水土保持学报2013，Vol.27Issue(4)：283-287,5.
交替灌溉下不同水氮供给对番茄产量和品质的影响
Effect of Water and Nitrogen Supply on Tomato Yield and Quality Under Alternative Irrigation
摘要
Abstract
The objective of this study was to explore the optimum supply mode of water and nitrogen for vegetable under controlled root-divided alternative irrigation(CRAI),pot experiment of tomato was conducted and conventional sufficient irrigation(CI) was took as control,and the effect of water and nitrogen supply under CRAI on tomato yield,water use efficiency and quality were studied.Results showed that,compared with CI,tomato yield under continued high water,low water at flowering and fruit set stage,low water at full fruit stage and continued low water decreased by 5.08％,13.31％,21.28％ and 28.22％,and irrigation water use efficiency(IWUE) increased by 11.90％,7.36％,10.30％ and 6.74％ respectively.The treatment of middle nitrogen under CRAI could obtain higher yield and IWUE.Compared with CI,continued high water,low water at flowering and fruit set stage,low water at full fruit stage and continued low water under CRAI could increase tomato soluble solids,soluble sugar,lycopene,nitrate and vitamin C,while organic acid content decreased.The treatment of high nitrogen under CRAI could obtain higher soluble solids,organic acid and nitrate,while the treatment of middle nitrogen under CRAI could obtain higher soluble sugar,lycopene and vitamin C.Higher yield,quality and IWUE could be obtained by low water at flowering and fruit set stage and middle nitrogen under CRAI simultaneously.关键词
交替灌溉/水氮供给/水分利用效率/番茄产量和品质Key words
alternative irrigation/ water and nitrogen supply/ water use efficiency/ yield and quality of tomatoes分类
农业科技引用本文复制引用
刘小刚,张彦,张富仓,蔡焕杰,李志军,杨启良,杨具瑞..交替灌溉下不同水氮供给对番茄产量和品质的影响[J].水土保持学报,2013,27(4):283-287,5.基金项目
国家自然科学基金项目(51109102,51009073) （51109102,51009073）
国家"十二五""863"项目(2011AA100504) （2011AA100504）
云南省应用基础研究资助项目(2010ZC043) （2010ZC043）
云南省教育厅重点项目(2011Z035) （2011Z035）
水利部公益项目(201101042) （201101042）
