Impact of Closed Greenhouse on Yield and Water Productivity of Four Vegetable Crop Species  

作　　者：qiang fan min zhang yaai dang xuzhang xue 

机构地区：[1]college of water resources and architectural engineering,northwest a&f university,Yangling 712100,China [2]college of science,northwest a&f university,Yangling 712100,China [3]national engineering research center for information technology in agriculture,Beijing 100097,China

出　　处：《Agricultural Science & Technology》2017年第12期2606-2611,2616,共7页农业科学与技术（英文版）

基　　金：Supported by Research Fund for the Doctoral Program of Northwest A&F University(2452015291);The special funds of the National Key Laboratory(A314021402-1605);Natural Science Foundation of Shaanxi Province(2015JQ4107)

摘　　要：Aiming to provide theoretical foundations for crop growth and water control optimization in closed greenhouses, this paper compares the closed greenhouse and the conventional greenhouse in terms of crop growth, yield and irrigation water productivity. The results showed that environmental factors such as temperature, humidity and CO_2 in a closed greenhouse, were far higher than those in a conventional greenhouse. Compared with tomato and cowpea, spinach and alfalfa adapted well to high temperature and high humidity, and their water requirement and water use efficiency in the closed greenhouse were higher than those in the conventional greenhouse.Aiming to provide theoretical foundations for crop growth and water control optimization in closed greenhouses, this pa- per compares the closed greenhouse and the conventional greenhouse in terms of crop growth, yield and irrigation water pro- ductivity. The results showed that environmental factors such as temperature, humidity and C02 in a closed greenhouse, were far higher than those in a conventional greenhouse. Compared with tomato and cowpea, spinach and alfalfa adapted welt to high temperature and high humidity, and their water requirement and water use efficiency in the closed greenhouse were higher than those in the conventional qreenhouse.

关 键 词：Closed greenhouse Water use efficiency Crop growth 

分 类 号：S626[农业科学—园艺学]