Partial root-zone drying irrigation and water utilization efficiency by the potato crop in semi-arid regions in China

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cg.contributor.affiliationInternational Potato Centeren
cg.contributor.crpWater, Land and Ecosystems
cg.coverage.countryChina
cg.coverage.iso3166-alpha2CN
cg.coverage.regionAsia
cg.coverage.regionEastern Asia
cg.creator.identifierMichael Victor: 0000-0001-5392-8425
cg.identifier.doihttps://doi.org/10.1016/j.scienta.2011.11.034en
cg.identifier.wlethemeRegenerating Degraded Agricultural Ecosystems
cg.issn0304-4238en
cg.journalScientia Horticulturaeen
cg.subject.wleWATER PRODUCTIVITYen
cg.subject.wleIRRIGATIONen
cg.subject.wleAGRICULTURAL PRODUCTIONen
cg.volume134en
dc.contributor.authorKaiyun X.en
dc.contributor.authorXiao-Xue W.en
dc.contributor.authorRuofang Z.en
dc.contributor.authorXiufeng G.en
dc.contributor.authorShibiao Z.en
dc.contributor.authorVictor, Michaelen
dc.contributor.authorCarla G.en
dc.contributor.authorAdolfo P.en
dc.contributor.authorRoberto Q.en
dc.date.accessioned2013-12-02T11:59:15Zen
dc.date.accessioned2014-02-02T16:39:50Zen
dc.date.available2013-12-02T11:59:15Zen
dc.date.available2014-02-02T16:39:50Zen
dc.identifier.urihttps://hdl.handle.net/10568/34635
dc.titlePartial root-zone drying irrigation and water utilization efficiency by the potato crop in semi-arid regions in Chinaen
dcterms.abstractTwo field experiments were conducted in two semi-arid areas in northern China to test the response of three potato varieties to supplemental irrigation. Conventional furrow irrigation was compared to the partial root-zone drying (PRD) irrigation system at different watering levels, with and without plastic mulching. Reducing the supplementary water to one half, under both soil-climate conditions tested, did not affect fresh tuber yield; whereas water use efficiency (WUE) was equally incremented by all the reduced water treatments. When this reduction in the amount of supplementary water was managed through the PRD system, the distribution of moisture in the soil seemed to be improved and the potential evaporation was decreased due to the reduced evaporative surface exposed by PRD. The results showed that application of irrigation water per unit area can be reduced relative to common practice in Inner Mongolia and Gansu, maintaining the tuber yields currently obtained by local farmers. A further reduction in the amount of supplemental water, without a substantial decrease in yield, might be feasible with the PRD technique but this may require a more sophisticated irrigation management; and further research to estimate the cost-benefit ratio of such sophistication is needed. Results also showed that under low precipitation and low water retention capacity, the use of plastic mulching and a potato variety selected for drought-prone environments can make the difference for maintaining a high yield while reducing the wasteful use of the water resources.en
dcterms.accessRightsLimited Access
dcterms.bibliographicCitationKaiyun Xie, Xiao-Xue Wang, Ruofang Zhang, Xiufeng Gong, Shibiao Zhang, Victor Mares, Carla Gavilin, Adolfo Posadas, and Roberto Quiroz . 2012. Partial root-zone drying irrigation and water utilization efficiency by the potato crop in semi-arid regions in China. Scientia Horticulturae, 134 (2012):20-25.en
dcterms.extentp. 20-25en
dcterms.issued2012-02
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherElsevieren
dcterms.typeJournal Article

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