Seedlings of Eucalyptus dunnii grown in renewable substrate

Authors

  • Dagma Kratz UFPR
  • Ivar Wendling Embrapa Florestas

DOI:

https://doi.org/10.5380/rf.v43i1.25989

Keywords:

Eucalipto, casca de arroz carbonizada, fibra de coco, casca de pínus.

Abstract

Abstract

The pressing need to increase the number of seedlings planted annually and variability of raw materials for traditional composition of substrates have led to the need to develop studies aimed at evaluating these materials, technically and economically feasible. Based on this, the present study aimed to evaluate the technical feasibility of using fine vermiculite (VF) and component-based renewable coconut fiber (FC), rice hulls (CAC) in different grain sizes and two commercial substrates composed by pine bark semidecomposta (SC) in the composition of substrates for the production of seedlings of Eucalyptus dunnii, and assess the correlation between the physical and chemical properties of the substrates with the quality of the seedlings. 14 treatments were formulated, and the sowing in tubes of 55 cm³. Based on these results, the substrate that provided greater seedling growth of Eucalyptus dunnii CAC was combined with VF, followed by the SC, while those based CAC in different particle sizes, combined or not with CF, gave low growth. Regarding the properties of the substrates, it was identified that the bulk density, total porosity, macroporosity, pH and cation exchange capacity correlated with seedling growth.

Keywords: Eucalyptus; rice hulls; coconut fiber; pine bark.


Author Biographies

Dagma Kratz, UFPR

Engenheira Florestal, doutoranda em Engenharia Florestal na Universidade Federal do Paraná (UFPR), Setor de Ciências Agrárias, Rua Lothário Meissner, 632, Jardim Botânico, CEP 80210-170, Curitiba (PR). 

Ivar Wendling, Embrapa Florestas

Engenheiro Florestal, Dr., Pesquisador da Embrapa Florestas, Estrada da Ribeira, Km 111, Caixa Postal 319, CEP 83411-000, Colombo, PR.

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Published

2013-04-24

How to Cite

Kratz, D., & Wendling, I. (2013). Seedlings of Eucalyptus dunnii grown in renewable substrate. Floresta, 43(1), 125–136. https://doi.org/10.5380/rf.v43i1.25989

Issue

Vol. 43 No. 1 (2013)

Section

Artigos

License

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