Parámetros físicos y químicos para la determinación de la calidad de los suelos en la microcuenca Jun-Jun

Abstract

The present research work was carried out with the objective of evaluating the physical and chemical parameters to determine the quality of the soils in the Jun-Jun Microbasin through a Laboratory Analysis carried out in the FCAGR, the most representative measured parameters were the P , K, Zn, Mn, Mg and Ca and percentages of sand, silt, clay and MO, in different zones and altitudes (Z1:> 2800 msnm, Z2: 2800-2900 msnm, Z3:> 2900 msnm); and zones with vegetal cover and without cover. Samples were taken in the Microbasin located in the cantons of Mocha, Quero and Cevallos and three its evaluation a randomized block design (DBCA) with three replications was used, the analysis of variance (ADEVA) was developed, according to the experimental design and the Duncan significance tests were cporcentajearried out at percentage, in order to differentiate between treatments. The results obtained were that the soils with vegetal cover presented a high quantity of physical parameters as in the Z3C1 (> 2900 msnm, grass cover of grass) as the silt with apercentage of 59,33 and the M.O. with a value of 3.72 percent and in the chemicals in the same zone the P with 15.33 ppm and the K with 0.67 meq / 100g and soils without vegetation cover in the Z2C2 (2800 - 2900 msnm., without cover vegetable) such as P with a value of 7.00ppm and K with a value of 0.20 meq / 100g, confirming that soils that have a vegetation cover have a higher quality than those that do not. causing a high erosion in the soils and a low quality of their crops due to anthropogenic activities caused by the same man, on the other hand in the soils with vegetal cover there was an optimum pH with a range of 5 to 7,4. there is an availability of nutrients and a high amount of organic matter helping to improve it