| 000 | 02938nab a22003857a 4500 | ||
|---|---|---|---|
| 001 | G93724 | ||
| 003 | MX-TxCIM | ||
| 005 | 20230811203719.0 | ||
| 008 | 200915s2009 ne |||p|op||| 00| 0 eng d | ||
| 022 | _a0334-5114 | ||
| 022 | _a1878-7665 (Online) | ||
| 024 | 8 | _ahttps://doi.org/10.1007/BF03179988 | |
| 040 | _aMX-TxCIM | ||
| 041 | _aeng | ||
| 090 | _aCIS-5855 | ||
| 100 | 1 |
_aTauro, T.P. _915856 |
|
| 245 | 1 | 0 | _aGermination, field establishment patterns and nitrogen fixation of indigenous legumes on nutrient-depleted soils |
| 260 |
_aNetherlands : _bSpringer, _c2009. |
||
| 500 | _aPeer review | ||
| 500 | _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0334-5114 | ||
| 520 | _aIntegrating N2-fixing indigenous legumes in smallholder farming systems has potential to alleviate some of the major soil fertility constraints associated with lack of nitrogen (N) inputs in many parts of Sub-SaharanAfrica. Studies were conducted under low (450¨C650 mm yr−1) and high (>800 mm yr−1) rainfall areas in Zimbabwe to investigate the establishment and nitrogen fixation patterns of fifteen indigenous legume species. The legume seeds were broadcast in mixtures at 120 seeds m−2 species−1 during 2004/05 and 2005/06 rainfall seasons.Eriosema ellipticum, Crotalaria ochroleuca andC. pallida had emergence rates above 15% compared with <10% forTephrosia radicans andIndigofera astragalina. Seed hardness accounted for >50% germination failure, while low viability explained 10¨C30%.Crotalaria ochroleuca andC. pallida attained a maximum biomass of 5¨C9 t ha−1 (dry weight) over six months, while species that reached peak biomass over three months (e.g.C. cylindrostachys andC. glauca) gave lowest yields of ¡Ö0.5 t ha−1. Biennials,Neonotonia wightii, E. ellipticum and Tephrosia radicans, exhibited slow growth rates and only attained their maximum biomass of ¡Ö2 t ha−1 in the second season. The legumes derived 60¨C99% of their N from the atmosphere, fixing 5¨C120 kg N ha−1 under low rainfall and 78¨C267 kg N ha−1 under high rainfall. These findings suggest that the legumes could contribute in restoring productivity of soils continuously cultivated with little or no nutrient inputs in most of Zimbabwe and similar agro-ecologies in SubSaharan Africa. | ||
| 536 | _aConservation Agriculture Program | ||
| 546 | _aText in English | ||
| 594 | _aINT2737 | ||
| 650 | 7 |
_aLandraces _96305 _2AGROVOC |
|
| 650 | 7 |
_aLegumes _2AGROVOC _91963 |
|
| 650 | 7 |
_aNutrients _2AGROVOC _91192 |
|
| 650 | 7 |
_aSmallholders _2AGROVOC _91763 |
|
| 700 | 1 |
_aNezomba, H. _915857 |
|
| 700 | 1 |
_aMtambanengwe, F. _915811 |
|
| 700 | 1 |
_aMapfumo, P. _93354 |
|
| 773 | 0 |
_tSymbiosis _gv. 48, no. 1-3, p. 92-101 _dNetherlands : Springer, 2009. _x0334-5114 |
|
| 856 | 4 |
_uhttps://hdl.handle.net/20.500.12665/177 _yAccess only for CIMMYT Staff |
|
| 942 |
_cJA _2ddc _n0 |
||
| 999 |
_c27952 _d27952 |
||