Water management in the covered dark tobacco irrigated by hose in a ferrallitic soil.

Juan G. R., G. P. Guzmán, C. A. Díaz. Water management in the covered dark tobacco irrigated by hose in a ferrallitic soil.

Hydraulic Will. No. 69: 29-36. Havana, Cuba (1985) /./ “20 Years of hydraulic development in the Revolution” Pág.221 (1982).

The response of covered dark tobacco variety Corojo to 6 irrigation water management was studied under field conditions in soil ferrallitic red at the Experimental Station of Tobacco in San Antonio de los Baños,. It was found that the variants most economical of irrigation regime are two: those in which the water irrigation requirement decreases at 50 % in the final of second period and during the third vegetation period (603 thousand leaves/ha, 1968 kg. / ha, 7200 $ / ha and 1447 m3/ha) and the treatment that has an irrigation regime (88-82) – 82-80% of field capacity for phases: planting-10 leaves, 10 leaves – first harvest and the first harvest to the sixth harvest (586 thousand leaves / ha, 1945 Kg. /ha, 7500 $ / ha and 1771m3/ha).

Of the two treatments offered, we choose to use the treatment that reduce water irrigation during the harvest, as it allows a better response of the plant to kilograms of dry matter producida/m3 water (0.80), a saving of water a 15%, greater productivity irrigator in the final stage of the crop and does not affect the quality of tobacco.

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