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Cultivos Tropicales

versión impresa ISSN 0258-5936versión On-line ISSN 1819-4087

Resumen

LEON GONZALEZ, Yarilis et al. Economic feasibility of applying microbial inoculants to dark tobacco crop. cultrop [online]. 2016, vol.37, n.1, pp.28-33. ISSN 0258-5936.

During 2010/2011 and 2011/2012 in tobacco crop seasons, a research was carried out at the Tobacco Experimental Station of San Juan y Martínez, Pinar del Río, Cuba, with the objective of determining the economic feasibility of two microbial inoculant methods applied to dark tobacco crop in the sun. A random block was designed with 19 treatments and four repetitions. Different mineral fertilizer rates were studied combined with two microbial inoculants (Azotobacter chroococcum and Bacillus megatherium var. phosphaticum). Two variants were employed: an inoculation at sowing time of the seedbeds and another which included the initial inoculation plus a reinoculation at transplanting time. Better results were achieved by reinoculation and mineral fertilizer reduction than by inoculation method. The economic feasibility of A. chroococcum + B. megatherium var. phosphaticum reinoculation plus 75 % of total nitrogen and phosphorus rates was proved in dark tobacco cultivated at the sun

Palabras clave : Azotobacter; Bacillus megatherium; production costs.

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