Data/hora: 28/05/2024 00:53:08

Biblioteca(s): 	Embrapa Algodão; Embrapa Amazônia Ocidental; Embrapa Caprinos e Ovinos; Embrapa Meio Norte / UEP-Parnaíba; Embrapa Trigo.	
Data corrente: 	13/05/1994	
Data da última atualização: 	08/04/2008	
Autoria: 	LATHWELL, D. J.	
Título: 	Crop response to liming of ultisols and oxisols.	
Ano de publicação: 	1979	
Fonte/Imprenta: 	Ithaca: Cornell University, 1979.	
Páginas: 	36p.	
Série: 	(College of Agriculture and Life Sciences. International Agriculture Bulletin, 35).	
Idioma: 	Inglês
Português	
Conteúdo: 	Experiments were carried out on representative Ultisols and Oxisols of Puerto Rico, Brazil, Ghana, and Peru to define the lime requirements of these soils for optimum production of several food crops. These soils generally have a low cation exchange capacity. Since the soils are acid, the exchange complex is dominated by exchangeable Al. Crop response to lime has been common in these soils. Response to lime is attributed to neutralization of exchangeable Al and in some instances to elimination of Mn toxicity. The exchangeable Al content of these soils provides a reliable measure of their lime requirement. A few acid soils have a low cation exchange capacity and a low content of exchangeable Al. Their lime requirement is relatively low. On some soils, lime additions may exchange the availability of soil phosphorus. Weathering of minerals such as Al-chlorine and mineralization of organic matter provide sources of exchangeable Al in certain soils and increase their lime requirement.	
Palavras-Chave: 	Brasil; Colagem; Oxissolos; Porto Rico; Response; Resposta; Solos; Utissolos; Vegetal production.	
Thesagro: 	Calagem; Calcário; Fertilidade; Produção Vegetal; Solo.	
Thesaurus Nal: 	liming; Oxisols; Ultisols.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Amazônia Ocidental (CPAA)	
Exemplares: 	CPAMN-UEPP - (7504-1) - ADD - FL - -- -  -  - 1990.01219 - DIS
CNPA - (8490-1) - ADD - FL - -- - FOL 0869 -  - 1994.7967 - DIS
CNPC - (13564-1) - ADD - FL - PP - FOL 00479 -  - FOL 00479 - DIS
CPAA - (19613-1) - ADD - FL - -- - FOL4647 -  - FOL4647 - DIS
CNPT - (36709-1) - ADD - FL - -- - FL-05527 -  - 05527 - DIS