Cecílio Filho Arthur B, Rezende Bráulio L A, Barbosa José C, Grangeiro Leilson C
Departamento de Produção Vegetal, Universidade Estadual Paulista, Jaboticabal, SP, Brasil.
An Acad Bras Cienc. 2011 Sep;83(3):1109-19. doi: 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.
在巴西圣保罗州立大学进行了四项实验，目的是确定在温室条件下番茄与生菜间作的农艺可行性。所研究的间作系统是通过在番茄移栽后0、10、20和30天移栽生菜，以及在生菜移栽后0、10、20和30天移栽番茄来建立的。对间作的番茄和生菜在两个季节进行了评估，并与它们的单作进行了比较。实验设计为随机完全区组设计，有九种处理。番茄果实的产量和分级不受与生菜间作的影响，但与番茄间作时生菜产量会降低。生菜移栽延迟的时间越长，其产量下降幅度越大。种植季节对间作相对于单作的农艺优势程度有影响。在第一个种植季节，在番茄移栽前30天至移栽后20天期间移栽生菜建立的间作，土地利用效率（LUE）指数为1.63至2.22。在第二个时期，在番茄移栽前30天内移栽生菜建立的间作，LUE指数为1.57至2.05。
