how to keep warm in the greenhouse in the winter

For greenhouse planting, it is to control the local environment, through adjusting the temperature and humidity in the shed, so that it meets the planting requirements of crops.  But in the cold winter, due to climate reasons, the temperature in the shed will become lower, to not let the shed crop yield, you need to solve the problem of greenhouse insulation.  

The following is a few greenhouse winter heat preservation method, can effectively protect the crop growth in the cold weather shed, the following together to understand it.  

1, to prevent greenhouse leakage:  

Frequently check whether the solar greenhouse film is intact.  Check the plastic film carefully, and repair the damaged air leakage in time.  The plastic film on the ground should be pressed with soil, which can effectively organize cold air to invade the greenhouse.  

2, replace the straw curtain with a thermal insulation quilt:  
 
Greenhouse insulation quilt not only has a better insulation effect than the transmission of grass curtain, but also has a smooth and soft surface, which can prevent the scraping of the film, leading to greenhouse leakage and cooling.  When the weather is sunny, pull up the heat preservation is greenhouse temperature, when the weather is bad, the heat preservation will be put down heat preservation, can reduce the loss of heat in the solar greenhouse, avoid the impact of temperature reduction on plant grow

3, the shed to build a small arch shed:  
 
Due to the endogenous growth of vegetable seedlings or weak seedlings in solar greenhouse, cold resistance is poor, when the weather comes, can be in the seedlings or weak seedlings vegetable beds, and then build a plastic small arch shed

4, advance irrigation:  
 
Before the arrival of cold weather, irrigation of vegetables in solar greenhouse can raise the temperature of soil and air in greenhouse.  Because the heat capacity of water is very large, even if the cold current attacks, the temperature plummets, the water in the solar greenhouse is frozen and frozen, and it needs to absorb a lot of heat, so the temperature in the greenhouse will not drop too much, which can ensure the normal growth of vegetables in the greenhouse.  

5, the use of furnace temperature:  
 
Encounter overcast days, sunlight exposure is seriously insufficient, greenhouse outdoor temperature drops sharply, can be set up in the corridor of the solar greenhouse several furnaces, through the burning of coal to improve the temperature of the greenhouse, but to do a good job of fire prevention measures.

6, smoked  
 
Before the arrival of cold weather, crops straw, firewood, etc. are lit around the solar greenhouse greenhouse, and the hot smoke generated by it can disperse the cold air around the solar greenhouse greenhouse, so as to increase the temperature around the solar greenhouse greenhouse, so as to ensure that the temperature in the solar greenhouse increases, and achieve the purpose of resisting cold current.  

7, set up electric heater:  
 
When the weather continues to drop and the temperature does not improve, a heating fan can be temporarily set up on the back wall of the greenhouse.  The sealing of the heater can not be directly aimed at the plant, because the tuyere temperature is higher, relatively dry, easy to harm the plant.