Critical potassium deficiency levels for a grass legume pasture grown on soils of the subhumid zone of Nigeria
| cg.coverage.country | Nigeria | |
| cg.coverage.iso3166-alpha2 | NG | |
| cg.coverage.region | Africa | |
| cg.coverage.region | Western Africa | |
| cg.identifier.doi | https://doi.org/10.1080/00103629509369327 | en |
| cg.issn | 0010-3624 | en |
| cg.issue | 5-6 | en |
| cg.journal | Communications in Soil Science and Plant Analysis | en |
| cg.subject.ilri | FEEDS | en |
| cg.subject.ilri | FODDER | en |
| cg.volume | 26 | en |
| dc.contributor.author | Tening, A.S. | en |
| dc.contributor.author | Tarawali, G. | en |
| dc.contributor.author | Omueti, J.A.I. | en |
| dc.date.accessioned | 2013-05-06T07:00:35Z | en |
| dc.date.available | 2013-05-06T07:00:35Z | en |
| dc.identifier.uri | https://hdl.handle.net/10568/28424 | |
| dc.title | Critical potassium deficiency levels for a grass legume pasture grown on soils of the subhumid zone of Nigeria | en |
| dcterms.abstract | A 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. | en |
| dcterms.accessRights | Limited Access | |
| dcterms.available | 2008-11-11 | |
| dcterms.bibliographicCitation | Communications in Soil Science and Plant Analysis;26(5&6): 673-685 | en |
| dcterms.extent | p. 673-685 | en |
| dcterms.issued | 1995-03 | |
| dcterms.language | en | |
| dcterms.publisher | Informa UK Limited | en |
| dcterms.subject | subhumid zones | en |
| dcterms.subject | potassium | en |
| dcterms.subject | pastures | en |
| dcterms.subject | feed legumes | en |
| dcterms.subject | nutrient deficiency | en |
| dcterms.subject | yields | en |
| dcterms.subject | dry matter content | en |
| dcterms.type | Journal Article |