Research article


Sandra Elizabeth López Sampedro, Miguel Angel Osorio Rivera, William Estuardo Carrillo Barahona, José Hernan Negrete Costales, Jennifer Alexandra Peñaranda Jara

Online First: November 08, 2022

The investigation try to evaluate the effect of blood meal on the soil of a lettuce crop, a completely randomized design was used with four treatments and three repetitions, with doses of 0%, 5%, 10 % and 15%. These values were used in the soil prior to transplanting the crespa-type lettuce seeds. For the soil analysis, a sample of each treatment was taken as a reference before and after the investigation was completed. To collect data on the variables height, number of leaves and coloration, they were measured 25 and 50 days after seed transplant. The results through the statistical analysis of variance and Tukey 5% test, determine that there are significant differences in height at 25 days, for T1, in terms of the number of leaves, T0 presented better values with respect to T1, T2 and T3. For the soil, T3 shows an increase in electric conductivity, Nitrogen and iron, and the pH shows a reduction in its values 4.97 and 4.83 (acid). Concluding that when applying the blood meal in the soil as a nutritional component in a 5% application, favorable results are achieved during the first 25 days, maintaining small differences in their values until the 50th day corresponding to the harvest.


blood meal, fertilizer, transplant, lettuce, soil.