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2 X 3 = 8 X 3 = 9 X 4 = 2 X 4 = 6 X 9 =
3 X 9 = 4 X 6 = 8 X 9 = 3 X 7 = 3 X 1 =
5 X 2 = 6 X 3= 9 X 9 = 7 X 5 = 8 X 1 =
8 X 9 = 7 X 6 = 8 X 6 = 9 X 9 = 7 X 3 =
9 X 4 = 9 X 4 = 9 X 5 =5 X 8 = 3 X 8 =
7 X 5 = 6 X 4 = 2 X 6= 7 X 5 = 4 x 4 =
9 X 5 = 5 x 6 = 9 x 3 = 4 x 8 = 2 x 6 =
1 X 6 = 6 x 4 = 6 x 5 = 3 x 6 = 9 x 6 =
4 X 7 = 8 x 8 = 0 x 6 = 9 x 7 = 8 x 0 =
6 X 8 = 6 x 7= 7 x 7 = 4 x 4 = 3 x 3 =
5 X 7 = 3 x 5 = 9 x 9 = 5 x 5 = 5 x 0 =
2 X 9 = 8 X 6 = 6 X 8 = 3 X 4 = 9 X 8 =
8 X 7 = 4 X 8 = 8 X 2 = 6 X 3 = 9X 4 =
9 X 6 = 0 X 9 = 7 X 9 = 2 X 7 = 6 X 6 =
7X 7 = 7 x 2 = 1 x 5 = 2 x 2 = 6 x 4 =
3 X 8 = 8 x 6 = 9 x 0 = 7 x 3 = 9 x 8 =
5 X 8 = 6 x 6 = 8 x 6 = 2 x 8 = 6 x 2 =
6 X 6 = 9 x 7 = 4 x 9 = 7 x 3 = 4 x 8 =
7 X 8 = 7 x 7 = 0 x 6 = 8 x2 = 5 x 6 =
4 X 6 = 1 x 8 = 3 x 4 = 2 x 7 = 9 x 1 =
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Agro sur

ISSN 0304-8802 versión impresa | |
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  Agro sur v.25 n.1 Valdivia jun. 1997 |
|EFECTO DE LA SOLARIZACION Y FUMIGACION EN EL CONTROL DE Fusarium oxysporum Y DE MALEZAS, EN SUELOS DE INVERNADEROS FRÍOS MONOCULTIVADOS CON TOMATES 1Jaime R. Montealegre2, Mario Silva y Verónica Díaz3
Universidad de Chile
Facultad de Ciencias Agrarias y Forestales
2Departamento de Sanidad Vegetal,
3Departamento de Producción Agrícola
Casilla 1004, Santiago, Chile1 Investigación financiadamediante el Proyecto. FONDECYT 1940255-94, parte de la Memoria de Título de ingeniero Agrónomo del segundo autor.
Recepción de originales: Febrero 25, de 1996.ABSTRACTEffect of soil solarization and fumigation in the control of Fusarium oxysporum and weeds in a greenhouse soil monocropped with tomatoes.Key words: Solar heating, Soil fumigation, Fusarium oxysporum, Control, Greenhouse.Soilsolarization and methyl bromide fumigation were tested to control natural inoculum of Fusarium oxysporum Sch. in a greenhouse soil monocropped with tomatoes. (10; 20 and 30 cm). Their effect on weed control was also tested. The experiments were conducted in a plastic greenhouse in the Olmué locality, CHILE. Soil solarization was carried out for 40 days from January to February, 1995, by mulching the soilwith a 0.04 mm, clear, polyethylene film and was compared with both an unmulched soil treatment and a Metabrome 980 fumigation (98% methyl bromide and 2% chloropicrine) at a rate 68 g a.i./m2. The solarization effect on weeds was meassured based on biomass production. Soil temperature and moisture were recorded at the depths of 10; 20 and 30 cm. The rate of control of F. oxysporum in thesolarized soil was 95.5; 88.2 and 85.7% at 10;20 and 30cm of soil depth respectively, while Metabrome 980, was 95.5;94.1 and 100% at the same depths. Weed population was kept down even 2 months after the solarization treatment. The máximum temperatures reached in the solarized soil were 45.2; 35.9 and 32,8 °C at 10; 20 and 30 cm depths, respectively.RESUMENSe investigó el efecto de la solarización y una...