Effect of organic fertilizer sources on the morphometry and yield of two carrot varieties in Pomabamba, Peru

Abstract

Objective: To evaluate the response of two carrot varieties to the application of organic sources under conditions of the Andean region of Ancash. Methodology: The design of complete randomized blocks was implemented with an arrangement of divided plots, determining the varieties as plots: Chantenay Red Core and Chantenay Imperial; and as subplots to the organic sources: control, island guano, guinea pig manure and the mixture of both in equal proportions. There were eight treatments arranged in four blocks. The variables evaluated were plant height (cm), the -1 upper and lower diameter of the root (cm), root length (cm) and yield (t ha ). The data obtained were subjected to analysis of variance by the F test, after evaluation of normality and homogeneity of variances. For the comparison of means, Duncan's test was applied at 5%. The Sisvar statistical program was used. Results: It was observed that there was only an interaction between variety and organic source for the yield variable; Thus, the Red Core variety obtained higher yields than the Imperial variety in each of the organic sources evaluated; and concerning the analysis within the variety, it was found that in the Red Core variety, the application of island guano promoted greater yield compared to the other sources. Conclusion: It is concluded that the Chantenay Red Core variety is superior to the Imperial, and those organic sources have favoured increased yield.