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Experimental Study on Regulating and Controlling of the Temperature and Humidity to Greenhouse Vegetables Growth

LUO Peng;ZHAO Yin-ying;  
Based on experimental investigation of the temperature and humidity of two kinds of vegetables in greenhouse, this study analyzed the effect of their variation on the growth of vegetables. The results show that the vegetables in greenhouse need aeration-cooling in time. Greenhouse should keep warm in winter to ensure the vegetables in greenhouse grow normally. The relative humidity in greenhouse keeps around 50% in the daytime and 80%~90% at night could meet the demand of vegetables and not easy to induce disease. Fresh air should be provided in time when relative humidity in greenhouse is more than 90% in the morning. When humidity in greenhouse decreases to 30%, water should be sprinkled in time to increase the humidity in greenhouse.
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