Data/hora: 06/06/2024 02:30:16

Biblioteca(s): | Embrapa Gado de Corte.
Tipo da produção científica: | Capítulo em Livro Técnico-Científico
Circulação/Nível: | -- - --
Data corrente: | 23/07/2007
Data da última atualização: | 26/10/2007
Autoria: | SHIMODA, K.; WATANABE, T.; HORITA, T.; HOSHIBA, K.; T.; MACEDO, M. C. M.; MIRANDA, C. H. B.
Título: | Evaluation of effects of an agro-pastoral system on soybean production and soil properties.
Ano de publicação: | 2007
Fonte/Imprenta: | In: SUENAGA, K.; KUDO, H.; OSHIO, S. (Ed.). Comprehensive studies on the development of sustainable soybean production technology in South America. Tsukuba: JIRCAS, 2007.
Páginas: | p. 67-71.
Série: | (JIRCAS Working Report, n. 51).
Idioma: | Inglês
Notas: | CNPGC.
Conteúdo: | The  purpuose of this study was to investigate the effects of an agro-pastoral system on soil chemical and physical properties and to compare the production of soybean between the agro-pastoral system and a continuous croppping system. Therefore, experiments in an agro-pastoral system have been conducted in CETAPAR-JICA Paraguay since 2003. Soybean production  in agro-pastoral plots during the 2002-2004 and 2004-2005 cropping seasons was 1.48 ton/ha and 3.56 ton/ha, respectively. On the other had, production in continuos crop-cultivation lots was 0,65 ton/ha and 1.91 ton/ha, respectivelly. The soybean production of agro-pastoral plots was  twice as high as that of continuous crop-cultivation plots. The concentrations of P.K. and  Mgat the soil surgace  in agro-pastoral plots were significantly lower  than those in the continuous crop-cultivation plots. Guineagrass appeared to absorb the  nutrients from the soil under conditions of low fertilization. However, the concentrations of Ca were not different betwee the plots. The content of organic matter in soil at each depth measured in the agro-pastoral plots, was  significantly higher  than that of the  continuous cro-cultivation plots. In addition, the physical properties (gaseous phase of soil, bulk density and soil aggrefate of the soil werw improved by the supply of litter and extension of guineagrass (Panium maximum)roots. It was concluded that these properties have positive effects in the agro-pastoral system.
Palavras-Chave: | Agropastoral systems; Brasil; Brazilian savannas; Integração agricultura pecuária; Production; Soils.
Thesagro: | Cerrado; Panicum Maximum; Pastagem; Produção; Soja; Solo.
Thesaurus Nal: | Brazil; pastures; soybeans.
Categoria do assunto: | --
Registro original: | Embrapa Gado de Corte (CNPGC)
Exemplares: | CNPGC - (11531-1) - UMT - PL - -- - Séries -  -  - DIS