Browsing by Author "Juncal Yauri, Dennis Alexander"

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    Evaluación de trichoderma spp. nativo y comercial a diferentes concentraciones en las propiedades químicas del suelo, cultivo de lechuga (lactuca sativa l.) variedad batavia; en la terraza del campus Salache - Cotopaxi, 2023-2024”.
    (Ecuador : Latacunga : Universidad Técnica de Cotopaxi (UTC), 2024-08) Juncal Yauri, Dennis Alexander; Castillo De La Guerra, Clever Gilberto
    The present research project was carried out on the terrace of the Salache campus of the Technical University of Cotopaxi. With the purpose of evaluating the effect of two strains of Trichoderma spp. (native and commercial) at different concentrations in the chemical properties of the soil and identify the best concentration in the behavior of the lettuce crop (Lactuca sativa L.) batavia variety. For the laboratory replication work of Trichoderma spp, the methodology of (Troya 2014) and for the determination of concentrations (Velez 1997). The design used was a completely randomized block design (DBCA); with six treatments plus a control with three repetitions, the factors under study were Trichoderma spp, (native and commercial) and three concentrations 10-6,10-8,10-10; resulting in 21 experimental units. The variables to be evaluated were the chemical properties of the soil (macronutrients and micronutrients); plant height (cm); number of leaves; leaf width (cm); leaf length (cm) and harvest yield (kg). InfoStat software was used for statistical analysis. The results obtained for the variable chemical properties of the soil: pH of 9.56 at the beginning and at the end of the application of Trichoderma spp, decreases to 9.47 being an alkaline soil, Organic Matter rose from 0.29 to 0.70 % being considered low levels and the other elements behaved stable except for nitrogen, which dropped from 64 ppm to 28.94 ppm as a result of crop consumption. The results obtained in the plant response, the T6 treatment (Trichoderma commercial concentration 10-10) gave better results in; The variable plant height with 7.86 cm; sheet number with 11.03; for the variable width of leaves with 6.68 cm; for the variable leaf length with 6.48 cm and for the variable yield at harvest with 5.16 kg/m2. It is established that the best concentration of commercial Trichoderma was the concentration 10-10 because it is a biostimulant that helps the assimilation of nutrients.