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针对日光温室冬季生产环境密闭、缺少气流扰动的现状,开展了扰流风机日光温室应用效果研究。在测试扰流风机所形成的气流特性的基础上,进一步对连续扰流区域、间歇扰流区域与非扰流区域的温湿度环境以及番茄生长指标进行对比分析。结果表明,扰流风机能够对温室内空气产生有效扰动,风机下1.5米处0.15~0.50米/秒风速的覆盖范围可达73%;在正午高温时段,连续扰流能够使植株冠层空气温度降低3~4℃、相对湿度增加8%左右;在连续扰流作用下,番茄叶片净光合速率提高31%、气孔导度提高57%,有效促
Aiming at the situation that the winter production environment in the solar greenhouse is closed and the airflow disturbance is absent, the application effect of the disturbed flow fan solar greenhouse has been studied. On the basis of testing the airflow characteristics of spoiler fan, the temperature and humidity environment and the growth index of tomato in continuous spoiler area, intermittent spoiler area and non-spoiler area were further analyzed. The results show that the spoiler fan can effectively disturb the air in the greenhouse, and the wind speed of 0.15-0.50 m / s at 1.5m can cover 73% of the wind speed. At noon high temperature, continuous spoiler can make the canopy air temperature Reduce 3 ~ 4 ℃, relative humidity increased by about 8%; Under the continuous spoiler, tomato net photosynthetic rate increased by 31%, stomatal conductance increased by 57%, effectively promote