Comparação entre esterco bovino, composto orgânico e vermicomposto na produção de mudas de Eucalyptus urograndis
- Daniel Pazzini Eckhardt 1
- Natielo Almeida Santana 2
- Eduardo Lorensi de Souza 3
- Paulo Ademar Avelar Ferreira 1
- Zaida Inês Antoniolli 1
- Jorge Domínguez Martin 4
- Rodrigo Josemar Seminoti Jacques 1
- 1 Departamento de Solos. Universidade Federal de Santa Maria. Brasil
- 2 Departamento de Engenharia Sanitária e Ambiental. Universidade Federal de Santa Maria. Brasil
- 3 Universidade Estadual do Rio Grande do Sul. Brasil
- 4 Universidade de Vigo. España
ISSN: 0103-8478
Ano de publicación: 2021
Volume: 51
Número: 9
Tipo: Artigo
Outras publicacións en: Ciencia rural
Resumo
Composting and vermicomposting before addition to the soil is a viable alternative to the disposal of cattle manure. However, this residue has been used in the untreated form for seedling production. This study evaluated the use of cattle manure in natura, and the organic composted or vermicomposted variants of cattle manure on substrates used in the production of Eucalyptus urograndis seedlings. The treatments consisted of substrates formulated by mixing the organic fertilizers with washed sand in 20, 40, 60, 80 or 100 (v/v) percentages, compared to a commercial substrate. The E. urograndis seedlings were grown in tubes in a greenhouse and evaluated after 120 days for shoot and root dry weights, plant height, stem diameter, shoot/root ratio, and Dickson quality index. The substrate formulated from a mixture of 80% (v/v) of cattle manure in natura and washed sand allows for better development in Eucalyptus seedlings. Substrate containing 100% bovine manure vermicompost or organic compost produced seedlings with lower quality than in natura bovine manure but superior to the commercial substrate. Due to the health risks associated with use of untreated bovine manure, organic compost and vermicompost are good alternatives for the production of E. urograndis seedlings.