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dc.contributorMartius, Christopheren_US
dc.contributorGupta, Rajen_US
dc.contributorDevkota, K.Pen_US
dc.contributorMcDonald, Andrewen_US
dc.contributorLamers, Johnen_US
dc.creatorDevkota Wasti, Minaen_US
dc.identifier.citationMina Devkota Wasti, Christopher Martius, Raj Gupta, K. P Devkota, Andrew McDonald, John Lamers. (1/4/2015). Managing soil salinity with permanent bed planting in irrigated production systems in Central Asia. Agriculture, Ecosystems and Environment, 202, pp. 90-97.en_US
dc.description.abstractLand degradation due to water logging and its influence on secondary soil salinization processes pose a majorthreattothesustainabilityofirrigatedagricultureinthesemi-aridproductionecologiesofCentral Asia.Inrainfedconditions,conservationagriculture(CA)practices,i.e.,reducedtillage,residueretention and crop rotation, have proven to have substantial scope for arresting or reversing soil degradation. Previous research findings suggest that CA can be beneficiallyapplied to irrigated croplands as well, but influences on salinization processes are insufficiently documented. This study investigates the effect of CApracticesonsoilsalinitydynamicsinirrigatedproductionsystemsintheKhorezmregion,Uzbekistan, Central Asia. The study was conducted under a cotton-wheat-maize rotation system, typical for the region, from 2007 to 2009 with two tillage methods (‘CA’–permanent raised beds (PB); conventional tillage(CT))combinedwithtworesiduelevels(residueharvested(RH);residueretained(RR)).Compared to pre-experiment levels, salinity in the top 30cm soil increased significantly during cotton (May– October), while a negligible change occurred during wheat (October–June) and maize (July–September) season.Inabsenceofcropresidues,soilsalinityontopofthebedsincreasedcomparedtoCTwithoutcrop residueretention.Whenretainingcropresidues,thesoilsalinityunderPBwasreducedby32%inthetop 10cm and by 22% over the top 90cm soil profile compared to CT without crop residue retention. Thus, PB+RR seemsapromisingoptiontoslowdownon-goingsoilsalinization insalt-affectedagro-ecologies such as those in the irrigated arid lands of Central Asia.en_US
dc.publisherElsevier Massonen_US
dc.sourceAgriculture, Ecosystems and Environment;202,(2015) Pagination 90-97en_US
dc.subjectresidue retentionen_US
dc.titleManaging soil salinity with permanent bed planting in irrigated production systems in Central Asiaen_US
dc.typeJournal Articleen_US
cg.creator.idDevkota Wasti, Mina: 0000-0002-2348-4816en_US
cg.subject.agrovocconservation agricultureen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerInternational Maize and Wheat Improvement Center - CIMMYTen_US
cg.contributor.centerUniversity of Bonn, Center for Development Research - Uni-Bonn - ZEFen_US
cg.contributor.centerThe Borlaug Institute for South Asia - BISAen_US
cg.contributor.centerCenter for International Forestry Research - CIFORen_US
cg.contributor.centerInternational Rice Research Institute - IRRIen_US
cg.contributor.funderCGIAR System Organization - CGIARen_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionCentral Asiaen_US
cg.isijournalISI Journalen_US
dc.identifier.statusTimeless limited accessen_US
cg.journalAgriculture, Ecosystems and Environmenten_US

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