Spescial Issues

Effect Factors and Control Strategies for Improving Enriched CO2 Utilization Efficiency in Protected Agriculture

  • TONG Yuxin ,
  • CHENG Ruifeng ,
  • WANG Jun ,
  • XIN Min ,
  • YANG Qichang
  • Key Laboratory for Energy Saving and Waste Disposal of Protected Agriculture, Ministry of Agriculture; Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China

Received date: 2014-01-10

  Revised date: 2014-01-20

  Online published: 2014-04-19


To improve the utilization efficiency and economic benefits of enriched CO2 and reduce the CO2 leaked outside and the operation cost of protected agriculture, the possible effect factors on the enriched CO2 utilization efficiency are analyzed based on calculations in this paper. The effective methods and technologies to improve the enriched CO2 utilization efficiency are discussed. The result shows that the main effect factors on the enriched CO2 utilization efficiency are the air exchange rate, CO2 concentration difference between inside and outside facilities and the plant photosynthetic capacity. To maximize the enriched CO2 utilization efficiency, the optimum CO2 enriched method, CO2 enriched concentration and enriched time should be decided by considering plant species, growth stage, cultivation conditions, other environmental factors, etc., when the CO2 enrichment is conducted.

Cite this article

TONG Yuxin , CHENG Ruifeng , WANG Jun , XIN Min , YANG Qichang . Effect Factors and Control Strategies for Improving Enriched CO2 Utilization Efficiency in Protected Agriculture[J]. Science & Technology Review, 2014 , 32(10) : 47 -52 . DOI: 10.3981/j.issn.1000-7857.2014.10.008


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