BROCCOLI PRODUCTION BASED ON GENOTYPE AND NITROGEN DOSE

Abstract

Broccoli (Brassica oleracea var. Italica) is a vegetable that provides vitamins and essential elements to the human diet, as well as antioxidant compounds that improve health. This crop may be alternative in avocado (Persea americana) producing regions, where weather may be suitable for broccoli. However, its productive behavior, the most appropriate varieties and doses of nitrogen fertilization are unknown. The objective of this study was to determine the productive response and economic profitability of Monte Carlo and Green Magic broccoli varieties with the doses of 0, 60 and 120 kg N ha^-1 (N0, N60 and N120, respectively) in Uruapan, Michoacán, in 2016. The trial was established in open field and irrigated field conditions. A randomized block design with four replications was used. It was found that Green Magic was more productive and showed greater response to nitrogen fertilization (P ≤ 0.05) than Monte Carlo. Green Magic with N120 achieved the highest yield, 14.1 t ha^-1 and the highest profitability, $ 35,413.20 MXN. Monte Carlo with N0 and N60, as well as Green Magic with N0 were not economically profitable because of they had the highest economical losses, $ -48,714.2 MXN. Therefore, the cultivar Green Magic fertilized with N120 is an option to be grown in Uruapan, Michoacan.