Data/hora: 09/06/2024 05:57:30

Biblioteca(s): | Embrapa Clima Temperado.
Data corrente: | 21/03/2023
Data da última atualização: | 21/03/2023
Autoria: | MONTEIRO, A. B.; PEREIRA, I. dos S.; BAMBERG, A. L.; RIBEIRO, P. L.; STÖCKER, C. M.; TIMM, L. C.; MARTINAZZO, R.; SILVEIRA, C. A. P.; PILLON, C. N.
Afiliação: | ALEX BECKER MONTEIRO; IVAN DOS SANTOS PEREIRA; ADILSON LUIS BAMBERG, CPACT; PABLO LACERDA RIBEIRO; CRISTIANE MARILIZ STÖCKER; LUÍS CARLOS TIMM; ROSANE MARTINAZZO, CPACT; CARLOS AUGUSTO POSSER SILVEIRA, CPACT; CLENIO NAILTO PILLON, CPACT.
Título: | Efficient substrates based on anaerobic sewage sludge biochar for tobacco seedlings in floating systems.
Ano de publicação: | 2022
Fonte/Imprenta: | Archives of Agronomy and Soil Science, 2022.
Idioma: | Inglês
Notas: | Published online: 06 Jun 2022.
Conteúdo: | The objective was to develop efficient substrates, with increasing proportions of biochar derived from anaerobic sewage sludge (ASS-biochar) and regionally available raw materials, to produce tobacco seedlings (Nicotiana tabacum) in floating systems. Physical, hydraulic and chemical variables and the effects on tobacco plants were evaluated through an indoor experiment with seedling production. The experiment was conducted on trays in a floating hydroponic system in a randomized block design with four replications and eight plants per plot. The ASS-biochar showed environmental safety and agronomic efficiency in substrate composition, in particular with 50% to 90% ASS-biochar in the formulation. The best formulations positively affected the growth-related variables, showing similar or superior performance to the three commercial substrates (references). The ideal ranges of the substrate characteristics were: dry density: 420?520 kg m?3; total porosity: 60?75%; aeration space: 25?35%; easily available water: 9?12%; water buffering capacity: 3?5%; available water: 12?15%; remaining water: 20?25%; pH: 6.0?6.5; electrical conductivity: 1.4?2.3 mS cm?1. The development of substrates considering ASS-biochar, regional raw materials and ideal physical-chemical properties would prevent environmental pollution by generating value-added products to improve tobacco seedlings and expand the productivity and quality of tobacco worldwide.
Palavras-Chave: | Lodo de esgoto; Tabaco.
Thesagro: | Lodo Residual; Substrato de Cultura.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152563/1/Efficient-substrates-based-on-anaerobic-sewage-sludge-biochar-for-tobacco-seedlings-in-floating-systems.pdf
Registro original: | Embrapa Clima Temperado (CPACT)
Exemplares: | CPACT - (22591-1) - UPC - AP - DD -  -  -  - DIS