Recently, temperatures in various parts of the province have plummeted, and facilities such as greenhouses and plastic greenhouses have also reached the deadline for membranes. Except for some facilities that have been planted with vegetables, the unused greenhouses must be suffocated and sterilized before and after decaling to create a good growing environment for the vegetables to be planted.
Avoid immediately planting vegetables after detaining the membrane. Before vegetable planting, most of the vegetable farmers applied a large amount of organic fertilizer such as chicken droppings and duck droppings. Some of these organic fertilizers were not completely decomposed. It is easy to burn the root system of the plant, and second, the volatilized ammonia from the organic fertilizer is easy to smoke the seedlings. Therefore, after the vegetable sheds the film, avoid immediately planting vegetables. It is best to close the tuyere first and then boring for a few days to accelerate the decomposition of organic manure such as chicken manure. In order to catch up with the market time for vegetables, the vegetables needed to be planted immediately after the sheds are trapped in the greenhouse. After the planting, the ventilation should be strengthened to prevent the ammonia from harm.
Before the planting of vegetables, we must pay attention to some farmers who think that the chicken manure of my family has been decomposed and does not need to be stuffy. It is not true that the other role of the ditch is warm. In autumn and winter and other low-temperature seasons, the ground temperature is relatively low. If the vegetables are planted immediately after the film is buckled, the slow seedling temperature often leads to a long seedling period. If the film is warmed before the vegetable is planted, it will be very beneficial to the slow seedlings after planting.
After detaining the membrane, it is necessary to disinfect the shed in order to disinfect the shed in order to reduce the incidence of vegetables. The greenhouse space and the farm tools in the shed can be disinfected by fumigation with sulphur powder after the film is buckled. Specific methods: 1 kg of sulfur powder per acre with appropriate amount of sawdust, and mix well after the points in the greenhouse, the farm tools used are also placed in the shed, closed fumigation after ignition for 12 hours; also use 45% per acre Bacterial agent 400 grams of aerosol, fumigation for 3 to 5 days to disinfect and sterilize; the wall, brackets, production tools, etc. in the shed can be separately cleared 400 grams of aerosol, fumigation for 3 to 5 days to disinfect and sterilize; wall inside the shed The body, stents, and production tools can be individually disinfected with formalin 100-fold sprays; for sheds with serious soil-borne diseases, 50% carbendazim and 4 ml each can be mixed with appropriate amount of fine soil per acre. Spread evenly in the vegetable colonization ditch. The above method can be carried out at the same time with the boring shed. Note that the ventilation of the shed ventilation opening must be opened 1~2 days before the vegetable is planted so as to avoid the residual gas causing harm to the vegetables.
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