Nitrogen Fixation in Tropical Cropping SystemsCABI, 1 janv. 2001 - 423 pages Nitrogen fixation by leguminous plants is especially important when farmers are trying to minimize fertilizer use for cost or environmental reasons. This second edition of the highly successful book, first published in 1991, contains thoroughly updated and revised material on the theory and practice of nitrogen fixation in tropical cropping systems. The significant research advances in the last ten years on both a fundamental and applied level are covered, including those relating to the classification and description of N2-fixing bacteria and symbioses and the processes of N2-fixation. |
Table des matières
Climates Soils and Cropping Systems | 3 |
Chapter 2 N2fixing Organisms in the Tropics | 13 |
Chapter 3 The Process of N2fixation | 56 |
Chapter 4 Assessment of the Role of N2fixation | 72 |
Chapter 5 Cycling of Fixed N in Tropical Cropping Systems | 93 |
Part II Tropical Crops and Cropping Systems | 109 |
Freeliving Rootassociated and Endophytic N2fixing Bacteria | 111 |
Chapter 7 Cyanobacteria and Azolla as Green Manure for Wetland Rice | 128 |
Understorey Legumes and Shade Trees | 212 |
N2fixing Trees in Integrated Agriculture | 222 |
Part III Optimizing N2fixation | 251 |
Chapter 13 Environmental Constraints to N2fixation | 253 |
Chapter 14 Approaches to Enhancing N2fixation | 271 |
Chapter 15 Future Impacts of N2fixation in Tropical Agriculture | 299 |
References | 309 |
List of Common Names | 407 |
Chapter 8 Grain Legumes for Food Fodder and Soil Fertility | 140 |
Chapter 9 Legumes as Green Manures and Cover Crops | 169 |
Chapter 10 Forage Legumes in Pastures and Leys | 187 |
Autres éditions - Tout afficher
Nitrogen Fixation in Tropical Cropping Systems Ken E. Giller,Kate J. Wilson Affichage d'extraits - 1991 |
Expressions et termes fréquents
15N isotope dilution 15N-enrichment 15N-labelled ability Acacia acetylene acid soils Africa agriculture agroforestry Agroforestry Systems alley cropping aluminium amount of N2 azolla Azospirillum bacteria bean benefits Biology and Biochemistry biomass Boddey Bradyrhizobium Bradyrhizobium strains Cadisch cells cereal Chapter cover crops cowpea cropping systems cyanobacteria Döbereiner effects estimates fallows farmers field fix N2 fodder forage Frankia free-living genes genotypes genus Giller grain legumes grasses grazing green manure groundnut growing grown growth host plant improved increased infection inoculation inoculum intercropping isolated kg N ha-1 Ladha legume trees legumes Leucaena maize method Microbiology mucuna mycorrhizas N2-fixation N2-fixing bacteria nitrate nitrogen fixation nitrogenase nitrogenase activity nutrients pasture legumes Phaseolus vulgaris phosphorus pigeonpea Plant and Soil plantations production protein reduced residues rhizobia rhizobial strains Rhizobium rhizosphere rice root nodules rostrata seed Sesbania smallholder Soil Biology soil fertility soybean species Stylosanthes symbiosis symbiotic tropical pasture uptake ureide varieties yields