Efeitos da adição de biochar e fungos micorrízicos arbusculares ao substrato no crescimento de mudas cultivadas de Theobroma speciosum: um experimento preliminar

Karin Elisabeth von Schmalz; Ruan Santos de Farias; Vanessa Nascimento Brito; Isadora França; Rodolfo Salm; Emil José Hernández-Ruz

doi:10.70782/heringeriana.v19i1.918064

Autores

Karin Elisabeth von Schmalz Programa de Pós-Graduação em Biodiversidade e Biotecnologia da Rede Bionorte, Universidade Federal do Pará (UFPA), Faculdade de Ciências Biológicas https://orcid.org/0009-0006-8807-8567
Ruan Santos de Farias Universidade Federal do Pará (UFPA), Faculdade de Ciências Biológicas, Laboratório de Microbiologia https://orcid.org/0009-0006-8648-1731
Vanessa Nascimento Brito Universidade Federal do Pará (UFPA), Faculdade de Ciências Biológicas, Laboratório de Microbiologia https://orcid.org/0009-0001-1268-7490
Isadora França Universidade Federal do Pará (UFPA), Faculdade de Ciências Biológicas, Laboratório de Botânica
Rodolfo Salm Universidade Federal do Pará (UFPA), Faculdade de Ciências Biológicas, Laboratório de Ecologia
Emil José Hernández-Ruz Universidade Federal do Pará (UFPA), Faculdade de Ciências Biológicas, Laboratório de Zoologia https://orcid.org/0000-0002-3593-3260

DOI:

https://doi.org/10.70782/heringeriana.v19i1.918064

Palavras-chave:

agroforestry, Amazonia, cacauí, forest restoration, soil amendment

Resumo

Theobroma speciosum is an Amazonian species of high ecological and potential economic value, and has an untapped potential for agroforestry cultivation. The experiment, developed at the Experimental Shade House of the Federal University of Pará in Altamira, tested the effects of several types of substrates with different compositions, including varied proportions of biochar and inoculation with arbuscular mycorrhizal fungi (AMF), with the aim of testing the species’ tolerance and growth under these conditions. The application of biochar alone did not improve growth of seedlings, with higher concentrations of 30% being detrimental for the plants. The composition of 15% biochar with AMF inoculation yielded larger seedlings after six months. Our results suggest that soil enrichment with a mixture of low proportions of biochar and the inoculation of AMF may improve productivity in T. speciosum and allow the inclusion of the species in soils needing biochar-mediated pollution remediation even under extreme temperatures, although further studies are needed to ascertain optimal soil amendment.

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