Data/hora: 04/06/2024 18:17:11

Biblioteca(s): 	Embrapa Amazônia Ocidental.	
Data corrente: 	04/12/2000	
Data da última atualização: 	17/06/2015	
Autoria: 	CAMPOS, C. E. B.; LEHMANN, J.	
Afiliação: 	Bolsista CNPq; University of Bayreuth.	
Título: 	Contrasting tree effects on soil P sorption and availability on a Xanthic Ferralsol.	
Ano de publicação: 	2000	
Fonte/Imprenta: 	In: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS, 2000, Hamburg. Programa and abstracts... Hamburg: University, 2000.	
Páginas: 	p. 174.	
Idioma: 	Inglês	
Conteúdo: 	The central objective of these work is the investigation of the availability of soil P as affected by two tree species (cupuacu, urucu, pueraria) with widely different P return, in tne Manaus-AM (Brasil). Phosphorus adsorption did not increase with an exposure longer than 8 h. Therefore, adsorption isotherms can be done within 8 h in the studied soils. In general, about 50% of the added P were adsorbed by the soil matrix. The adsorption decreased for soils which received higher amounts of P fertilizer, indicating that adsorption sities were already blocked by previous fertilization. soils under cupuacu adsorbed more of the added P than soil under ururcu (annatto). This can be explained by the high amounts of organic P which is present in soils under urucu as an effect of high P recycling through litterfall.	
Palavras-Chave: 	Agrofloresta; Cultivo multiple; Fertilizers application; Potash fertilizers; Root.	
Thesagro: 	Absorção; Adubação; Bactris Gasipaes; Conservação do Solo; Cupuaçu; Fertilizante Fosfatado; Floresta Tropical Úmida; Pueraria Phaseoloides; Pupunha; Raiz; Theobroma Grandiflorum.	
Thesaurus Nal: 	adsorption; agroforestry; multiple cropping; soil conservation; tropical rain forests.	
Categoria do assunto: 	--	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/125524/1/p.-174.pdf	
Registro original: 	Embrapa Amazônia Ocidental (CPAA)	
Exemplares: 	CPAA - (5618-1) - UPC - RA - PP - R634.99 - G275p - 2000.00193 - DIS