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Ciencia y Tecnología Agropecuaria
versão impressa ISSN 0122-8706
Resumo
RESTREPO-CORREA, Sara Paulina; PINEDA-MENESES, Eliana Carolina e RIOS-OSORIO, Leonardo Alberto. Mechanisms of action of fungi AND bacteria used as biofertilizers in agricultural soils: a systematic review. Corpoica cienc. tecnol. agropecu. [online]. 2017, vol.18, n.2, pp.335-351. ISSN 0122-8706. https://doi.org/10.21930/rcta.vol18_num2_art:635.
Phosphorus, nitrogen, iron AND potassium are some compounds necessary for plant growth AND development; chemical fertilizers used to increase concentration significantly affect the environment AND soil ecosystems. According to the scientific literature, microorganisms with biofertilizer potential have demonstrated various mechanisms of action to solubilize these compounds AND thus meet the requirements of plants. This systematic review collects scientific information that describes the mechanisms of action of microbial fertilizers in agricultural soils, published between 2004 AND 2014, in three different
databases; ScienceDirect, SpringerLink AND Scopus, using the search path (biofertilizer) AND (bacteria or fungi) AND (effect or action or mechanism). After using different inclusion and exclusion criteria, the search displayed a total of 63 original articles, including six unindexed documents. As a result of the systematic review, it indicates that the production of various organic acids allows soil acidification, facilitating absorption of elements. It was also observed that solubilization of P is the most described mechanism, by obtaining a solubilizing of 726.5 mg/L of P due to P. pseudoalcaligenes.
Palavras-chave : Nutrient uptake; Acidification; Organic acids; Biofertilizers.