GROWTH AND MICRONUTRIENT CONCENTRATION IN MAIZE PLANTS UNDER NICKEL AND LIME APPLICATIONS

  • TORRES G
  • CAMARGOS S
  • WEBER O
  • et al.
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Abstract

ABSTRACT The experiment was conducted in a greenhouse located at the Federal University of Mato Grosso, Cuiaba-MT, from March to May 2012. The objective was to assess the effects of different rates of nickel application with and without liming on maize growth and micronutrient levels. The study was a randomized block design in a 2 x 5 factorial arrangement with four replicates, for a total of 40 plots, including with and without liming and five rates of nickel application, on a clayey Red Yellow Latosol (Oxisol, USDA classification and Ferralsol, FAO classification). Both lime and nickel applications influenced plant growth, reducing plant development with increased nickel application without liming. It was also observed that both lime and nickel applications altered micronutrient levels in the maize plants, independent of which part of the plant was evaluated. Nickel played an antagonistic role with manganese and zinc and a synergistic role with copper and iron.RESUMO O experimento foi realizado em casa de vegetação na Universidade Federal de Mato Grosso, em Cuiabá/MT no período de março a maio de 2012 com o objetivo de avaliar o crescimento de plantas de milho e o teor de micronutrientes em doses de níquel com e sem calagem. O delineamento foi o de blocos casualizados, em um arranjo fatorial 2 x 5 com quatro repetições, totalizando 40 parcelas, sendo: com e sem calagem e cinco doses de níquel, em um Latossolo Vermelho Amarelo de textura argilosa. A calagem e a aplicação de níquel interferiram no crescimento das plantas de milho. Foi registrada a redução do desenvolvimento das plantas com o aumento das doses de níquel sem a calagem. Tanto a calagem quanto a aplicação de doses de níquel alteraram os teores de micronutrientes nas plantas de milho, independente da parte da planta avaliada. O níquel exerceu ação antagônica com manganês e zinco e sinérgica com o cobre e ferro.

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APA

TORRES, G. N., CAMARGOS, S. L., WEBER, O. L. D. S., MAAS, K. D. B., & SCARAMUZZA, W. L. M. P. (2016). GROWTH AND MICRONUTRIENT CONCENTRATION IN MAIZE PLANTS UNDER NICKEL AND LIME APPLICATIONS. Revista Caatinga, 29(4), 796–804. https://doi.org/10.1590/1983-21252016v29n403rc

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