Rhizobium inoculation trials designed to support a tropical forage legume selection programme
Three phases of Rhizobium inoculation trials were carried out as part of a programme to select forage legume germplasm adapted to acid, infertile Oxisols of tropical America. Firstly, a range of tropical forage legumes were evaluated for their response to N fertilization or inoculation with strains...
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| Format: | Journal Article |
| Language: | Inglés |
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Springer
1984
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| Online Access: | https://hdl.handle.net/10568/44058 |
| _version_ | 1855530301196861440 |
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| author | Sylvester-Bradley, Rosemary |
| author_browse | Sylvester-Bradley, Rosemary |
| author_facet | Sylvester-Bradley, Rosemary |
| author_sort | Sylvester-Bradley, Rosemary |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Three phases of Rhizobium inoculation trials were carried out as part of a programme to select forage legume germplasm adapted to acid, infertile Oxisols of tropical America. Firstly, a range of tropical forage legumes were evaluated for their response to N fertilization or inoculation with strains previously shown to be effective in Leonard jars, using cores of undisturbed soil or in the field at Carimagua, Meta, Colombia. In pure legume stands onlyCentrosema macrocarpum andC. pubescens showed increases in N yield due to both inoculation and N fertilization;C. brasilianum responded only to N fertilization;Zornia latifolia, Z. brasiliensis andStylosanthes capitata responded to neither treatment. Trials in cores and in grass-legume mixtures showed responses ofDesmodium ovalifolium, Pueraria phaseoloides andS. capitata to N fertilization but not to inoculation. In the second phase of experiments strains were screened in soil cores with 16 ecotypes ofDesmodium, Centrosema, Stylosanthes andPueraria spp. Significant increases in N yield due to inoculation occurred with at least one strain in all the legumes exceptS. guianensis tardio , and in some trials withS. capitata. In the third phase of trials the most effective strains were tested in the field. Significant response ofP. phaseoloides andC. macrocarpum to inoculation at two sites and in the second year after establishment were shown. Further screening trials and field trials at different sites are needed in order to provide better recommendations for inoculation of grazing trials being set up in the region under study. |
| format | Journal Article |
| id | CGSpace44058 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1984 |
| publishDateRange | 1984 |
| publishDateSort | 1984 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace440582024-08-27T10:36:23Z Rhizobium inoculation trials designed to support a tropical forage legume selection programme Sylvester-Bradley, Rosemary feed crops zornia brasiliensis zornia brachiaria decumbens centrosema brasilianum centrosema macrocarpum desmodium canum desmodium heterophyllum desmodium ovalifolium establecimiento fertilizantes fijacion de n inoculacion llanos orientales melinis minutiflora nodulación oxisoles praderas pueraria phaseoloides rhizobium stylosanthes capitata stylosanthes guianensis bacterias nitrificantes brachiaria centrosema desmodium gramineas leguminosas melinis minerales y nutrimentos pueraria sabanas simbiosis stylosanthes Three phases of Rhizobium inoculation trials were carried out as part of a programme to select forage legume germplasm adapted to acid, infertile Oxisols of tropical America. Firstly, a range of tropical forage legumes were evaluated for their response to N fertilization or inoculation with strains previously shown to be effective in Leonard jars, using cores of undisturbed soil or in the field at Carimagua, Meta, Colombia. In pure legume stands onlyCentrosema macrocarpum andC. pubescens showed increases in N yield due to both inoculation and N fertilization;C. brasilianum responded only to N fertilization;Zornia latifolia, Z. brasiliensis andStylosanthes capitata responded to neither treatment. Trials in cores and in grass-legume mixtures showed responses ofDesmodium ovalifolium, Pueraria phaseoloides andS. capitata to N fertilization but not to inoculation. In the second phase of experiments strains were screened in soil cores with 16 ecotypes ofDesmodium, Centrosema, Stylosanthes andPueraria spp. Significant increases in N yield due to inoculation occurred with at least one strain in all the legumes exceptS. guianensis tardio , and in some trials withS. capitata. In the third phase of trials the most effective strains were tested in the field. Significant response ofP. phaseoloides andC. macrocarpum to inoculation at two sites and in the second year after establishment were shown. Further screening trials and field trials at different sites are needed in order to provide better recommendations for inoculation of grazing trials being set up in the region under study. 1984-10 2014-10-02T08:33:10Z 2014-10-02T08:33:10Z Journal Article https://hdl.handle.net/10568/44058 en Limited Access Springer |
| spellingShingle | feed crops zornia brasiliensis zornia brachiaria decumbens centrosema brasilianum centrosema macrocarpum desmodium canum desmodium heterophyllum desmodium ovalifolium establecimiento fertilizantes fijacion de n inoculacion llanos orientales melinis minutiflora nodulación oxisoles praderas pueraria phaseoloides rhizobium stylosanthes capitata stylosanthes guianensis bacterias nitrificantes brachiaria centrosema desmodium gramineas leguminosas melinis minerales y nutrimentos pueraria sabanas simbiosis stylosanthes Sylvester-Bradley, Rosemary Rhizobium inoculation trials designed to support a tropical forage legume selection programme |
| title | Rhizobium inoculation trials designed to support a tropical forage legume selection programme |
| title_full | Rhizobium inoculation trials designed to support a tropical forage legume selection programme |
| title_fullStr | Rhizobium inoculation trials designed to support a tropical forage legume selection programme |
| title_full_unstemmed | Rhizobium inoculation trials designed to support a tropical forage legume selection programme |
| title_short | Rhizobium inoculation trials designed to support a tropical forage legume selection programme |
| title_sort | rhizobium inoculation trials designed to support a tropical forage legume selection programme |
| topic | feed crops zornia brasiliensis zornia brachiaria decumbens centrosema brasilianum centrosema macrocarpum desmodium canum desmodium heterophyllum desmodium ovalifolium establecimiento fertilizantes fijacion de n inoculacion llanos orientales melinis minutiflora nodulación oxisoles praderas pueraria phaseoloides rhizobium stylosanthes capitata stylosanthes guianensis bacterias nitrificantes brachiaria centrosema desmodium gramineas leguminosas melinis minerales y nutrimentos pueraria sabanas simbiosis stylosanthes |
| url | https://hdl.handle.net/10568/44058 |
| work_keys_str_mv | AT sylvesterbradleyrosemary rhizobiuminoculationtrialsdesignedtosupportatropicalforagelegumeselectionprogramme |