Potassium requirements of a grass/legume pasture established on selected soils of the subhumid zone of Nigeria
The fast depletion of available potassium (K) in soils of the subhumid zone (SHZ) of Nigeria has become a problem for the formulation of fertilizer recommendations, especially in the grass/legume mixtures of the fodder bank system. Five different K fertilizer recommendation models viz. Control, Conv...
| Autores principales: | , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Informa UK Limited
1995
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/28426 |
| _version_ | 1855523550356570112 |
|---|---|
| author | Tening, A.S. Omueti, J.A.I. Tarawali, G. |
| author_browse | Omueti, J.A.I. Tarawali, G. Tening, A.S. |
| author_facet | Tening, A.S. Omueti, J.A.I. Tarawali, G. |
| author_sort | Tening, A.S. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The fast depletion of available potassium (K) in soils of the subhumid zone (SHZ) of Nigeria has become a problem for the formulation of fertilizer recommendations, especially in the grass/legume mixtures of the fodder bank system. Five different K fertilizer recommendation models viz. Control, Conventional Rate, Fractional Recovery, Mitscherlich Baule Units, and Nutrient Supplementation Index were employed to determine the amount of K required to satisfy the needs of an Andropogon/stylo mixture. Andropogon gayanus (grass) and Stylosanthes hamata cVerano (legume) seeds were sown in June 1991. Cutting started two months after planting and continued at monthly intervals during the rainy season and bimonthly in the dry season till mid dry season when there is usually feed crisis. The Andropogon/stylo mixture grown on soils of the SHZ will require no K fertilization when the soil test value is more than 0.20 comol/kg. The soils require an application of 52 kg K20/ha when the soil test value is less than 0.20 comol/kg. Dry matter yield and K uptake of the Andropogon/stylo mixture increased up to October 1991 and started decreasing with subsequent cuttings. Among the recommendation models tested for K fertilization of the Andropogon/stylo mixture, the Fractional Recovery model was the most appropriate and is therefore recommended for determining K levels to apply to Andropogon and stylo in the SHZ. |
| format | Journal Article |
| id | CGSpace28426 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1995 |
| publishDateRange | 1995 |
| publishDateSort | 1995 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace284262024-05-01T08:17:00Z Potassium requirements of a grass/legume pasture established on selected soils of the subhumid zone of Nigeria Tening, A.S. Omueti, J.A.I. Tarawali, G. subhumid zones potassium pastures feed grasses feed legumes soil nutritional requirements cropping systems fertilizers The fast depletion of available potassium (K) in soils of the subhumid zone (SHZ) of Nigeria has become a problem for the formulation of fertilizer recommendations, especially in the grass/legume mixtures of the fodder bank system. Five different K fertilizer recommendation models viz. Control, Conventional Rate, Fractional Recovery, Mitscherlich Baule Units, and Nutrient Supplementation Index were employed to determine the amount of K required to satisfy the needs of an Andropogon/stylo mixture. Andropogon gayanus (grass) and Stylosanthes hamata cVerano (legume) seeds were sown in June 1991. Cutting started two months after planting and continued at monthly intervals during the rainy season and bimonthly in the dry season till mid dry season when there is usually feed crisis. The Andropogon/stylo mixture grown on soils of the SHZ will require no K fertilization when the soil test value is more than 0.20 comol/kg. The soils require an application of 52 kg K20/ha when the soil test value is less than 0.20 comol/kg. Dry matter yield and K uptake of the Andropogon/stylo mixture increased up to October 1991 and started decreasing with subsequent cuttings. Among the recommendation models tested for K fertilization of the Andropogon/stylo mixture, the Fractional Recovery model was the most appropriate and is therefore recommended for determining K levels to apply to Andropogon and stylo in the SHZ. 1995-09 2013-05-06T07:00:35Z 2013-05-06T07:00:35Z Journal Article https://hdl.handle.net/10568/28426 en Limited Access Informa UK Limited Communications in Soil Science and Plant Analysis;26(15&16): 2403-2424 |
| spellingShingle | subhumid zones potassium pastures feed grasses feed legumes soil nutritional requirements cropping systems fertilizers Tening, A.S. Omueti, J.A.I. Tarawali, G. Potassium requirements of a grass/legume pasture established on selected soils of the subhumid zone of Nigeria |
| title | Potassium requirements of a grass/legume pasture established on selected soils of the subhumid zone of Nigeria |
| title_full | Potassium requirements of a grass/legume pasture established on selected soils of the subhumid zone of Nigeria |
| title_fullStr | Potassium requirements of a grass/legume pasture established on selected soils of the subhumid zone of Nigeria |
| title_full_unstemmed | Potassium requirements of a grass/legume pasture established on selected soils of the subhumid zone of Nigeria |
| title_short | Potassium requirements of a grass/legume pasture established on selected soils of the subhumid zone of Nigeria |
| title_sort | potassium requirements of a grass legume pasture established on selected soils of the subhumid zone of nigeria |
| topic | subhumid zones potassium pastures feed grasses feed legumes soil nutritional requirements cropping systems fertilizers |
| url | https://hdl.handle.net/10568/28426 |
| work_keys_str_mv | AT teningas potassiumrequirementsofagrasslegumepastureestablishedonselectedsoilsofthesubhumidzoneofnigeria AT omuetijai potassiumrequirementsofagrasslegumepastureestablishedonselectedsoilsofthesubhumidzoneofnigeria AT tarawalig potassiumrequirementsofagrasslegumepastureestablishedonselectedsoilsofthesubhumidzoneofnigeria |