Open AccessDissolution of Monte Fresco phosphate rock and their effects on phosphorus fractionation in Venezuelan soils
Author(s) -
Danilo LópezHernández
Publication year - 2022
Publication title -
revista de la facultad de agronomía
Language(s) - English
Resource type - Journals
eISSN - 2477-9407
pISSN - 0378-7818
DOI - 10.47280/revfacagron(luz).v39.n1.16
Subject(s) - dissolution , soil water , phosphorus , fractionation , chemistry , phosphorite , environmental chemistry , mineralogy , phosphate , geology , soil science , chromatography , organic chemistry
Incubation tests analyzed the reaction of Monte Fresco phosphoric rock (PR) with nine Venezuelan soils representative of different agro-ecological conditions, and of contrasting physical-chemical and mineralogical characteristics linked to the RF dissolution process. The soils presented different capacities to dissolve the PR; response, generally associated with its intrinsic characteristics. The highest PR dissolution value (ΔP) was found in the soil Iguana (50 mgP.kg-1soil), soil with appropriate properties to induce this process: acidic pH and low content of total and available P, followed with intermediate values (7-22 mg P.