Agronomic efficiency of intercropping tomato and lettuce

Anais da Academia Brasileira de Ciências

Arthur B. Cecílio Filho²  Bráulio L.a. Rezende¹  José C. Barbosa¹  Leilson C. Grangeiro¹ 

[1] ,Universidade Estadual Paulista Departamento de Produção Vegetal Jaboticabal SP ,Brasil

关键词: cropping systems;    greenhouse;    Lactuca sativa;    Solanum lycopersicon;    planting time;    sistemas de cultivo;    cultivo protegido;    Lactuca sativa;    Solanum lycopersicon;    época de plantio;   

DOI  :  10.1590/S0001-37652011000300029

来源: SciELO

【 摘 要 】

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.

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