In the autumn and winter, Chinese cabbage is prone to soft rot during continuous cropping and loose management, and will spread rapidly under high temperature and high humidity conditions. A few days ago, tropical storms swept across the eastern and central parts of the province, and strong precipitation brought certain adverse effects to the upcoming autumn and winter cabbage production. To this end, the author reminds the majority of vegetable farmers to implement the principle of “prevention first, comprehensive prevention and control†and do a good job in the prevention and control of soft rot of Chinese cabbage.
First, the variety selection Choose high-yield, stable production, disease resistance, strong anti-70, Lubai series, Qiuzhen white series and other varieties.
Second, planting in the treatment After soaking in water for 2 hours, seed dressing with 1% - 15% of the seed amount of agricultural anti-751.
3. Soil treatment Choose land plots that are loose and fertile, rich in organic matter, and convenient for irrigation and drainage. Non-parasitic crops such as non-cruciferous crops are used for more than three years. When the soil is fertilized, the soil is disinfected with 2 kg of carbendazim, and 1.5 kg of trichlorfon or phoxim particles are used to kill the pests to avoid wounds.
Fourth, the appropriate seeding and seedling "three or five days before and after the fall" for the appropriate sowing time, sowing seeds are prone to soft rot, 5-6 leaves when planting, single plant transplanting.
Fifth, do a good job of water management Seedling period to "three water Qi Miao, Wushui fixed tree." Watering during the growing season, watering in moderation, so that the soil is always kept moist. Watering is carried out before 10 am or after 4 pm. After the hot rain, the small well water should be poured to cool down. There is no long-term accumulation of water in the field.
6. Apply enough base fertilizer and early topdressing When planting the ground, apply 5,000 kg of fully decomposed organic fertilizer, 50 kg of NPK fertilizer, 15 kg of compound fertilizer after seedling or transplanting, and 10 kg of urea and potassium sulfate in the rosette period. At the peak of growth, foliar fertilizers such as Shibao, Lucaibao, urea + potassium dihydrogen phosphate can be sprayed on the foliage.
VII. Early prevention of pests Aphids are controlled by Zhenqi, pyrhhodium chloride, and rifampicin. The cabbage caterpillars and diamondback moths are controlled by BT, chlorpyrifos No. 3, and pyrethroid pesticides.
Eight, chemical control Before the onset, use "Fengling" 50 grams of water 50 kg, poured or sprayed along the side of the vegetable root control. It can also be sprayed or watered 2-3 times with 0.015% agricultural anti-751.
At the beginning of the disease, spray and watering the liquid and alternately rotate the medicine. The liquid can be selected from 72% agricultural streptomycin sulfate or neomycin (3000-4000 times liquid, 30% DT800 times liquid, 14% copper ammonia 300-400). Double liquid, can also be used for human or veterinary chloramphenicol 15000 times liquid, Fengling 1000 times liquid, 70% dikesong 700-1000 times liquid, 7-8 days sprinkler irrigation prevention, continuous prevention and control 2-3 times.
First, the variety selection Choose high-yield, stable production, disease resistance, strong anti-70, Lubai series, Qiuzhen white series and other varieties.
Second, planting in the treatment After soaking in water for 2 hours, seed dressing with 1% - 15% of the seed amount of agricultural anti-751.
3. Soil treatment Choose land plots that are loose and fertile, rich in organic matter, and convenient for irrigation and drainage. Non-parasitic crops such as non-cruciferous crops are used for more than three years. When the soil is fertilized, the soil is disinfected with 2 kg of carbendazim, and 1.5 kg of trichlorfon or phoxim particles are used to kill the pests to avoid wounds.
Fourth, the appropriate seeding and seedling "three or five days before and after the fall" for the appropriate sowing time, sowing seeds are prone to soft rot, 5-6 leaves when planting, single plant transplanting.
Fifth, do a good job of water management Seedling period to "three water Qi Miao, Wushui fixed tree." Watering during the growing season, watering in moderation, so that the soil is always kept moist. Watering is carried out before 10 am or after 4 pm. After the hot rain, the small well water should be poured to cool down. There is no long-term accumulation of water in the field.
6. Apply enough base fertilizer and early topdressing When planting the ground, apply 5,000 kg of fully decomposed organic fertilizer, 50 kg of NPK fertilizer, 15 kg of compound fertilizer after seedling or transplanting, and 10 kg of urea and potassium sulfate in the rosette period. At the peak of growth, foliar fertilizers such as Shibao, Lucaibao, urea + potassium dihydrogen phosphate can be sprayed on the foliage.
VII. Early prevention of pests Aphids are controlled by Zhenqi, pyrhhodium chloride, and rifampicin. The cabbage caterpillars and diamondback moths are controlled by BT, chlorpyrifos No. 3, and pyrethroid pesticides.
Eight, chemical control Before the onset, use "Fengling" 50 grams of water 50 kg, poured or sprayed along the side of the vegetable root control. It can also be sprayed or watered 2-3 times with 0.015% agricultural anti-751.
At the beginning of the disease, spray and watering the liquid and alternately rotate the medicine. The liquid can be selected from 72% agricultural streptomycin sulfate or neomycin (3000-4000 times liquid, 30% DT800 times liquid, 14% copper ammonia 300-400). Double liquid, can also be used for human or veterinary chloramphenicol 15000 times liquid, Fengling 1000 times liquid, 70% dikesong 700-1000 times liquid, 7-8 days sprinkler irrigation prevention, continuous prevention and control 2-3 times.
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