Greenhouse hanging thermometer has tricks

In greenhouse vegetable production, the vegetable cultivators hang thermometers in the shed is very casual, some of the thermometers are hung under the vents in the greenhouse or on the back wall, and some of the vegetables are just planted and the thermometers are hung over 1 meter from the growing point of the vegetables. Department. The thermometer is hung under the vents. Once ventilated, the outside cold air enters the shed, and the temperature under the vents rapidly decreases. If the vents are adjusted according to the display temperature, the temperature in the shed will be too high, which will affect the normal growth of the vegetables. When the thermometer is hung on the back wall of the greenhouse, it cannot accurately reflect the temperature inside the greenhouse. It cannot be used as a basis for adjusting the temperature. The thermometer was hung over 1 meter from the growing point of the vegetables, and the high temperature was too high to accurately reflect the temperature near the growing point of the vegetables.

Therefore, the preferred suspension position of the thermometer is the middle of the greenhouse, which is far from the vent, doorway, wall, etc., and is about 10 cm away from the growing point of the vegetables. This can more accurately reflect the temperature of the growing location of the vegetables. In addition, multiple thermometers should be hung in the shed to measure the temperature and take the average value, so as to reduce the error and ensure that the management measures are not mistaken.

Canned tuna

TUNA,High Quality TUNA,TUNA Details, CN

Tropical Food Manufacturing (Ningbo) Co., LTd , https://www.tropical-food.com