Evaluación de dosis y época de aplicación de extracto de azolla (Anabaena azollae) en el cultivo de brócoli (Brassica oleracea Var. italica)

Abstract

This research study was conducted in the Anchilivi neighborhood, located in the Salcedo canton, Cotopaxi province. The objective was to evaluate the dose and timing of application of Azolla extract (A. azollae) in broccoli cultivation (Brassica oleracea var. italica) in order to analyze its effect on different treatments. The study factors evaluated were the extract dose: 5 cm³/L, 10 cm³/L, and 15 cm³/L, and the timing of application; at 15 days (A1), at 15 and 30 days (A2), and at 15, 30, and 45 days (A3) after transplanting. The most effective treatment with the most favorable results was D3A3 in various response variables, which showed head weight (452.67 g), plant height (37.20 cm), root volume (32.73 cm3), head diameter (12.00 cm), and yield (18106.67 kg/ha). Similarly, it was observed that there were no significant variations in the number of leaves in any treatment. These results are attributed to the benefits and different metabolic compounds present in the extracts, which act favorably in the production of broccoli (Brassica oleracea var. italica) cultivation, as reflected in this research.