Determinación de la calidad agrícola de los suelos en la zona del Proyecto Propósito Múltiple Chone fase dos

Abstract

The objective of this investigation was to evaluate the agricultural quality of the soils in the irrigation zone of the PPMCH in the province of Manabi, using data from soils obtained in 2014 and 2016. From the soils, specific and bulk density, humidity and porosity were obtained. Using soil-water extracts with saturation, 1:5 and 1:10 concentrations, pH, EC, soluble ions, evaporated and calcined solid waste were achieved. With geoestatistical analysis using Kriging and IDW interpolation methods and with a statistical study of the principal components, maps of spatial distribution using the best interpolator were generated. The results stablish that the 72.72% of the samples are clay soils, 22.73% are loamy soils and 4.55% are organic-volcanic soils. The pH values are between 6.56 and 7.63, with EC values between 0.08 and 0.66 dS/m, showing that the soils are poor, with low salinity, with neutral and lightly alkaline pH, with infiltration problems. These information, indicate that the soils will need proper handling to avoid environmental problems as a result of excessive fertilizer use, although the soils don’t have sodicity problems and have low salinity. The ionic composition stablishes that the predominant are Ca2, Na+ and HCO3+.