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Accumulation and decomposition of cultural residues of Theobroma grandiflorum, Paullinia cupana, Bixa orellana and forest in the southern region of Amazonas.
Paula, E M B; Cunha, J M; Campos, M C C; Silva, D M P; Silva, C L; Lima, A F L; Mantovanelli, B C.
Afiliación
  • Paula EMB; Universidade Federal do Amazonas - UFAM, Instituto de Educação, Agricultura e Ambiente, Programa de Pós-graduação em Ciências Ambientais - PPGCA, Humaitá, AM, Brasil.
  • Cunha JM; Universidade Federal do Amazonas - UFAM, Instituto de Educação, Agricultura e Ambiente, Programa de Pós-graduação em Ciências Ambientais - PPGCA, Humaitá, AM, Brasil.
  • Campos MCC; Universidade Federal da Paraíba - UFPB, Departamento de Solos e Engenharia Rural, Programa de Pós-graduação em Ciências do Solo - PPGCS, Centro de Ciências Agrárias, Areia, PB, Brasil.
  • Silva DMP; Universidade Federal do Amazonas - UFAM, Instituto de Educação, Agricultura e Ambiente, Programa de Pós-graduação em Ciências Ambientais - PPGCA, Humaitá, AM, Brasil.
  • Silva CL; Universidade Federal do Amazonas - UFAM, Instituto de Educação, Agricultura e Ambiente, Programa de Pós-graduação em Ciências Ambientais - PPGCA, Humaitá, AM, Brasil.
  • Lima AFL; Universidade Federal do Amazonas - UFAM, Faculdade de Ciências Agrarias, Programa de Pós-graduação em Agronomia Tropical - PPGATR, Manaus, AM, Brasil.
  • Mantovanelli BC; Universidade Federal do Amazonas - UFAM, Instituto de Educação, Agricultura e Ambiente, Programa de Pós-graduação em Ciências Ambientais - PPGCA, Humaitá, AM, Brasil.
Braz J Biol ; 83: e264237, 2023.
Article en En | MEDLINE | ID: mdl-36651448
The litter deposited on the soil surface at various stages of decomposition is important for primary productivity that impacts the microbial communities and soil carbon storage. The objective of this study was to evaluate the accumulation and decomposition of cultural residues of Theobroma grandiflorum (Willd. ex. Spreng) Schum, Paullinia cupana (Mart.) Ducke, Bixa orellana L., and forest in the Amazon region. The study was carried out in the São Francisco settlement, Canutama in the south of Amazonas, in a randomized block experimental design, and the treatments consisted of four areas with different crops: 1 - P. cupana; 2 - T. grandiflorum; 3 - B. orellana; 4 - Native woodland area (forest), in time subdivided plots: 7, 15, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, and 330 days after the distribution of the bags in the field, all with four repetitions. To evaluate the contribution and fractions of litter, conical collectors were used in each area, and collections were performed monthly in the period from March 2020 to February 2021. The estimate of the decomposition rate of the litter was done by quantifying the loss of mass, using litter bags, which allow for a direct analysis of the rate of decay over time. The forest and P. cupana environments presented the highest litter production, and greater deposition when compared to environments cultivated with T. grandiflorum and B. orellana. The forest and B. orellana areas showed the highest speed of decomposition, while the opposite situation occurred under T. grandiflorum and P. cupana cultivation.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Cacao / Paullinia Tipo de estudio: Clinical_trials Idioma: En Revista: Braz J Biol Asunto de la revista: BIOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Brasil
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Cacao / Paullinia Tipo de estudio: Clinical_trials Idioma: En Revista: Braz J Biol Asunto de la revista: BIOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Brasil