Sistema radicular de seis gramíneas irrigadas em diferentes adubações nitrogenadas e manejos - DOI: 10.4025/actasciagron.v32i2.1020

Fernando França da Cunha; Márcio Mota Ramos; Carlos Augusto Brasileiro de Alencar; Carlos Eugênio Martins; Antônio Carlos Cóser; Rubens Alves de Oliveira

doi:10.4025/actasciagron.v32i2.1020

Root system of six irrigated grasses under different nitrogen fertilization and management - DOI: 10.4025/actasciagron.v32i2.1020

Fernando França da Cunha Universidade Federal de Viçosa
Márcio Mota Ramos Universidade Federal de Viçosa
Carlos Augusto Brasileiro de Alencar Universidade Vale do Rio Doce
Carlos Eugênio Martins Empresa Brasileira de Pesquisa Agropecuária
Antônio Carlos Cóser Empresa Brasileira de Pesquisa Agropecuária
Rubens Alves de Oliveira Universidade Federal de Viçosa

DOI: https://doi.org/10.4025/actasciagron.v32i2.1020

Keywords: root depth, root density, B. brizantha, P. maximum, P. purpureum, C. nlemfuensis

Abstract

This study aimed to evaluate the root density and root depth of six irrigated grasses under different nitrogen fertilization and management. The experiment was analyzed in a split-split plot design. Two management (grazed and cut) constituted the plots, six grasses (Estrela, Marandu, Mombaça, Pioneiro, Tanzânia and Xaraes) the split-plots, and four nitrogen fertilization (100, 300, 500 and 700 kg ha^-1 year^-1) the split-split-plots. The root density was obtained by the medium density of all the samples and root depth was based on the first 80% root weight. Effects of the grasses, nitrogen fertilization and management were observed in the appraised characteristics. Marandu, followed by Xaraes, presented larger root density. In general, Marandu and Pioneiro provided larger and smaller root depth, respectively. The cut provided larger root density, even though it did not influence root depth. Nitrogen fertilization depended on the grass and management to have an effect in the parameters.

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Author Biography

Fernando França da Cunha, Universidade Federal de Viçosa

Possui graduação em Agronomia (2003) e mestrado em Engenharia Agrícola (2005) pela Universidade Federal de Viçosa e atualmente doutorando em Engenharia Agrícola pela mesma instituição na área de Recursos hídricos e Ambientais

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Published

2010-04-27

How to Cite

Cunha, F. F. da, Ramos, M. M., Alencar, C. A. B. de, Martins, C. E., Cóser, A. C., & Oliveira, R. A. de. (2010). Root system of six irrigated grasses under different nitrogen fertilization and management - DOI: 10.4025/actasciagron.v32i2.1020. Acta Scientiarum. Agronomy, 32(2), 351-357. https://doi.org/10.4025/actasciagron.v32i2.1020

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Issue

Vol 32 No 2 (2010)

Section

Crop Production

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