SciELO - Scientific Electronic Library Online

 
vol.83 número3Chemical migration during soil water retention curve evaluation37 years of scientific activity in a Biochemistry Department in Brazil: patterns of growth and factors leading to increased productivity índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Anais da Academia Brasileira de Ciências

versão impressa ISSN 0001-3765

Resumo

CECILIO FILHO, Arthur B.; REZENDE, Bráulio L.A.; BARBOSA, José C.  e  GRANGEIRO, Leilson C.. Agronomic efficiency of intercropping tomato and lettuce. An. Acad. Bras. Ciênc. [online]. 2011, vol.83, n.3, pp. 1109-1119. ISSN 0001-3765.  http://dx.doi.org/10.1590/S0001-37652011000300029.

Four experiments were carried out at the São Paulo State University, Brazil, with the aim of determining the agronomic viability of intercropping tomato and lettuce, under greenhouse conditions. The studied intercropping systems were established by transplanting lettuce at 0, 10, 20 and 30 days after transplanting (DAT) tomato and by transplanting tomato at 0, 10, 20 and 30 DAT lettuce. Intercropped tomato and lettuce were evaluated during two seasons and compared to their sole cropping. The experimental design was a randomized complete block with nine treatments. The productivity and the classification of the tomato fruits were not influenced by having lettuce intercropped with it, but lettuce production was lowered when tomato was intercropped with it. The longer the delay in lettuce transplanting, the greater the reduction in its productivity. There was an effect of cropping season on the extent of the agronomic advantage of intercropping over sole cropping. In the first cropping season, intercropping established by transplanting lettuce during the interval between 30 days before up to 20 DAT tomato yielded land use efficiency (LUE) indices of 1.63 to 2.22. In the second period, intercropping established with the transplanting of lettuce up to 30 days before tomato yielded LUE indices of 1.57 to 2.05.

Palavras-chave : cropping systems; greenhouse; Lactuca sativa; Solanum lycopersicon; planting time.

        · resumo em Português     · texto em Inglês     · pdf em Inglês