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dc.contributorSingh, Murarien_US
dc.contributorMasri, Samiren_US
dc.contributorIbrikci, Hayriyeen_US
dc.creatorRyan, Johnen_US
dc.date2012-10-23en_US
dc.date.accessioned2020-12-02T22:13:37Z
dc.date.available2020-12-02T22:13:37Z
dc.identifierhttps://mel.cgiar.org/dspace/limiteden_US
dc.identifier.citationJohn Ryan, Murari Singh, Samir Masri, Hayriye Ibrikci. (23/10/2012). Spatial Variation In Soil Organic Matter, Available Phosphorus, And Potassium Under Semi-Arid Conditions: Research Station Management Implications. Communications in Soil Science and Plant Analysis, 43 (21), pp. 2820-2833.en_US
dc.identifier.urihttps://hdl.handle.net/20.500.11766/12155
dc.description.abstractNatural ecosystems are characterized by variability in space and, to a lesser extent, in time. Soil types and properties vary on landscape and field scales. Such variability is either inherent or human-induced and influences crop management. Variability at the plot level impinges on field experimentation. In this study at the main station, Tel Hadya, of the International Center for Agricultural Research in the Dry Areas (ICARDA), we intensively sampled four large field plots and analyzed the samples for soil organic matter (SOM), available Olsen phosphorus (P), and extractable potassium (K). Variability parameters were established for each property, as well as semivariograms. Contour maps for each plot were drawn by kriging. Despite the history of uniform management in each plot, large residual spatial variability was evident for each parameter. Although such variability is generally disregarded by agronomists and crop scientists and is generally believed to be eliminated by an alternate year of uniform cropping (i.e., homogenization), the residual persistent variability in these parameters cause variation in crop growth and need to be considered in designing experimental treatments, especially with regard to plot size and orientation. Although P and K variability can be masked by uniform fertilizer application, the effects of SOM persist for several years and thus can influence nutrient availability and soil moisture under such dryland conditions. Systematic soil sampling can help in reducing variability at trial sites, but background variability cannot be eliminated completely in natural bodies such as soils.en_US
dc.languageenen_US
dc.publisherTaylor and Francisen_US
dc.rightsCopyrighted; all rights reserveden_US
dc.sourceCommunications in Soil Science and Plant Analysis;43,(2012) Pagination 2820,2833en_US
dc.subjectdryland croppingen_US
dc.subjectcrop nutrientsen_US
dc.titleSpatial Variation In Soil Organic Matter, Available Phosphorus, And Potassium Under Semi-Arid Conditions: Research Station Management Implicationsen_US
dc.typeJournal Articleen_US
cg.creator.idSingh, Murari: 0000-0001-5450-0949en_US
cg.creator.ID-typeORCIDen_US
cg.subject.agrovocfield experimentationen_US
cg.subject.agrovocsoil samplingen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerCukurova University, Faculty of Agriculture - CU - FoAen_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.date.embargo-end-dateTimelessen_US
cg.coverage.regionGlobalen_US
cg.contactj.ryan@cgiar.orgen_US
cg.identifier.doihttps://dx.doi.org/10.1080/00103624.2012.716126en_US
dc.identifier.statusTimeless limited accessen_US
mel.impact-factor0.767en_US


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