choose the crop that consumes less fertilizer, has more organic material left, and has no pests of the same species. The cruciferous vegetables need to be avoided as a forehead, otherwise it is easy to cause diseases. Radishes have a wide adaptability to sandy soil. In order to obtain high-yield and high-quality products, it is still better to use deep, loose, well-drained and relatively fertile sandy loam soils. When cultivated in a suitable soil, the growth of fleshy roots can be fully expanded. The shape is correct, the skin is clean, and the color is beautiful.
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2, deep plowing and soil preparation, uniform fertilization, so as to promote the effective nutrients and beneficial microorganisms in the soil increase, and can loose air, is conducive to the absorption of nutrients and moisture absorption of roots, so that the leaf area is rapidly expanding, meat root accelerated expansion. Each acre can apply 75kg compound fertilizer as base fertilizer. Then carry out soil disinfection and control of underground pests. The bactericide is selected from 50% carbendazim 600 times solution or 70% thiophanate-methyl 800-1000 times solution spray, and the insecticide can be sprayed with 48% roxithmidine 800-1000 times solution.
3. The quality of sown radish seeds has a great influence on the growth and yield of radish plants. In order to make the seedlings neat, seedling-full and seedling-strong, seeds should be carefully selected, and only full, sound seeds should be used to eliminate pods, crushed, and mildewed seeds. The seeding rate depends on the seed quality, soil quality, climate, and seeding method. Autumn and winter radishes use on-demand or drill. The amount of seed should be determined according to the density of the seedlings, and the on-demand seedlings should be 25-30 cm in diameter, with 4 to 5 seeds per seed, and the seeds should be scattered in the nest so as to avoid crowding after emergence and affecting the seedling quality.
4. Seedlings sprout quickly after unearthing, and they need time seedlings to prevent crowding, shading and causing leggy. To set the seedlings early, split between the seedlings, timely seedlings to ensure Miao Qi and Miao Zhuang. Intermittent seedlings are usually 2 to 3 times in size, with the exception of the seedlings whose weak, deformed, and pest-infested species are removed.
5, field management 1 reasonable watering: watering mainly based on the growth characteristics of radish, the growth of each water requirement and climatic conditions, soil conditions to determine. After sowing, if the weather is arid, one should immediately pour water, and then start pouring once again when the seedlings emerge, keep the ground moist, ensure that the seedlings are neat, and reduce the occurrence of viral diseases. If it is rainy, it must be drained in time to prevent death.
2Appropriate top-dressing: Winter radish is a large and medium-sized radish variety with a long growing period. Based on the application of basal fertilizer before sowing, topdressing should be applied appropriately. Especially for plots with low soil fertility and insufficient basal fertilizer, topdressing can be significantly improved. Yield. Nitrogen fertilization should be used to water or fertilize water. After the radish “breaks bellyâ€, it enters the rose growing stage, that is, the rosette period. In order to promote the expansion of the leaf area, it is also appropriate to apply a quick-release nitrogen fertilizer; when it enters into the prosperous period of the root enlargement of the fleshy root, the top-dressing compound fertilizer will help the root enlargement of the flesh. During the first 20 days before harvest, once a week, spraying 0.2% potassium dihydrogen phosphate two times for foliar dressing was effective in improving yield and quality of fleshy roots.
3 cultivating weeds and pests Radish requires many times of cultivating tillage in the growing period of radish, especially at the seedling stage, the temperature is relatively higher, rain is more, weeds grow rapidly, and weeding and weeding. In high ridge cultivation, the soil on the ridge is easily washed by rain, and the cultivator needs to be combined with soil. Long-shaped naked radish, because the root neck is slender and weak, often easy to bend, lodging, the initial stage of growth needs to be bred to expand the root, to prevent the formation of curved radish after lodging. At the end of the rosette, the leaves were already ridged and the cultivator was stopped. Weeding was done only by hand.
The pests of radish are mainly maggots and soft rot. Each acre is sprayed with 12% agricultural Streptomycin Sulfate WP 10 million units plus water 50~75Kg or with 57.6% chlorothalonil dry granules 1000~1200 times. Irrigation. For controlling aphids, Imidacloprids can be used to spray water.
6. The timely harvest of winter radish harvest depends on the variety and the time to market. The harvest yield is low and the knots are not tasted. The harvested meat roots are frozen or hollow, and the quality deteriorates. When the diameter of the root expands to 8~10 cm and the length is 25~30 cm, the harvesting is more appropriate.