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Ecología Aplicada
versión impresa ISSN 1726-2216
Resumen
SANTILLANA VILLANUEVA, Nery. Biofertilizers production using Pseudomonas sp. Ecol. apl. [online]. 2006, vol.5, n.1-2, pp.87-91. ISSN 1726-2216.
With the objective of producing biofertilizers using 3 Pseudomonas sp. strains, three experiments were carried out: first, to find appropriate culture means for bacteria multiplication, second to determine Pseudomonas sp. strain survival in the biofertilizer and third, to determine the efficient dose of biofertilizer application in beans (Phaseolus vulgaris L.), corns (Zea mays), potatoes (Solanum tuberosum L.) and tomatoes (Lycopersicon esculentum Mill) under greenhouse conditions. When evaluating the results, it was determined that the culture used for the Pseudomonas sp. multiplication, could be replaced by another lower cost culture. Pseudomonas sp. strain viability in the biofertilizer was similar during 3 months of conservation, so its use can be guaranteed until that date. Non significant differences were found between the biofertilizer applied doses to beans, corns, potatoes and tomatoes. Shoots and roots dry matter of beans and corn plants inoculated with Pseudomonas sp. strains differed significantly compared to control plants. Potato and tomato plants inoculated with Pseudomonas sp. did not differ significantly compared to non-inoculated control plants.
Palabras clave : Pseudomonas sp; dosis de aplicación; Biofertilizer; Pseudomonas sp.; application dose.