Abstract
The objective of this research was to evaluate the potential of the foliar fertilizer FertiG as an attenuator of Metribuzin toxicity in the carrot crop. Experiments were carried out in the 2014 and 2015 crops cycles. The treatments were arranged in a 4 x 3 factorial scheme, four times of foliar fertilizer application and three doses of Metribuzin (0, 288 and 576 g ha-1). In crop 1, the foliar fertilizer with the herbicide (288 g ha-1) increased the commercial yield 5 d before the Metribuzin application. The use of FertiG associated to Metribuzin reduced the production of forked carrots 5 d before application and without the foliar fertilizer. The tank mixture decreased the total discard as well as the total yield (576 g ha-1). In crop 2, the commercial yield increased 5 d before (576 g ha-1) and 5 d after (288 g ha-1) the application of Metribuzin when the leaf fertilizer was associated with the herbicide. The yield of the forked carrots decreased 5 d after the application of Metribuzin (288 g ha-1), as well as the total discard. Thus, when associated with Metribuzin (288 g ha-1), FertiG has the potential to attenuate the herbicide toxicity in carrots.
Publisher
Universidad Nacional de Colombia
Subject
Agronomy and Crop Science
Reference22 articles.
1. Agrofit - Sistema de Agrotóxicos Fitossanitário. In: Ministério da Agricultura, Pecuária e Abastecimento do Brasil. URL: URL: http://extranet.agricultura.gov.br/agrofit_cons/principal_agro-fit_cons (accessed 19 January 2018).
2. Ananievaa, E.A., K.N. Christova, and L.P. Popova. 2004. Exogenous treatment with Salicylic acid leads to increased antioxidant capacity in leaves of barley plants exposed to Paraquat. J. Plant Physiol. 161(3), 319-328. Doi: 10.1078/0176-1617-01022
3. Anzalone, A. 2010. Detoxificación de herbicidas en plantas. pp. 13-24. In: Congreso de la Sociedad Venezolana para el Combate de Malezas. Barquisimeto, Venezuela.
4. Bellinder, R.R., J.J. Kirkyland, and R.W. Wallace. 1997. Carrot (Daucus carota) and weed response to Linuron and Metribuzin applied at different crop stages. Weed Technol. 11(2), 235-240. Doi: 10.1017/S0890037X00042895
5. Bezerra, P.S.G., L.C. Grangeiro, M.Z. Negreiros, and J.F. Medeiros. 2007. Utilização de bioestimulante na produção de mudas de alface. Científica 35(1), 46-50.