Data/hora: 12/06/2024 05:38:33

Biblioteca(s): 	Embrapa Soja.	
Data corrente: 	06/04/2004	
Data da última atualização: 	27/07/2007	
Autoria: 	SARAIVA, O. F.; TORRES, E.; FRANCHINI, J. C.; BROWN, G.; PICCININ, J.; CARDOSO, E. G.; ZOTARELLI, L.	
Título: 	Performance of soybean and wheat crops in a Haplorthox under different soil tillage systems for 22 years, in Brazil.	
Ano de publicação: 	2004	
Fonte/Imprenta: 	In: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004.	
Páginas: 	190.	
Série: 	(Embrapa Soja. Documentos, 228).
	
Idioma: 	Inglês	
Notas: 	Editado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi.	
Conteúdo: 	The objective of this study was to evaluate the performance of soybean and wheat in a Haplorthox (Latossolo Vermelho distroférrico) under different soil tillage systems for 22 years, in Londrina, Paraná State , Brazil. The experiment started in 1981. The following treatment were disposed in a randomized block design with four replications: no-tillage; conventional tillage (disc plow + light-disc harrow); plow with field cultivator (field cultivator + plain harrow); and heavy-disc harrow (heavy-disc harrow + plain harrow). The results show that the single crop rotation soybean/wheat does not offer sustainability to no-tillage system, mainly, into the first five years of cropping. In this period, the performance of no-tillage was similar or lower than the conventional system in this soil previously cultivated with heavy-disc plow for long time. After six years, no-tillage improved gradually the soil performance and crop yield was increased. Soybean and wheat yields were lower in the first years, but gradually soybean yield showed significant gains while wheat yield remained the same. This fact shows that the single rotation soybean/wheat was not profitable for wheat under no-tillage system.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Soja (CNPSO)	
Exemplares: 	CNPSO - (23733-1) - UMT - PL - -- - RF 633.34072 - W927a -  - DIS