Seedlings weeding in the seedlings began to pull the "10" when the first time the seedlings, should not be late as soon as possible, between the small seedlings. When the seedlings have 4 true leaves, the second time the seedlings, between the weak seedlings and diseased seedlings, combined with market conditions began to seedlings listed. Combined with seedlings to remove weeds.
Fertilizer management Summer cabbage needs large amounts of water and should always be watered in the morning and evening. Apply fertilizer on a balanced basis. Based on 1500 kg of organic fertilizer per hectare of base fertilizer or 25 kg of compound fertilizer, see if the plant grows to apply appropriate amount of urea and other available nitrogen fertilizer. Apply lightly, lightly before and after the concentration, every 5 to 7 days. Until 10 days before harvesting, stop fertilizing and combine watering and fertilization.
Prevention and treatment of pests Summer Chinese cabbage has a short growing period, and the occurrence of pests and diseases and safety intervals can be controlled by spraying 1-2 times. The control of lepidoptera pests, such as cabbage caterpillar, diamondback moth, and vegetable aphid, can be sprayed with a Bacillus thuringiensis preparation. For control of aphids, imidacloprid, acetamiprid, and anti-indolyl can be used for spraying. For the control of downy mildew, chlorothalonil, antiviral 64% MnZn WP, AZM 69% manganese zinc dianhydride granules, metalaxyl and other drug sprays may be used. Note alternate rotation of medications. Every 7-10 days, continuous control of 2 or 3 times. For the control of soft rot, the use of agricultural streptomycin sulfate spray. For the prevention and treatment of anthrax and black spot, ankang manganese 69% manganese zinc dianhydride dispersible granules, anthraquinone Fumei 80% rifampicin zinc WP can be sprayed. Prevention of viral diseases, available virus A20% do not èƒ copper acetate WP or phytosanitary spirit 1.5% alkanol sulfate copper sulfate water emulsion spray.
Heat Meters are one kind of meters measuring the heat
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