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Biblioteca(s): | Embrapa Agrobiologia.
Data corrente: | 21/09/1998
Data da última atualização: | 21/09/1998
Autoria: | AYANABA, A.; DART, P. J.
Título: | Biological nitrogen fixation in farming systems of the tropics.
Ano de publicação: | 1977
Fonte/Imprenta: | New York: John Willey, 1977.
Páginas: | 377p.
ISBN: | 0-471-99499-5
Idioma: | Inglês
Notas: | Based on papers presented at a Symposium Held at the International Institute of Tropical Agriculture, Ibadan, Nigeria, in october, 1975.
Conteúdo: | General considerations. Present and future opportunities to improve the nitrogen nutrition of crops through biological fixation. Contribution of microorganisms to the nitrogen status of tropical soils. Soil nitrogen changes in farming systems in the humid tropics. Legumes in farming systems of the tropics. The nutritional role of grain legumes in the lowland humid tropics. Legumes in farming systems of the humid tropics. Transfer of nitrogen between legumes and other crops. Contribution of forage legumes to the nitrogen economy of mixed swards. A review of relevant Hawaiian research. Ecology and physiology of rhizobia. The ecology of rhizobium and recent advances in the study of the ecology of rhizobium. Effectiveness, saprophytic and competitive ability: three properties of rhizobium essential for increasing the yield of inoculated legumes. Recent advances in tissue-culture studies of the legume - rhizobium symbiosis. Host - symbiont relationships in nodule development and nitrogen fixation. Factors controlling nitrogen fixation by rhizobia. Nitrogen fixation in legumed. The development and use of legume inoculants. Toward better use of inoculants in the humid tropics. Nutritional factors limiting nitrogen fixed by rhizobia. Effects of fertilizer use on cowpea and soybean nodulation and nitrogen fixation in the lowland tropics. Nodulation and nitrogen fixation in legumes in Ghana. Nodulation and nitrogen fixation in legumes in east Africa. Response of soybean to rhizobium inoculation at Morogoro, Tanzania. Non-legume sources of biological nitrogen in nature. Contribution of free-living bacteria to the nitrogen status of humid tropical soils. Non-symbiotic nitrogen fixation in tropical humid soils, with particular reference to Nigeria. Nitrogen-fixing associations between bacteria and tropical grass roots. Non-symbiotic nitrogen fixation in rice and rice fields. Yield increases of tropical grain and forage grasses after inoculation with spirillum lipoferum in Florida. Nitrogen fixation in the rice rhizosphere: methods of measurement and practices suggested to enhance the process. Measuring nitrogen gains and losses in farming systems. The acetylene - ethylene assay and other measures of nitrogen fixation in field experiments. Use of nitrogen-tracer techniques for research on nitrogen fixation. Determination of losses of nitrogen from soils in the humid tropics by lysimeter studies. Nitrate leaching and chemical decomposition of nitrites in tropical soils.
Palavras-Chave: | BNF; FBN; Fixacao biologica de nitrogenio.
Thesagro: | Exploração Agrícola.
Thesaurus Nal: | farming systems; nitrogen fixation.
Categoria do assunto: | --
Registro original: | Embrapa Agrobiologia (CNPAB)
Exemplares: | CNPAB - (24764-1) - ADC - PC - -- - 546.711 - A973b - 1981.00031 - DIS