Data/hora: 09/06/2024 15:34:34

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 12/01/1997
Data da última atualização: | 28/08/2019
Autoria: | BEZERRA NETO, F.; ROBICHAUX, R. H.
Afiliação: | Francisco Bezerra Neto, Escola Superior de Agricultura de Mossoró - ESAM/Departamento de Fitopatologia; Robert H. Robichaux, University Arizona/Departament of Ecology & Evoluationary Biology.
Título: | Spatial arrangement and density effects on an annual cotton/cowpea/maize intercrop. I. Agronomic efficiency.
Ano de publicação: | 1996
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 31, n. 10, p. 729-741, out. 1996.
Idioma: | Inglês
Notas: | Título em português: Efeitos de arranjo espacial e densidade de plantas no consórcio algodão herbáceo/caupi/milho. I. Eficiência agronômica.
Conteúdo: | Field experiments were conducted in Tucson, Arizona, to examine the effects of spatial arrangement and density on the agronomic efficiency of an annual cotton/cowpea/maize intercrop. The major results were: (1) the Land Equivalent Ratio (LER) for yield was higher in the spatial arrangement of single rows of cowpea and maize between single rows of cotton, (2) cowpea proportional LER for yield was higher in the spatial arrangements in which cowpea and maize were grown in separate rows, whereas maize proportional LER for yield was higher in the spatial arrangements in which cowpea and maize were grown in the same rows; (3) cotton and cowpea proportional LERs for yield decreased, whereas maize proportional LER for yield increased, as cowpea/maize density increased from 20,000 to 50,000 plants ha; (4) LERs for biomass and yeild were not affected as cotton density increased from 25,000 to 75,000 plants ha, and (5) LERs for biomass and yield were higher than expected in the various treatments much more frequently for maize than for cotton or cowpea.
Palavras-Chave: | Consorciacao de culturas; Fileiras separadas; Fileiras simples; Gossypium hirsutum L; Intercorp system; Separate rows; Single rows.
Thesagro: | Vigna Unguiculata; Zea Mays.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/19341/1/pab96_08_out.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (19341-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS