Efeitos da fertilização foliar com manganês em soja transgênica cultivada no inverno manejada com glifosato
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Universidade de Santiago de Compostela. Servizo de Publicacións e Intercambio Científico
Abstract
O uso de glifosato pode ocasionar deficiência
nutricional na soja RR, sendo o fertilizante com Mn utilizado
para corrigir potenciais danos provocados pelo herbicida.
Este trabalho tem como objetivo avaliar a disponibilidade do
micronutriente Mn, aplicado via foliar, na cultura da soja RR
em safra de inverno, para seus teores foliares e
componentes de produção e produtividade, em resposta a
diferentes doses do nutriente e estádios fenológicos de
aplicação, com manejo de glifosato. O delineamento
experimental usado foi em blocos casualizados e esquema
fatorial (2x5) com 3 repetições, sendo 2 estádios de
aplicação do Mn (V3 e R2) e 5 doses do nutriente (0,00;
22,35; 44,70; 67,05 e 89,40 g ha-1 de Mn). Os resultados
indicaram que a aplicação de fertilizante comercial com Mn,
na dose de 89,40 g ha-1 no estádio V3, contribuiu para a
elevação dos teores foliares de Mg, já a aplicação no
estádio R2 favoreceu a elevação do teor foliar de Mn e não
houve contribuição dos tratamentos para o aumento dos
componentes de produção e produtividade da soja RR de
inverno
The use of glyphosate can cause nutritional deficiency in RR soybean, being the fertilizer with Mn used to correct potential damages caused by this herbicide. This work aimed to evaluate the availability of the micronutrient Mn, by foliar application, in RR soybean culture in winter crop, for the foliar concentrations and the yield components and productivity, in response to different doses of the nutrient and phenology stages of application, with glyphosate management. The experimental design used was in randomized blocks in factorial scheme (2X5) with 3 replications, being 2 application stages of Mn (V3 and R2) and 5 doses of the micronutrient (0.00; 22.35; 44.70; 67.05; 89.40 g ha-1 of Mn). The results indicate that the application of the commercial fertilizer with Mn, in the dose of 89.40 g ha-1 in V3 stage, contributed for the elevation of the foliar concentrations of Mg, while the application in the R2 stage provided the elevation of Mn foliar concentration, but there wasn’t contribution of the treatments for the increase of the yield components and productivity of the RR soybean in winter crop
The use of glyphosate can cause nutritional deficiency in RR soybean, being the fertilizer with Mn used to correct potential damages caused by this herbicide. This work aimed to evaluate the availability of the micronutrient Mn, by foliar application, in RR soybean culture in winter crop, for the foliar concentrations and the yield components and productivity, in response to different doses of the nutrient and phenology stages of application, with glyphosate management. The experimental design used was in randomized blocks in factorial scheme (2X5) with 3 replications, being 2 application stages of Mn (V3 and R2) and 5 doses of the micronutrient (0.00; 22.35; 44.70; 67.05; 89.40 g ha-1 of Mn). The results indicate that the application of the commercial fertilizer with Mn, in the dose of 89.40 g ha-1 in V3 stage, contributed for the elevation of the foliar concentrations of Mg, while the application in the R2 stage provided the elevation of Mn foliar concentration, but there wasn’t contribution of the treatments for the increase of the yield components and productivity of the RR soybean in winter crop
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Nava, I., Gonçalves Jr, A., Schwantes, D., Strey, L., Roweder, F., & de Sousa, R. (2012). Efeitos da fertilização foliar com manganês em soja transgênica cultivada no inverno manejada com glifosato. Recursos Rurais, 8, pp. 5-11. Recuperado de http://www.usc.es/revistas/index.php/rr/article/view/786/763
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http://www.usc.es/revistas/index.php/rr/article/view/786Sponsors
À Fundação Araucária de Apoio ao Desenvolvimento Científico e Tecnológico do Paraná, Brasil
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© IBADER- Universidade de Santiago de Compostela 2012. Este artigo está baixo unha licenza Creative Commons Recoñecemento-NonComercial-Compartir igual (https://creativecommons.org/licenses/by-nc-sa/3.0/es/)



