Data/hora: 01/06/2024 00:56:54

Biblioteca(s): 	Embrapa Acre; Embrapa Agrobiologia; Embrapa Agropecuária Oeste; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Rondônia; Embrapa Trigo.	
Data corrente: 	27/10/1995	
Data da última atualização: 	06/08/2010	
Autoria: 	AYANABA, A.; DART, P. J. (ed.).	
Título: 	Biological nitrogen fixation in farming systems of the tropics.	
Ano de publicação: 	1977	
Fonte/Imprenta: 	Chichester: J. Wiley, 1977.	
Páginas: 	377 p.	
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. 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 revelant Hawaiian research. Ecology and physiology of rhizobia. Ecology of nitrogen-fixing organisms. 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 legumes. 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 rice rhizosphere: methods of measurement nad 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 lysimater studies. Nitrate leaching and chemical decomposition of nitrites in tropical soils.	
Palavras-Chave: 	Cultivation System; Fixacao; Fixacao biologica de nitrogenio; Microorganismo; Nitrogen Biologic Fixing; Regiao Tropical; Tropical region.	
Thesagro: 	Agricultura; Fixação de Nitrogênio; Microrganismo; Nitrogênio; Sistema de Cultivo; Solo.	
Thesaurus Nal: 	agriculture; cropping systems; nitrogen fixation.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Arroz e Feijão (CNPAF)	
Exemplares: 	CNPAF - (19691-1) - ADC - LV - -- - 572.545 - A973b - 1984.00147 - DIS
CPAO - (25948-1) - ADC - LV - -- - 631.840913 - A973b - 82.00330 - DIS
CPATU - (20136-1) - ADC - LV - -- - 589.704133 - A973b - 1981.00970 - DIS
CPAF-AC - (2368-1) - ADC - LV - PP - 546.711 - A973b - 2001544 - DIS
CNPAB - (31882-1) - ADD - LV - -- - 2005.0073 -  - 2005.00073 - DIS
CPAF-RO - (4013-1) - ADC - LV - -- - 546.711 - A973b - 1983.0086 - DIS
CNPT - (1620-1) - ADC - LV - -- - 658.40320606 - A973b - 79.00511 - DIS