Facultad de Ciencias Básicas
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Browsing Facultad de Ciencias Básicas by Subject "Absorción radicular"
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Item Fabricación de tres fertilizantes específicos para los suelos colombianos(Universidad Santiago de Cali, 2023) Sánchez Manrique, Valeria; Gutiérrez Moreno, Nini Johanna (Directora); Arizabaleta Ibarbo, Cesar Alberto (Director)In this project, three liquid fertilizers for foliar application with specific nutrients were manufactured according to the nutritional demand of the most representative Valle del Cauca soils and crops. These fertilizers met all the requirements demanded by the Colombian Agricultural Institute ICA. During the development of the project, in addition to the synthesis of the liquid fertilizers, it was necessary to carry out the analytical verifications of ten nutrients present in the different liquid fertilizers of interest, (manganese, iron, copper, magnesium, calcium, boron, zinc, molybdenum, potassium and phosphorus) by means of atomic absorption spectrophotometry (AA) for metals and molecular spectrophotometry (MS) for phosphorus and boron. The data obtained from the verifications allowed us to verify that the methodology selected to manufacture the fertilizers was adequate, since repetitive and reproducible values were obtained for each of the minerals evaluated. Basic determinations were made to the products such as pH, density and surface tension where it was possible to verify that these parameters are within the values established for foliar application liquid fertilizers and the stability studies demonstrated conservation of the physical and chemical characteristics for 15 months. up to the time of writing this document. As an additional input for the elaboration of this project, it was the construction of a dynamic consultation table to have an estimate of the characterization of the soils and based on this information to be able to carry out more adequate fertilization programs, avoiding incorrect applications of the different agrochemicals.