Data/hora: 11/06/2024 16:21:16

Biblioteca(s): | Embrapa Agricultura Digital.
Data corrente: | 26/04/2011
Data da última atualização: | 24/01/2020
Autoria: | LOPES-ASSAD, M. L.; AVANSINI, S. H.; ERLER, G.; ROSA, M. M.; CARVALHO, J. R. P. de; CECCATO-ANTONINI, S. R.
Afiliação: | MARIA LEONOR LOPES-ASSAD, UFSCar; SIMONI HELENA AVANSINI, UFSCar; GREICE ERLER, UFSCar; MÁRCIA MARIA ROSA, UFSCar; JOSE RUY PORTO DE CARVALHO, CNPTIA; SANDRA REGINA CECCATO-ANTONINI, UFSCar.
Título: | Rock powder solubilization by Aspergillus niger as a source of potassium for agroecological systems.
Ano de publicação: | 2010
Fonte/Imprenta: | In: WORLD CONGRESS OF SOIL SCIENCE, SOIL SOLUTIONS FOR A CHANGING WORLD, 19., 2010, Brisbane. Electronic proceedings. Brisbane: International Union of Soil Sciences, 2010.
Páginas: | p. 219-221.
Idioma: | Inglês
Conteúdo: | Abstract - The objective of this work was to test the potassium (K) solubilization from minerals of an alkaline ultramafic rock powder by two strains (CCT4355 and CCT911) of Aspergillus niger. The experiment was carried out in triplicate in 250 mL erlenmeyer flasks over a period of 35 days. Soluble K, titratable acidity and pH were analysed and the solubilization rate (SR) was calculated relative to the total K in the rock powder (2.921 mmolc/L).The data obtained showed that both strains of A. niger fungus have high potential of K solubilization and could be used as an alternative for small farmers to produce biofertilizers using rock powder.
Palavras-Chave: | Fertilizantes; Mineralização do solo; Solubilização de potássio.
Thesagro: | Aspergillus Niger.
Thesaurus Nal: | Biofertilizers; Potassium.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
Registro original: | Embrapa Agricultura Digital (CNPTIA)
Exemplares: | CNPTIA - (15693-1) - UPC - AA - DD -  -  -  - DIS