Evaluación del efecto de la aplicación de compost y biol en el cultivo de cebolla blanca (Allium fistulosum L.) en la provincia de Cotopaxi.

Abstract

The objective of this research was to evaluate the effect of the application of compost and biol on the white onion (Allium fistulosum L.) crop in Cotopaxi province. It was applied a randomized complete block experimental design with twelve treatments and three replications. The treatments used were compost, biol, and calcium nitrate, at different doses of 50, 100, and 150 kg N/ha. It was evaluated the number of stems per plant, stem weight, and yield per hectare. For this variable was used the LSD test at 10% and the Shapiro Wilks test to determine the normality of the residuals. It was carried out the economic and functional analysis of the treatments by the agricultural optimum and the benefit/cost analysis. For the substitution value of fertilizers at different nitrogen sources was presented at compost with 41.39% and Biol with 28.59% efficiency. About the agricultural optimum, the calcium nitrate application with a dose of 471.07 kg N has obtained a yield of 17.6 t/ha while that compost with 2079 kg N and for the biol with 253.93 kg N, the yield obtained was 35.48 and 6.8 t/ha, respectively. It was concluded that calcium nitrate was the fertilizer that achieved the highest absorption efficiency with 60.69%, compost with 45.11%, and biol with 30.94%. It is recommended to calibrate the nitrogen dosage using different mineral nitrogen sources to obtain better results.