高温期不同覆盖材料对苗床温度和湿度的影响

Effects of Different Covering Materials on Seedbed Temperature and Humidity During High Temperature Period

本文采用遮阳网、棚膜、黑白双色膜、黑色地布和隔热膜等不同覆盖材料对大棚内苗床进行降温保湿试验。结果表明,上述材料均能降低苗床温度,提升苗床湿度,其中隔热膜的降温保湿效果优于遮阳网、棚膜、黑白双色膜和黑色地布,黑白双色膜的降温保湿效果优于遮阳网、棚膜和黑色地布。

In this paper,different covering materials such as sunshade net,shed film,black and white two-color film,black ground cloth and thermal insulation film were used to conduct cooling and moisturizing experiments on the seedbed in the greenhouse.The results showed that the above materials could reduce the temperature of the seedbed and increase the humidity of the seedbed.Among them,the cooling and moisturizing effect of thermal insulation film was better than that of sunshade net,shed film,black and white two-color film,and black ground cloth;the cooling and moisturizing effect of black and white two-color film was better than that of sunshade net,shed film and black ground cloth.