%0 Journal Article
%T Water-saving and high-yield mechanism of tomato under different irrigation methods<br>不同灌水方式下番茄节水高产机理研究
%A WANG Yan
%A CAI Huan-Jie
%A CHEN Xin-Ming
%A ZHENG Jian
%A JI Hong
%A <br>王 燕
%A 蔡焕杰
%A 陈新明
%A 郑 健
%A 冀 宏
%J 中国生态农业学报
%D 2009
%I 
%X The objective of this article was to study the effect of different irrigation methods (non-pressure subsurface irrigation, drip irrigation and furrow irrigation) on photosynthetic physiology, yield, water use efficiency and root hydraulic conductance of tomato. The results show higher root hydraulic conductance of tomato under non-pressure subsurface irrigation (characterized as less water for many irrigation times) than under drip and furrow irrigations. Non-pressure subsurface irrigation adjusts root-zone soil moisture to a suitable range for crop growth which improves crop water absorption capacity. Compared to furrow irrigation, non-pressure subsurface and drip irrigations respectively increase tomato chlorophyll content by 16.2% and 12.8%, reduces stomatal conductance and transpiration dehydration, maintain relatively stable photosynthetic rate and increase WUE by 51.3% and 17.2%. A comprehensive evluation of investment and output indicates that non-pressure subsurface irrigation has the highest benefits, followed by drip irrigation while furrow irrigation is the lowest.
%K Tomato
%K Irrigation method
%K Non-pressure subsurface irrigation
%K Photosynthetic physiology
%K Root hydraulic conductance
%K Water use efficiency<br>番茄
%K 灌水方式
%K 无压灌
%K 光合生理根系吸水力
%K 水分利用效率
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=AB3ABF502E2E1FF39F0E3B80164C9031&aid=091CA8CBBC34B925D01B99C4E4F00304&yid=DE12191FBD62783C&vid=BCA2697F357F2001&iid=0B39A22176CE99FB&sid=4D7D059FFBF006B9&eid=FDC7AF55F77D8CD4&journal_id=1671-3990&journal_name=中国生态农业学报&referenced_num=2&reference_num=21