Full-cover mulch film is more commonly used in production practice. The purpose of doing so is to reduce the humidity in the shed and reduce the degree of disease. The full shed mulch film also has its flaws. Firstly, the gas exchange between air and soil is hindered, which causes oxygen to enter the soil and carbon dioxide is released from the soil. The accumulation of carbon dioxide in the soil and the lack of oxygen affect the respiration of the roots of vegetables, and no supplement of carbon dioxide produced in the soil is produced in the air, resulting in vegetables. Normal growth is blocked. Second, the full shed film covers the soil to increase the harmful gases, it is easy to hurt the roots. As the soil oxygen content decreases, anaerobic respiration of soil microorganisms or denitrification of nitrate nitrogen fertilizers produces reducing gases, such as carbon monoxide and nitrogen oxides, which can seriously affect the normal growth of vegetable roots. Therefore, if you want to cover all the mulching film in the greenhouse, you should spread stalks, rice husks, etc. in the planting belt. This will not only prevent the water in the soil from evaporating, but also allow the applicator to absorb the moisture in the air. These applicators will also release some heat and carbon dioxide during the decay process, increasing the temperature and photosynthesis of the greenhouse. Bright Color Red Bell Pepper,Ad Sweet Pepper Green,Air-Dried Green Bell Pepper,Dehydrated Sweet Pepper Green Xinghua Jiahe Foods Co., Ltd. , https://www.jiahefoods.com