Agroforestry 1 Agroforestry and Multipurpose Trees: Community, Farm and Social Forestry 1 Azolla 1 Biochemistry and Physiology of Microorganisms, (New March 2000) 1 Cover crops 1 Cropping systems 1 Crops 1 Fabaceae 1 Ferns 1 Fertilizers and other Amendments 1 Field Crops, (New March 2000) 1 Fodder legumes Forage and Fodder Crops, (New March 2000) 1 Forests and Forest Trees (Biology and Ecology) 1 Green manures 1 Horticultural Crops, (New March 2000) 1 Innovation adoption 1 Legumes 1 Multiple cropping 1 Nitrogen 1 Nitrogen fixation 1 Nitrogen fixing bacteria 1 Nitrogen fixing trees 1 Nitrogen-fixing plants 1 Oryza 1 Oryza sativa 1 Pasture legumes 1 Pastures 1 Plant Cropping Systems 1 Plant Nutrition 1