How to keep warm in winter greenhouse

For greenhouse planting, it is to control the local environment and adjust the temperature and humidity in the shed to meet the planting requirements of crops. However, in the cold winter, due to climate reasons, the temperature in the shed will also become lower. If you want to prevent the crops in the shed from reducing the production, it is necessary to solve the heat preservation problem of the greenhouse.

The following are several ways to keep warm in the greenhouse in winter, which can effectively protect the growth of crops in the greenhouse in cold weather. Let’s learn about them together.

one Prevent air leakage in the greenhouse

Check whether the solar greenhouse film is in good condition. Check the plastic film carefully, and repair any leaks in time. The plastic film spread on the ground should be pressed firmly with soil, which can effectively invade the cold air into the greenhouse.

Two replaced the straw curtain with an insulation quilt

Greenhouse thermal insulation quilt not only has better thermal insulation effect than traditional straw curtains, but also the surface of the thermal insulation quilt is smooth and soft, which can prevent the film from being scratched and cause air leakage in the greenhouse. When the weather is fine, pull up the heat preservation to raise the temperature of the greenhouse. When the weather is bad, put the heat preservation down to keep the heat preservation down, which can reduce the heat loss in the solar greenhouse and prevent the temperature drop from affecting plant growth.

Three sheds built in small arch sheds

Because the vegetable seedlings or weak seedlings growing in the solar greenhouse have poor cold resistance, and when the weather comes with strong wind and snowfall, a small plastic arch can be built on the seedlings or weak seedlings to prevent freezing damage of the seedlings.

Four water in advance

Before the arrival of cold weather, watering the vegetables in the greenhouse can increase the temperature of the soil and air in the greenhouse. Applying humic acid water-soluble fertilizer or microbial fertilizer on the ground can alleviate the decrease in ground temperature. Chong Shi Love Black Gold water-soluble fertilizer can raise the ground temperature by about 3°, and loosen the soil to improve root activity.

Due to the large heat capacity of water, even if the cold current invades and the temperature drops sharply, the water in the solar greenhouse is frozen and freezes and needs to absorb a large amount of heat. Therefore, the temperature in the greenhouse will not drop too much, which can ensure that the greenhouse The vegetables grow normally.

Five use the stove to raise the temperature

When it encounters continuous cloudy days and insufficient sunlight exposure, and the outdoor temperature of the greenhouse drops sharply, several stoves can be set up in the aisles of the solar greenhouse to increase the temperature in the greenhouse by burning coal, but fire prevention measures must be taken to prevent fire .

Six Smoked

Before the arrival of cold weather, light crop straws, firewood, etc. around the solar greenhouse, and use the hot smoke generated to dissipate the cold around the solar greenhouse to increase the temperature around the solar greenhouse, thereby ensuring the temperature in the solar greenhouse Improve to achieve the purpose of resisting the cold current.

seven erect electric heater

In extremely cold weather, when the temperature continues to drop but does not improve, a heater can be temporarily installed on the back wall of the greenhouse. The air outlet of the heater cannot be directly aimed at the plants, because the air outlet has a higher temperature and is relatively dry, which is easy to damage the plants.

In the greenhouse construction design, in order to enhance the thermal insulation of the greenhouse, special attention should be paid to the details of the sealing design or the covering and blocking measures in winter. It is very important to prevent the cold and heat preservation of the greenhouse in winter!