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dc.contributorRashid, Abdulen_US
dc.contributorRyan, Johnen_US
dc.contributorBhatti, A. U.en_US
dc.creatorRafique, E.en_US
dc.identifier.citationE. Rafique, Abdul Rashid, John Ryan, A. U. Bhatti. (20/8/2006). Zinc Deficiency in Rainfed Wheat in Pakistan: Magnitude, Spatial Variability, Management, and Plant Analysis Diagnostic Norms. Communications in Soil Science and Plant Analysis, 37 (1-2), pp. 181-197.en_US
dc.description.abstractZinc (Zn) deficiency is a widespread micronutrient disorder in crops grown in calcareous soils; therefore, we conducted a nutrient indexing of farmer-grown rainfed wheat ( Triticum aestivum , cv. Pak-81) in 1.82 Mha Potohar plateau of Pakistan by sampling up to 30 cm tall whole shoots and associated soils. The crop was Zn deficient in more than 80% of the sampled fields, and a good agreement existed between plant Zn concentration and surface soil AB-DTPA Zn content ( r =0.52; p <= 0.01). Contour maps of the sampled areas, prepared by geostatistical analysis techniques and computer graphics, delineated areas of Zn deficiency and, thus, would help focus future research and development. In two field experiments on rainfed wheat grown in alkaline Zn-deficient Typic Haplustalfs (AB-DTPA Zn, 0.49-0.52 mg kg(-1)), soil-applied Zn increased grain yield up to 12% over control. Fertilizer requirement for near-maximum wheat grain yield was 2.0 kg Zn ha(-1) , with a VCR of 4:1. Zinc content in mature grain was a good indicator of soil Zn availability status, and plant tissue critical Zn concentration ranges appear to be 16-20 mg kg(-1) in young whole shoots, 12-16 mg kg(-1) in flag leaves, and 20-24 mg Zn kg(-1) in mature grains.en_US
dc.publisherTaylor and Francisen_US
dc.sourceCommunications in Soil Science and Plant Analysis;37,(2006) Pagination 181-197en_US
dc.subjectspatial variabilityen_US
dc.subjectrainfed wheaten_US
dc.subjectdiagnostic normsen_US
dc.subjectzinc use efficiencyen_US
dc.subjectsoil seriesen_US
dc.titleZinc Deficiency in Rainfed Wheat in Pakistan: Magnitude, Spatial Variability, Management, and Plant Analysis Diagnostic Normsen_US
dc.typeJournal Articleen_US
cg.subject.agrovocalkaline soilsen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerPakistan Agricultural Research Council, National Agricultural Research Center, Land Resources Research Institute - PARC - NARC - LRRIen_US
cg.contributor.centerThe University of Agriculture-Peshawar - AUP Peshawaren_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionSouthern Asiaen_US
cg.isijournalISI Journalen_US
dc.identifier.statusTimeless limited accessen_US
cg.journalCommunications in Soil Science and Plant Analysisen_US

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