Evaluación de alternativas tecnológicas para el manejo de malezas en el cultivo de amaranto (Amaranthus caudatus L.) variedad INIAP alegría, en dos agroecosistemas de la provincia del Azuay

Abstract

Weed management alternatives were evaluated in the Amaranth (Amaranthus caudatus L.) variety INIAP Alegría variety, in two agroecosystems in the Azuay province. Weeds present in the areas of the experiment were identified, the most effective treatment for weed management was determined among the treatments of padding, manual weeding, application of paraquat dichloride, Clomazone and associated crops, then they were economically analyzed.The test was established in randomized complete blocks (DBCA), performing non-parametric Kruskal-Wallis tests with multiple comparisons between treatments. The broadleaf weeds had a higher incidence both in the INIAP locality (83.49%) and in the S. Bolívar locality (60.32%) with respect to the narrow-leaf ones (16.51% and 39.68 %), it was classified according to the family they belong to, having more presence of the Asteraceae and Poaceae families (31.5% and 21.05%) in both locations. As for the effectiveness for weed control; The Acolchado 10 treatment achieved lower weed coverage (21.67%), greater height (229.00cm) and at the same time higher yield (kg / ha = 3299.9) in the INIAP locality. On the other hand, Simón Bolívar, the Acolchado 10 treatment reached lower weed coverage (23.67%) and the highest yield (kg / ha = 2858.80), the acolchado 20 treatment reached the highest height (158.57 cm). While for TRM values, they indicate that for every dollar that the producer invests to switch to Acolchado 10 technology, he expects to btain an additional $ 3.51 for the INIAP location and an additional $ 2.54 in the Simón Bolívar location.