Optimization of rhizosphere cooling airflow for microclimate regulation and its effects on lettuce growth in plant factory
文献类型： 外文期刊
作者： Li Kun 1 ; Fang Hui 2 ; Zou Zhi-rong 1 ; Cheng Rui-feng 2 ;
作者机构： 1.Northwest A&F Univ, Key Lab Protected Hort Engn Northwest, Minist Agr & Rural Affairs China, Coll Hort, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Energy Conservat & Waste Management Agr S, Minist Agr & Rural Affairs China, Beijing 100081, Peoples R China
关键词： air movement; environmental control; microclimate; water cooling; root and shoot growth
期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：2.848； 五年影响因子：2.979 ）
ISSN： 2095-3119
年卷期： 2021 年 20 卷 10 期
页码：
收录情况： SCI
摘要： In plant factories, the plant microclimate is affected by the control system, plant physiological activities and aerodynamic characteristics of leaves, which often leads to poor ventilation uniformity, suboptimal environmental conditions and inefficient air conditioning. In this study, interlayer cool airflow (ILCA) was used to introduce room air into plants' internal canopy through vent holes in cultivation boards and air layer between cultivation boards and nutrient solution surface (interlayer). By using optimal operating parameters at a room temperature of 28 degrees C, the ILCA system achieved similar cooling effects in the absence of a conventional air conditioning system and achieved an energy saving of 50.8% while bringing about positive microclimate change in the interlayer and nutrient solution. This resulted in significantly reduced root growth by 41.7% without a negative influence on lettuce crop yield. Future development in this precise microclimate control method is predicted to replace the conventional cooling (air conditioning) systems for crop production in plant factories.
- 相关文献
作者其他论文 更多>>
-
Selenium distribution and nitrate metabolism in hydroponic lettuce (Lactuca sativa L.): Effects of selenium forms and light spectra
作者：Bian Zhong-hua;Lei Bo;Cheng Rui-feng;Li Tao;Yang Qi-chang;Bian Zhong-hua;Wang Yu
关键词：selenium; light spectra; nitrates; nitrogen metabolism enzymes; LEDs; Lactuca sativa L.
-
Genetic mapping and genomic selection for maize stalk strength
作者：Liu Xiaogang;Hu Xiaojiao;Li Kun;Liu Zhifang;Wu Yujin;Wang Hongwu;Huang Changling
关键词：Stalk strength; Rind penetrometer resistance; Quantitative trait loci; Genomic selection; Maize
-
The effect of artificial solar spectrum on growth of cucumber and lettuce under controlled environment
作者：Zou Jie;Zhou Cheng-bo;Cheng Rui-feng;Yang Qi-chang;Li Tao;Xu Hong
关键词：cucumber; leaf photosynthesis; lettuce; plant morphology; Sunlike LEDs
-
Direct utilization of solar linear Fresnel reflector on multi-effect eccentric horizontal tubular still with falling film
作者：Wu Gang;Yang Qichang;Zhang Yi;Fang Hui;Wu Gang;Yang Qichang;Zhang Yi;Fang Hui;Zheng Hongfei;Jin Rihui
关键词：Falling water film; Heat and mass transfer; Multi-eccentric; Horizontal tubular still; Solar distillation
-
The positive function of selenium supplementation on reducing nitrate accumulation in hydroponic lettuce (Lactuca sativa L.)
作者：Lei Bo;Yang Qi-chang;Wang Jun;Cheng Rui-feng;Li Kun;Liu Wen-ke;Zhang Yi;Fang Hui;Tong Yun-xin;Bian Zhong-hua
关键词：selenium; NO3-; nitrogen metabolism enzyme; SIET; photosynthetic performance; lettuce
-
太阳能与热泵技术在温室供暖中的研究进展
作者：Lu Wei;卢威;孙维拓;Sun Weituo;Zhang Yi;张义;Fang Hui;方慧;Yang Qichang;杨其长;Zhou Bo;周波
关键词：温室;供暖设备;太阳能;热泵技术;资源开发
-
微量元素对蔬菜废弃物厌氧发酵影响研究
作者：LI Kun;李坤;WANG Yuan-Yuan
关键词：蔬菜废弃物;厌氧发酵工艺;产气性能;微量元素
