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

Authors

  • Leandro Pereira Pacheco Federal University of Mato Grosso image/svg+xml
  • Andressa Selestina Dalla Côrt São Miguel Federal University of Mato Grosso image/svg+xml
  • Edna Maria Bomfim-Silva Federal University of Mato Grosso image/svg+xml
  • Edicarlos Damacena de Souza Federal University of Mato Grosso image/svg+xml
  • Francine Damian da Silva Federal University of Mato Grosso image/svg+xml

DOI:

https://doi.org/10.5216/pat.v45i4.38107

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

Issue

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

Section

Research Article

License

Authors will not be paid for published articles and must waive their copyright in favor of the PAT journal. On the other hand, they are solely responsible for the content of those articles, even if the Editor holds the right to adjust them to the norms of the journal. Authors are allowed to publish their articles simultaneously in their institutional repositories, as soon as the original publication at the PAT journal is mentioned.

How to Cite

PACHECO, L. P. et al. Influence of soil bulk density on shoot and root traits of crotalaria. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], v. 45, n. 4, p. 464–472, 25 Jan.2016.