Efecto de las características químicas de dos suelos ácidos a la aplicación de tres enmiendas edáficas

Abstract

Acidity is one of the main forms of degradation present in soils and one of the factors that affects crop yields, therefore, in the face of this problem, it is necessary to apply corrective measures of natural or industrial origin, which allow soils to be recovered. acids. The objective of this research was to evaluate the effect of three edaphic amendments (Ca Carbonate, Ash and Biochar of plant origin) on chemical characteristics such as pH, electrical conductivity (EC), organic carbon (CO) and soil organic matter (MOS), from two locations in the Province of El Oro in Ecuador. 297 samples were studied for each locality (L1 and L2) with a completely randomized design (DCA) applying the ANOVA and a Student test (LCD), three types of amendments were used, adding eleven different doses of each amendment with three repetitions per each dose, and samples were evaluated at three incubation times. The analyzes indicated that the use of agricultural lime improved the pH levels in the soils. It was also evidenced that adding ash increased the EC of the soils. The content of CO and OM in the (L1) increased when using agricultural lime and in the same way in the (L2) it was presented in greater amounts when adding Biochar to the soils studied. These materials are an excellent alternative when used as soil amendments, since they correct the chemical properties of the soil, making them suitable for production and improving crop yields.