(1) Seed selection: Choosing an excellent variety is one of the key technologies for producing pollution-free Chinese cabbage.
1 Select Chinese cabbage varieties with strong resistance to pests and diseases, reduce or not use pesticides to reduce pesticide pollution. According to the pests and diseases that are prone to occur in the cultivated areas, the corresponding pest-resistant varieties should be used. 2 Select the variety according to cultivation conditions, consumption habits and market demand. Therefore, we should choose excellent varieties with high yield and good commercial quality. The seed quality meets the requirements of GB16715-1999. Refusal to use genetically modified Chinese cabbage varieties.
(2) Seed treatment:
1 Chemical dressing: seed dressing with 50% chlorhexidine wettable powder with a seed weight of 0.2% to 0.3%, or use 47% of the seed weight of ruthenium WP, or 50% of seed weight 0.4% Seed dressing with DT wettable powder or 50% Fumei double wettable powder, or 150 grams with Fengling 50-100 grams (anti-downy mildew, soft rot, black rot, angular spot, etc.).
2 Wentang soaking seeds: soak seeds in warm water at 50 °C for 25 minutes, cool and dry to sow (anti-black spot).
(3) Pest control in the planting area: In the area where the underground pests are seriously damaged, use 5% inhibition of Taibao emulsifiable concentrate 1000-2000 times liquid, or 25% carbaryl WP 1500-400 times before mixing. Into the soil.
1 Select Chinese cabbage varieties with strong resistance to pests and diseases, reduce or not use pesticides to reduce pesticide pollution. According to the pests and diseases that are prone to occur in the cultivated areas, the corresponding pest-resistant varieties should be used. 2 Select the variety according to cultivation conditions, consumption habits and market demand. Therefore, we should choose excellent varieties with high yield and good commercial quality. The seed quality meets the requirements of GB16715-1999. Refusal to use genetically modified Chinese cabbage varieties.
(2) Seed treatment:
1 Chemical dressing: seed dressing with 50% chlorhexidine wettable powder with a seed weight of 0.2% to 0.3%, or use 47% of the seed weight of ruthenium WP, or 50% of seed weight 0.4% Seed dressing with DT wettable powder or 50% Fumei double wettable powder, or 150 grams with Fengling 50-100 grams (anti-downy mildew, soft rot, black rot, angular spot, etc.).
2 Wentang soaking seeds: soak seeds in warm water at 50 °C for 25 minutes, cool and dry to sow (anti-black spot).
(3) Pest control in the planting area: In the area where the underground pests are seriously damaged, use 5% inhibition of Taibao emulsifiable concentrate 1000-2000 times liquid, or 25% carbaryl WP 1500-400 times before mixing. Into the soil.
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