Prevent and control diseases and temperature hygrometers to help
In an interview with Dongxia Township in Qingzhou City, the reporter saw a number of vegetable farmers using temperature and humidity meters in their greenhouses. General vegetable farmers will only hang thermometers in the shed. What does the hygrometer do?
The local vegetable farmer Zhao told reporters that the thermometer and hygrometer was used when he had previously cultivated edible mushrooms. After changing the greenhouse vegetables, he was hung in a greenhouse. Unexpectedly, after using it, it can really play a big role. The humidity in the shed is clear at a glance. It is easy to control accurately, and it is beneficial to reduce the occurrence of high humidity disease. In the first year, Zhao, the vegetable grower, had much fewer diseases in the shed than other people. This made a lot of shed old hands very surprised. Since then, many local farmers have used a thermometer and hygrometer.
High humidity is one of the biggest obstacles in the production of vegetables in the greenhouse in the winter. There is no hygrometer in the vegetable shed, and it is difficult to take measures to control the air humidity in the shed and suppress the occurrence of disease. By hanging the temperature and humidity meter inside the shed to accurately control the temperature and humidity in the shed, physical conditions can be used to control the environmental conditions, maintain the balance of temperature and humidity in the shed, and better control the occurrence of diseases.
For example, the most serious damage in winter greenhouses is gray mold, which is very harmful under low temperature and high humidity. When the temperature in the greenhouse is about 20°C, and the air humidity is higher than 90%, the gray mold will not be large in 1-2 days. Outbreaks; Downy mildew at about 18 °C, the required humidity is higher than 83%, after 3-6 hours to complete the infection. If the accurate temperature and humidity in the shed can be known through a thermometer and hygrometer, however, measures can be taken to control the humidity in the shed to be under the proper humidity required for the morbidity of the bacterium to control the occurrence of the disease. Interested farmers can give it a try.
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