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Revista mexicana de ciencias agrícolas

versión impresa ISSN 2007-0934

Resumen

DIAZ FRANCO, Arturo et al. Plant traits, soil and productivity between fertilized sorghum and inoculated with arbuscular mycorrhizal. Rev. Mex. Cienc. Agríc [online]. 2014, vol.5, n.3, pp.379-390. ISSN 2007-0934.

Inoculation with mycorrhizal fungi is an alternative to improve the biological balance of the soil and reduce the use of inorganic fertilizer (IF). For five consecutive years (2002-2006), some characteristics of soil and plant sorghum grown with mycorrhizal fungi inoculation Rhizofagus intraradices (RI) and fertilized with 60-2000 control (FI) were determined. Grain yield was similar between treatments during the five years, although the inoculated RI exceeded 17.7 % ($ 216.00 ha-1) benefit-cost relative to the FI relationship. Chlorophyll content, plant height, biomass, pH, organic matter, electrical conductivity, P and K showed no statistical significance between both treatments. The soil N with FI exceeded 6. 7 mg kg-1 soil inoculation with RI. In contrast, root biomass, the number of spores of arbuscular mycorrhizal fungi in soil and soil CO2 emission increased with mycorrhizae. The impact of R. intraradices showed higher profitability of sorghum production (savings of $ 926.00 ha-1) and biological activity in the soil.

Palabras llave : Sorghum bicolor; Glomus intraradices; Rhizofagus intraradices; soil fertility; nutrition.

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