Greenhouse ventilation management: Spring greenhouse ventilation management. Camber different sizes leaked mouth. The size of the air spring with a certain data can not be completely defined, because of the different structure of the greenhouse, the time and speed of cooling is different. Camber larger greenhouses, since shed suitable surface camber, hot air is easily discharged along the upper part of the price of the construction of rural shed shed films, even leaked a small mouth, but also to achieve better results leaked. The formation of toxic greenhouse gases and precautions: plastic greenhouse cultivation of vegetables, often back to improper fertilization methods, ignoring the ventilation shed excess toxic gases endanger vegetables, but the disease is often misdiagnosed as, led up less than the final result. Due to excessive application of nitrogen urea, sulfuric acid and other fast-acting fertilizer 锓 rural shed cost, or improper fertilization rural shed, because the decomposition of ammonia if administered without the decomposition of organic fertilizer in rural shed manufacturers, shed under high temperature conditions, it will damage vegetables so water-soaked spots appear margin tissue, whole leaf dead serious. Old disease is often misdiagnosed as cream or other illnesses, for ammonia-sensitive vegetables, cucumber, tomatoes, zucchini, etc. Rural Greenhouse construction price | St. Xin Agriculture (certified) | rural shed by Anyang City of St. Xin Agricultural Technology Services, LLC. Anyang City of St. Xin Agricultural Technology Services, LLC (www.aysxny.com) in Henan, the other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In St. Xin agricultural leadership with the staff warmly welcome all inquiries negotiations to create the holy Xin agriculture a better future.