Just after the Spring Festival, many people are still immersed in the festive atmosphere, but this is also the time for the spring vegetable seedlings to be planted. In order to catch the crop, some vegetable farmers do not smoke the shed, do not turn it deeply, and even pull out the garden on the same day and plant the same day. , Often lead to poor growth of vegetables after planting, at the same time the current temperature is still low, low temperature and low light will bring a great challenge to the management of vegetable seedlings. I hope that the majority of vegetable farmers can take measures in advance to avoid unnecessary losses as much as possible.
1. Thorough disinfection and cleaning of the garden
After the vegetable garden is pulled out, the vegetable grower should immediately clear the litter out of the shed, and the root system should also be removed as much as possible, and taken out of the shed to bury or destroy it. When there are no crops in the shed, you can spray the ground surface with hymexazol, fludioxonil and other agents, and smoke the shed with chlorothalonil smoke agent for 12 hours to kill pathogenic bacteria attached to the surface, air, columns, walls, etc., and colonize Open the vents for ventilation 2 days before.
2. Manure must be fully decomposed
In the low temperature period, the ventilation time of the greenhouse is short, coupled with the mulching film, if the organic fertilizers such as incompletely decomposed manure are applied, the harmful gas generated during fermentation will not escape, and the root system and the plant leaves close to the damaged part of the mulching film will be damaged. Therefore, when fertilizing the vegetables in the greenhouse, pay attention to whether the manure has been fully decomposed, or directly select good-quality commercial organic fertilizers. Just in case, before entering the shed, mix the manure with a decomposing agent and then decompose it again. After the manure is put into the shed, do not rush to plant vegetables. You should pour the water first, and then close the shed to raise the temperature. After watering, if there is no ammonia smell in the shed and the moisture content is right, you can plant vegetables.
Three, check the seedlings to be careful
Many vegetable farmers were careless when inspecting the seedlings. They just checked the quantity and ignored the quality of the seedlings. As a result, problems such as many dead seedlings and slow seedlings appeared after planting, which seriously affected the yield and benefits of vegetables. Remind vegetable farmers that when receiving seedlings, you must carefully check the growth of the seedlings, be sure to reach the standard of strong seedlings, and don't accept the seedlings carelessly.
Fourth, remove the flowers in time
During the Spring Festival, it is essential to remove the broken flowers, especially for some vegetables whose flowers are not easy to fall off, such as legumes, peppers, and eggplants. If the flowers are not picked in time, especially when there are more cloudy days, it is easy to cause diseases such as gray mold and increase the number of deformed fruits. There is no good alternative to the operation of defloration so far. It is recommended that the vegetable farmers should remove the petals remaining on the fruit in time when they are busy.
Five, the shed should be properly ventilated
During the holiday season, many vegetable farmers cannot ventilate the shed in time due to visiting relatives and friends. Some open large vents early in the morning and close them late at night. Some even do not open vents throughout the day. The temperature and humidity in the shed will naturally be affected. Influence, often lead to the occurrence of pests and diseases. It is necessary to timely and appropriate ventilation, control the temperature and humidity in the shed, promote flower bud differentiation and fruit setting, and reduce the occurrence of pests and diseases.
6. Disease prevention and treatment must be on the right path
Since there is not enough time to manage the vegetables in the greenhouse during the Spring Festival, it is easy to cause plant diseases, lack of nutrients, or difficulty in setting fruits after the festival. It is recommended that vegetable farmers first identify the cause of the disease, prescribe the right medicine, and do not change the concentration of anthers at will. Once phytotoxicity occurs, you can spray Aidoshou, brassin, chitin, amino acids, seaweed and other functional products in time to improve plant resistance.
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Ventilation is one of the most important components in a successful greenhouse.
If there is no proper ventilation, greenhouses and their growing plants can become prone to problems. The main purposes of ventilation are to regulate the temperature and humidity to the optimal level, and to ensure movement of air and thus prevent build-up of plant pathogens (such as Botrytis cinerea) that prefer still air conditions. Ventilation also ensures a supply of fresh air for photosynthesis and plant respiration, and may enable important pollinators to access the greenhouse crop.
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