Influence of soil bulk density on shoot and root traits of crotalaria

Authors

  • Leandro Pereira Pacheco Universidade Federal de Mato Grosso
  • Andressa Selestina Dalla Côrt São Miguel Universidade Federal de Mato Grosso
  • Edna Maria Bomfim-Silva Universidade Federal de Mato Grosso
  • Edicarlos Damacena de Souza Universidade Federal de Mato Grosso
  • Francine Damian da Silva Universidade Federal de Mato Grosso

Keywords:

Crotalaria juncea, Crotalaria spectabilis, Crotalaria ochroleuca, root development.

Abstract

The selection of cover crop species with high potential for root growth in dense layers of soil can help in the management of agricultural systems through biological soil unpacking. This study aimed at evaluating the performance of crotalaria species (Crotalaria juncea, C. spectabilis and C. ochroleuca) as unpacking agents, in a dystrophic Oxisol under different bulk densities (1.0 Mg m-3, 1.2 Mg m-3, 1.4 Mg m-3, 1.6 Mg m-3 and 1.8 Mg m-3). All species showed reduction in the growth of shoots and roots, when cultivated in soil with bulk density higher than 1.4 Mg m-3. Crotalaria juncea showed the best results for shoot and root biomass production with bulk density up to 1.4 Mg m-3. The root growth of plants is higher in layers above and below the compacted layer.

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Published

2016-01-25

How to Cite

PACHECO, L. P.; SÃO MIGUEL, A. S. D. C.; BOMFIM-SILVA, E. M.; SOUZA, E. D. de; SILVA, F. D. da. Influence of soil bulk density on shoot and root traits of crotalaria. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 45, n. 4, p. 464–472, 2016. Disponível em: https://revistas.ufg.br/pat/article/view/38107. Acesso em: 23 nov. 2024.

Issue

v. 45, n. 4, Oct./Dec. 2015

Section

Research Article

License

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