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dc.contributor.authorTening, A.S.
dc.contributor.authorTarawali, G.
dc.contributor.authorOmueti, J.A.I.
dc.date.accessioned2013-05-06T07:00:35Z
dc.date.available2013-05-06T07:00:35Z
dc.date.issued1995
dc.identifier.citationCommunications in Soil Science and Plant Analysis;26(5&6): 673-685
dc.identifier.issn0010-3624
dc.identifier.urihttp://hdl.handle.net/10568/28424
dc.description.abstractA greenhouse experiment was conducted to determine the critical deficiency levels of potassium (K) in the subhumid zone soils for predicting response of a mixture of Andropogon gayanus and Stylosanthes hamata cVerano to K application. Twenty coarse textured soils, having loamy sand to sandy loam textures and with exchangeable K contents ranging from 0.08 to 0.97 cmol/kg, were used. Two rates of K applied were 0 and 80 mg k/kg. Application of K on soils testing less than 0.18 cmol/kg significantly increased the dry matter yields of both Andropogon and stylo tops. Soil K was significantly related to relative yields of Sole Andropogon (r=0.60**), sole stylo (r=0.78***), and Andropogon/stylo mixture (r=0.77***). There was a high correlation between the K concentration in plant tissue and the relative yields of sole Andropogon (r=0.68**), sole stylo (r=0.67**), Andropogon in mixture (r=0.65**), and stylo in mixture (r=0.64**). The graphical model of Gate and Nelson indicated the critical levels of the available form of K in soil to be 0.18, 0.20, and 0.21 cmol/kg for sole Andropogon, sole stylo and Andropogon/stylo mixture, respectively. The critical levels for K in plant tissues were also determined to be 1.30, 2.03, 1.38 and 1.86 percent for sole Andropogon, sole stylo Andropogon in mixture, and stylo in mixture, respectively.
dc.language.isoen
dc.sourceCommunications in Soil Science and Plant Analysis
dc.subjectNIGERIA
dc.subjectSUBHUMID ZONES
dc.subjectPOTASSIUM
dc.subjectPASTURES
dc.subjectFEED LEGUMES
dc.subjectNUTRIENT DEFICIENCY
dc.subjectYIELDS
dc.subjectDRY MATTER CONTENT
dc.titleCritical potassium deficiency levels for a grass legume pasture grown on soils of the subhumid zone of Nigeria
dc.typeJournal Article
cg.subject.ilriFEEDS
cg.subject.ilriFODDER
cg.identifier.statusLimited Access
cg.identifier.doihttps://dx.doi.org/10.1080/00103629509369327
cg.coverage.regionAFRICA
cg.coverage.regionWEST AFRICA
cg.coverage.countryNIGERIA


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