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Biotecnología en el Sector Agropecuario y Agroindustrial

Print version ISSN 1692-3561

Abstract

CISNEROS-R, CARLOS A; FRANCO, JAIME MARTÍN; REALPE-FERNANDEZ, MARCELA  and  FUENMAYOR, JUAN CARLOS. INFLUENCE OF MICROORGANISMS IN PHOSPHORUS AVAILABILITY OF COFFEE SEEDLINGS (Coffea arabica). Rev.Bio.Agro [online]. 2017, vol.15, n.1, pp.19-26. ISSN 1692-3561.  https://doi.org/10.18684/BSAA(15)11-18.

Most soils in Colombia shown available phosphorus deficiency, which is a fundamental element for the plants development. In order of overcome this natural difficulty and mitigate the demand for phosphorus in the soils, phosphate solubilizing microorganisms (PSM) are added. In this research, were studied the microorganisms Kocuria sp., B. subtilis, S. and P. diversispora ochrochloron and the effect they have on the availability of phosphorus in the development of coffee seedlings under greenhouse conditions, with 23 treatments and 10 replications in statistical design, completely randomized. The experiments were carried out in Typic Melanudand soil with decomposed coffee pulp and presence or absence of microorganisms (treatments 1-11) and adding phosphate rock (12 to 22 treatments). Typic Melanudand was used as a witness in the treatment 23, fertilized with diammonium phosphate. The results showed that the application of decomposed coffee pulp with and without phosphate rock and microorganisms, favored the availability of phosphorus, reflected in the growth of coffee seedlings, in the chemical analysis of the soil and the response variables match and leaf area. There was an inverse relationship between polyphenols and phosphorus in soil and plant.

Keywords : Phosphate solubilizers; Polyphenols; Soil; Foliar area; Available phosphorus.

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