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Effect of Different Upper and Lower Irrigation Limits on Yield,Quality and WUEof Greenhouse White Radish
Pages: 31-36
Year: Issue:  4
Journal: Water Saving Irrigation

Keyword:  greenhousewhite radishirrigation limitsyield distributionqualityWUE;
Abstract: In order to explore suitable irrigation upper and lower limits of greenhouse vegetables,the widespread planting white radishes in North China is chosen and the research on the effect of different irrigation limits on radish yield,quality and WUEYis conducted.The results showed that:the water consumption increases gradually along with the advance of the growth period;when the irrigation lower limit is 60%θFC or 70%θFC and upper limit is 90%θFC,the radish yield can reach the highest value 83 237.7and 83800.9kg/hm2;when the irrigation lower limits is 60%θFC and upper limits is 90%θFC or the irrigation lower limits is 70%θFC and upper limits is 100%θFC,the single weight of radish is lager,the quality,nutritional quality comprehensive index and the market rank is higher,and the crude fiber content is lower;the WUEYincreases significantly with the decrease of the upper irrigation limits.And there is no significant difference of WUEY between different treatments when the lower irrigation limits is 60%θFCor 70%θFC.In conclusion,comprehensively considering the interaction effects of the quality,yield distribution and WUEY,the irrigation lower limits of 60%θFC and upper limits of 90%θFC should be the most appropriate irrigation limits.
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