During the cold season, the weather gradually goes from cool to cold. At this time, it presents a scene of high autumn, which is also very beneficial to the growth of greenhouse vegetables. It is also a favorable period for the cultivation and breeding of winter and spring shed vegetables. However, in the cold season, greenhouse vegetables are also prone to breed various pests and diseases, and the impact on crops is very serious. So how do you manage the greenhouse vegetables in the cold season? Let's learn together.
1. Strengthen field management
Planting leafy vegetables, melons and melons should strengthen field management, irrigation, drought prevention, fertilizer application, growth promotion, spraying of pollution-free pesticides to control pests and diseases, timely harvesting, and supply to the market.
2, cultivate the ground power
Use fine weather, turn over shed vegetables, expose sun, weather the soil, apply organic fertilizer, spray soil disinfectant, sterilize and eliminate insects, and improve fertility. In the new vegetable garden, steel pipes and bamboo sheds can be added, and the planting area of ​​vegetable protection areas will be gradually expanded.
3, the renovation and maintenance of the greenhouse
If the bamboo shed has been used for several years in the old vegetable area, it must be re-updated. To improve the winter and spring shed anti-freeze insulation function.
4, winter spring shed seedlings and management
In the winter and spring shed vegetable breeding period, seed preparation, seed treatment, disinfection, soaking and germination should be done.
5. Pest control
(1) Prevention and control of leafy vegetables and pests. There are mainly pests such as jumping armor, diamondback moth, aphid, and Spodoptera litura. Chinese cabbage dry heart disease, soft rot, viral disease, clubroot disease, downy mildew and other diseases occur. It can be used to control Spodoptera litura and Plutella xylostella with the help of the farmer's music or the farmer's music or Jingbaoer (Javier salt) or DuPont's hit or Haizheng Sanling. Cabbage soft rot is controlled by agricultural streptomycin or by killing or killing bacteria and adding rot.
(2) Autumn legume pest control. Beans mainly include leaf miners, bean wild carp, coal mold, rust, blight and other pests and diseases, and should be done well. Kidney Bean can be used to control pea pods with 52.25% agricultural land 1200 times liquid or 4000 times liquid plus worm-killing 1500 times liquid, spray 50% gram of 5000 times liquid or avermectin to control leaf miner, and control tobacco powder. Use 20% lanning (acetamid) 2000 times or 20% big harvest 6th 2000 times liquid plus green ying 200 times liquid.
(3) Prevention and treatment of root knot nematode disease and verticillium wilt. Eggplant, tomato, cucumber, celery, etc., which are planted and raised, may be exposed to root-knot nematode disease. It can be used to prevent and treat the 5% good winter G or the good gas G (2-3 grams per hole) before the transplanting.
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