Select Guide Rating

• 1: Tropical Environments: Climates, Soils and Cropping Systems 2: N2-fixing Organisms in the Tropics 3: The Process of Nitrogen Fixation 4: Assessment of the Role of Nitrogen Fixation 5: Cycling of Fixed N2 in Tropical Cropping Systems 6: Cereal Crops and Grasses: Free-living, Root Associated and Endophytic Nitrogen Fixing Bacteria 7: Cyanobacteria and Azolla as Green Manure for Wetland Rice 8: Grain Legumes for Food, Fodder and Soil Fertility 9: Legumes as Green Manures and Cover Crops 10: Forage Legumes in Pastures and Leys 11: Plantation Crops: Understorey Legumes and Shade Trees 12: Agroforestry: Nitrogen Fixing Trees in Integrated Agriculture 13: Environmental Constraints to Nitrogen Fixation 14: Approaches to Enhancing N2-fixation 15: Future Impacts of N2-fixation in Tropical Agriculture

Select Guide Rating

• 1: Tropical Environments: Climates, Soils and Cropping Systems 2: N2-fixing Organisms in the Tropics 3: The Process of Nitrogen Fixation 4: Assessment of the Role of Nitrogen Fixation 5: Cycling of Fixed N2 in Tropical Cropping Systems 6: Cereal Crops and Grasses: Free-living, Root Associated and Endophytic Nitrogen Fixing Bacteria 7: Cyanobacteria and Azolla as Green Manure for Wetland Rice 8: Grain Legumes for Food, Fodder and Soil Fertility 9: Legumes as Green Manures and Cover Crops 10: Forage Legumes in Pastures and Leys 11: Plantation Crops: Understorey Legumes and Shade Trees 12: Agroforestry: Nitrogen Fixing Trees in Integrated Agriculture 13: Environmental Constraints to Nitrogen Fixation 14: Approaches to Enhancing N2-fixation 15: Future Impacts of N2-fixation in Tropical Agriculture