Autumn sowing white radish field cultivation points
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October 11 12:10:38, 2023
White radish is one of the main vegetable varieties supplied by the winter market and consumed by the masses. It has entered the critical period of post-emergence management of white radish fields. In order to help the masses to grow white radish, we will introduce the key cultivation points of autumn sowing white radish for the reference of farmers' friends:
I. Selection of land preparation
Radish is a cruciferous crop, which cannot be replanted with the same crops. The radish rhizome is coarse, and it is advisable to choose sandy loam with thick soil layer, fertile soil and good ventilation. Planting plots should be deeply ploughed by 20 cm, and rotated and ploughed to facilitate the growth of radish rhizome.
Second, ridge fertilization
The yield of radish is high, the soil nutrient water consumption is large, the ridge planting is conducive to drainage and promote the expansion of rhizome; in order to ensure the quality of radish, fertilization is mainly based on farmyard manure and supplemented by chemical fertilizer. 190 kg of farmer's fertilizer, 20-25 kg of calcium, or 60 kg of NPK compound fertilizer.
Third, the selection of good varieties
The variety can choose the Japanese series Kobayashi, the disease-resistant general state, and can also be matched with local self-retained varieties. But the seeds must be new, and the seeds that were newly produced in the same year can be used to prevent radish convulsions.
Fourth, timely planting
Sowing too early, when the radish is swollen, there is much rain, heavy disease, and poor quality. At present, the best period for the cultivation of white radish has passed, and the masses must pay close attention to the management of emergence. The white radish is planted by spot or open seeding ditch. The row spacing is generally 30×30 cm, and the seed is about 200-250 g per acre.
V. Miao Ding Miao
When the radish emergence grows to 2-3 true leaves, it is necessary to carry out the seedlings in time, leaving 2 plants per hole; when growing to 5 true leaves, the seedlings can only be left at each hole, so that the individual seedlings grow robustly.
Sixth, topdressing management
After 30 days of radish emergence, the fertilizer can be applied to the roots when the soil is in good condition. Use 5-10 kg of urea per acre, using acupoints. In the case of dry weather, 0.3% potassium dihydrogen phosphate can be sprayed on the foliar surface to facilitate root enlargement and increase yield.
Seven, prevention and treatment of pests and diseases
Radish diseases mainly include black rot, mosaic virus disease and deficiency disease. In the early stage of the disease, 57% of metalaxyl manganese zinc, 72% agricultural streptomycin, 15% bactericidal 70% methyl thiophanate and the like are used. Water pouring or spraying, once every 5-7 days, a total of 2 times; the main pests that harm radish are yellow curved beetle, aphid, cabbage caterpillar, diamondback moth, etc., can be controlled with 5% cypermethrin 2000 times solution, At intervals of 7 days, even prevention twice, it is forbidden to use high-toxic and high-residue pesticides; radish deficiency disease should be applied to 1 kg of borax and zinc fertilizer after 30 days of emergence, and 0.2% borax solution should be sprayed outside the initial stage of expansion.
Eight, timely harvest
When the individual radish grows to 1.5-2 kg, when the old leaves of the ground are yellow, it is the timely harvest of the radish. If the growth period is too long or suffers from freezing damage, the quality of the radish should be prevented from becoming worse or even worse.
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