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针对宁夏干旱区槽式温室内环境日变化进行初步研究,通过国家农业信息化工程技术研究中心提供温室娃娃对宁夏干旱区槽式日光温室结构及极端低温条件下内部光照强度、空气温度、空气相对湿度、露点温度、土壤温度等环境参数进行测定。结果表明:对内环境日变化曲线比较可知,此种温室结构均介于日光温室与塑料大棚之间,但其性能则类似日光温室,且温度方面性能低于日光温室,尤其是最低温时仅为日光温室的30%;比较3种跨度槽式温室内环境可知,12m优于10m,10m优于8m。在最低温度等极限条件(覆盖保温被条件下,短时间段内10℃>空气温度>0℃,8℃>土壤温度>3℃)能够满足韭菜等喜凉叶菜周年生产的需要,同时可进行果菜类蔬菜早春或秋延后栽培,填补日光温室和常规拱棚栽培之间的空档,具有较好的经济效益。在宁夏中部干旱带、地下水位低于3m的地区较适宜推广。
Aiming at the preliminary study on the diurnal variation of the internal environment of the trough greenhouse in the arid area of Ningxia, the greenhouses of the greenhouse were provided by the National Center for Agricultural Information Engineering and Technology Research Center. The effects of internal light intensity, air temperature and air on the trough solar greenhouse structure and the extremely low temperature Humidity, dew point temperature, soil temperature and other environmental parameters were measured. The results showed that: Compared with the diurnal variation curve of the inner environment, the greenhouse structure is between the solar greenhouse and the plastic greenhouse, but its performance is similar to the solar greenhouse, and the temperature performance is lower than the solar greenhouse, especially at the lowest temperature 30% of sunlight greenhouse; comparison of three kinds of span trough greenhouse environment shows that 12m better than 10m, 10m better than 8m. The minimum temperature and other limiting conditions (covering the insulation conditions, a short period of time 10 ℃> air temperature> 0 ℃, 8 ℃> soil temperature> 3 ℃) can meet the annual production needs of leeks and other cool leafy vegetables at the same time Fruit and vegetable vegetables in early spring or autumn post-cultivation, to fill the gap between greenhouse and conventional arch cultivation, has good economic benefits. In the central Ningxia arid zone, where the groundwater table is below 3m, it is more suitable for popularization.