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How to solve the problem of rotten leaves in greenhouse vegetables with a temperature and humidity recorder

Release time: 2020-01-08 Click times: 131 Article source: Agricultural Instrument Network

The temperature and humidity recorder is a modern agricultural meteorological instrument designed and developed by Top Cloud Nong, which is mainly used to measure the temperature and humidity in the environment. We know that temperature and humidity are very important in the process of plant growth and development. They can affect the growth and development of plants. When the plant is in the proper temperature and humidity, the photosynthesis and transpiration of the plant are the strongest and can accelerate plant nutrition. The synthesis of ingredients promotes the efficiency of the root system to absorb mineral nutrients. Therefore, in modern agricultural production management, people need to pay special attention to the changes in environmental temperature and humidity. However, in a closed environment, excessive temperature and humidity can cause problems such as plant decay. Therefore, in greenhouse planting work, people often use temperature and humidity recorders to manage.

This is because when the temperature and humidity in the greenhouse are too high, it can cause problems such as rotten leaves in plants. When the temperature decreases, the humidity in the shed increases, and some wet-loving diseases enter a high-incidence period. Many diseases can cause the stalks or fruits of the vegetable plants to rot. Therefore, when managing the greenhouse, you need to obtain the temperature and humidity data of the temperature and humidity recorder , and then Reduce indoor humidity in a timely manner through ventilation and dehumidification. At the same time, there are other ways to increase the temperature of the greenhouse contents, so that the crops can grow out of season.

So spring and winter management. In these two seasons, the wind and temperature are low, the ventilation time in the shed is shortened, and the humidity in the shed is high. In addition, the humidity in the shed is increased sharply with watering and fertilizing. After watering, properly close the air outlet at night, and open the air outlet early in the morning the next day to increase the ventilation, reduce the humidity in the shed, and reduce the occurrence of diseases.

So the general solution is to divide the ventilation and discharge the moisture. Appropriate thinning on sunny days, reducing transpiration, and promoting dew drying. Choosing continuous sunny days, dredging the lower and inner leaves, improving field ventilation and light transmission, can also reduce the transpiration area of leaves, and reduce the amount of water evaporation. Or spread straw in the operation. The straw has the function of regulating humidity. It absorbs water when the humidity is high at night and disperses during the day to maintain a stable humidity and reduce the occurrence of dew.

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