基于物联网的阳台微型温室作物生长环境因子探究

Study on crop growth environment factors in mini-greenhouse in balcony based on internet of things

为精确调控温室作物生长环境,以樱桃番茄金珠为研究对象,采用新一代物联网系统,对阳台微型温室环境因子进行监测,研究作物在不同区域环境因子的日变化与差异。结果表明:(1)温室外光照强度高于温室内;温室内不同位置光照强度差异较明显,上部区域强于下部,由南到北光照强度呈递减趋势。(2)温室内空气温度高于温室外,温室内不同区域温度变化为:幼苗期内、外侧组空气温度相接近,开花期与结果期内侧组空气温度高于外侧组,整个生长期外侧组土壤温度均高于内侧组。(3)温室外空气湿度显著大于温室内;幼苗期内侧组空气湿度大于外侧组,进入开花期后,外侧组空气湿度比内侧组高4%~6%,结果期空气湿度较高且日变化较小。(4)温室内外侧组二氧化碳浓度高于内侧组。

In order to accurately control the growth environment of greenhouse crops,cherry tomato Jinzhu was used as the research object to monitor the environmental factors of mini-greenhouse on the balcony by using a next generation internet of things system,and diurnal variation of crops in various environmental regions was studied.The results showed as follows:(1)Light intensity outside the greenhouse was higher than that in the greenhouse.And there were significant differences existed in light intensity in diverse areas of greenhouse.The light intensity in upper area was stronger than that in lower area.In addition,the light intensity decreased from south to north.(2)Air temperature in the greenhouse was higher than that outside the greenhouse.In the greenhouse,air temperature in the whole greenhouse was similar at seedling stage,air temperature in inner group was higher than that of outer group during the flowering stage and fruiting stage.Additionally,soil temperature in outer group was higher than that in inner group of greenhouse throughout the growth period.(3)Air humidity outside the greenhouse was significantly higher than that in the greenhouse.Also,air humidity in inner group was higher than that in outer group of greenhouse at seedling stage.After entering flowering stage,air humidity in outer group was 4%-6% higher than that in inner group of greenhouse.During the fruiting stage,air humidity was apparently higher.Furthermore,diurnal variation of humidity had small fluctuation.(4)Carbon dioxide concentration in outer group was higher than that in inner group of greenhouse.