How to take care of vegetables in the greenhouse during the cold season?

During the cold dew season, the weather gradually changes from cool to cold. At this time, it presents a scene of high autumn air. For greenhouse vegetables, it is also very conducive to their growth. It is also a favorable period for cultivation and seedling cultivation of vegetables in winter and spring. However, in the cold season, greenhouse vegetables are also prone to various diseases and insect pests, which have a serious impact on crops. So how to take care of vegetables in the greenhouse during the cold season? Let's learn together.

Greenhouse Vegetable Management in Cold Dew Season

1. Strengthen field management

For the planting of leafy vegetables, melons and solanaceous melons, field management should be strengthened, irrigation, drought prevention, topdressing of fertilizers to promote growth, spraying of pollution-free pesticides to prevent pests and diseases, timely harvesting and supply to the market.

2. Cultivating soil power

Make use of sunny weather, replant vegetable gardens, expose to the sun and weather the soil, apply organic fertilizer, spray soil disinfectant, sterilize and kill insects, and improve fertility. In the new vegetable garden, steel pipe greenhouses and bamboo sheds can be added to gradually expand the planting area of ​​vegetable protection areas.

3. Renewal and maintenance of greenhouses

If the bamboo shed that has been used for several years in the old vegetable area is severely damaged, it must be renewed. In order to improve the winter and spring vegetable shed antifreeze and heat preservation function.

Key Points of Greenhouse Vegetable Management in Cold Dew Season

4. Winter and spring shed vegetable seedlings and management

During the winter and spring shed vegetable seedling period, seed purchase, seed treatment, disinfection, seed soaking and germination should be done well.

5. Pest control

(1) Control of plant diseases and insect pests of leafy vegetables. There are mainly pests such as jumping beetle, diamondback moth, aphids, and Spodoptera litura. Diseases such as dry Chinese cabbage heartburn, soft rot, virus disease, root edema, and downy mildew occurred. It can be used to control Spodoptera litura and Plutella xylostella, and use Le Siben to prevent and control vaulting beetles. The soft rot of cabbage is controlled with agricultural streptomycin or serotonin or Mengke bacteria plus cleaning agents.

(2) Prevention and control of bean pests in autumn. Beans mainly include leaf miner fly, bean field borer, coal mold, rust, fusarium wilt and other diseases and insect pests, which should be controlled. For cowpea, use 52.25% Nongdile 1200 times liquid or hit 4000 times liquid plus Michongling 1500 times liquid to control bean pod borers, spray 50% Qiang 5000 times liquid or abamectin to control leaf miners and whitefly. Use 20% Lanning (acetamiprid) 2000 times or 20% Dafengshou No. 6 2000 times liquid plus Luying 200 times liquid.

(3) Control of root knot nematode disease and verticillium wilt. Eggplant, tomato, cucumber, celery, etc. planted and raised seedlings may suffer from root-knot nematode disease. Before transplanting, it can be used to break the membrane and dig holes and sprinkle 5% Hao Nian Dong G or Fu Qi I G (2-3 grams per hole) for prevention.

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