SciELO - Scientific Electronic Library Online

 
vol.34 número3LODOS RESIDUALES DE NEJAYOTE COMO SUSTRATOS PARA LA GERMINACIÓN DE SEMILLAS DE MAÍZ AZUL CRIOLLOREMOCIÓN DE TOLUENO EN DOS SUELOS CONTRASTANTES, UN SUELO AGRÍCOLA Y UN SUELO ALCALINO índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • No hay artículos similaresSimilares en SciELO

Compartir


Revista internacional de contaminación ambiental

versión impresa ISSN 0188-4999

Resumen

DIAZ-FRANCO, Arturo et al. MICROBIAL STRAINS WITH POTENTIAL TO REPLACE THE INORGANIC FERTILIZATION OF SWEET SORGHUM ( Sorghum bicolor). Rev. Int. Contam. Ambient [online]. 2018, vol.34, n.3, pp.405-416. ISSN 0188-4999.  http://dx.doi.org/10.20937/rica.2018.34.03.04.

Sweet sorghum (Sorghum bicolor) is a crop destined for the production of refined sugar, alcohol, and biofuels, among others. Inorganic fertilization, although necessary, represents a practice of high economic and environmental cost. Arbuscular mycorrhizal fungi and plant growth promoting bacteria used as biofertilizers have the capacity to reduce or even replace inorganic fertilization. The objective of the present work was to evaluate the biofertilizer potential of microbial strains by greenhouse tests with variety Dale, and productivity in the field with varieties. Dale and Cañero, compared to conventional fertilization. A favorable symbiotic response of microbial strains was observed in greenhouse, field and in both varieties of sweet sorghum. In greenhouse, in general, the microbial strains promoted better plant characteristics (chlorophyll index, height, stem diameter and sugars content) and biomass (stem, leaves, inflorescence, aerial and radicle), compared to uninoculated plants. At field scale the response of varieties to the effect of microbial strains was competitive in relation to conventional fertilization. Stem biomass and sugar content, main productivity variables of sweet sorghum, were similar between microbial strains and conventional inorganic fertilization. The results obtained showed that the strains evaluated have the potential to substitute inorganic fertilization.

Palabras llave : biofertilization; plant characteristics; productivity; arbuscular mycorrhizal fungi; plant growth promoting bacteria; sweet sorghum; sustainability.

        · resumen en Español     · texto en Español     · Español ( pdf )