Data/hora: 04/06/2024 02:28:26

Biblioteca(s): | Embrapa Clima Temperado.
Data corrente: | 21/03/2023
Data da última atualização: | 21/03/2023
Autoria: | BICCA, J. M.; ARDUIN, R. L. N.; PINTO, L. F. S.; BAMBERG, A. L.; MIGUEL, P.; STUMPF, L.
Afiliação: | JULIANA MACIEL BICCA; RICARDO LUIZ NUNES ARDUIN; LUIZ FERNANDO SPINELLI PINTO; ADILSON LUIS BAMBERG, CPACT; PABLO MIGUEL; LIZETE STUMPF.
Título: | Clay stabilization and recovery of soil functions of a degraded solodic planosol through incorporation of agrominerals: A case study in southern Brazil.
Ano de publicação: | 2023
Fonte/Imprenta: | Journal of South American Earth Sciences, v. 122, 104177, 2023.
DOI: | https://doi.org/10.1016/j.jsames.2022.104177
Idioma: | Inglês
Conteúdo: | This paper describes the performance of addition rates of basaltic breccia and agricultural gypsum on clay stabilization and nutrients release of a solodic Planosol from a degraded borrow area located in Southern Brazil. A leaching experiment was carried out in PVC cylinders filled with 1.5 kg of soil (C horizon), in which two chemical amendments were added in three different proportions: a) basaltic breccia in 7, 14 and 21 Mg ha?1 doses; b) agricultural gypsum in 7, 14 and 21 Mg ha?1 doses; and c) a standard soil, without chemical correction. Distilled water (300 mL) were added every 7 days for 20 weeks and the pH, electrical conductivity, calcium, magnesium, sodium and potassium contents and the water-dispersible clay were analyzed in the collected leachates. Gypsum was more efficient than basaltic breccia to promote clay flocculation, even at the lower rate (7 Mg ha?1). The application of basaltic breccia up to 21 Mg ha?1 reduced the amount of nutrients released directly to the soil solution, reducing soil leaching. The application of basaltic breccia at the dosage of 7 Mg ha?1 was able to reduce more than 65% of the water-dispersive clay from the degraded solodic Planosol.
Palavras-Chave: | Agromineral; Brecha basáltica; Gesso agrícola.
Thesagro: | Corretivo; Gesso; Matéria Prima Mineral; Mineral; Solo.
Thesaurus Nal: | Basaltic soils; Gypsum.
Categoria do assunto: | --
Registro original: | Embrapa Clima Temperado (CPACT)
Exemplares: | CPACT - (22593-1) - UPC - AP - DD -  -  -  - DIS