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Dolomite lime’s reaction applied on the surface of a sandy soil of the Northwest Paraná, Brazil
- Source :
- Brazilian Archives of Biology and Technology, Vol 45, Iss 2, Pp 219-222 (2002), Brazilian Archives of Biology and Technology, Volume: 45, Issue: 2, Pages: 219-222, Published: JUN 2002, Brazilian Archives of Biology and Technology v.45 n.2 2002, Brazilian Archives of Biology and Technology, Instituto de Tecnologia do Paraná (Tecpar), instacron:TECPAR
- Publication Year :
- 2002
- Publisher :
- Instituto de Tecnologia do Paraná (Tecpar), 2002.
-
Abstract
- Low Ca and Mg are serious limitations to crop production in sandy soils of the northwest Paraná, Brazil. Thus soil samples of an Oxisol collected in this region were packed into 30cm long columns. Dolomite lime (2.0, 0.84, 0.30, and < 0.30 mm screen) was added on soil surface, then leached with deionized water. Thereafter, the columns were dismantled and the soil cut into 5cm segments for chemical analysis. Dolomite lime increased pHCaCl2,, KCl-exchangeable Ca and Mg and residual CO3 mostly in the top surface layers. Surface dolomite lime had no effect on pH, Ca, Mg, and CO3 in the leachate, independent on the lime particle size. These results indicated that surface dolomite lime application had no effect on subsoil composition and mostly of the calcium and magnesium carbonates are still unreacted on the soil surface.A deficiência de Ca e Mg são fatores que podem limitar a produção agrícola nos solos arenosos do Noroeste do Paraná, Brasil. Amostras de um Latossolo Vermelho escuro coletado nesta região foram incubadas em colunas de PVC de 30 cm de comprimento, aplicando-se calcário dolomítico (peneiras tamanho 2.0, 0.84, 0.30, e
- Subjects :
- Multidisciplinary
Soil test
subsoil acidity
Magnesium
lcsh:Biotechnology
Dolomite
Mineralogy
chemistry.chemical_element
engineering.material
Ca and Mg leaching
chemistry
Oxisol
Environmental chemistry
lcsh:TP248.13-248.65
Soil water
engineering
Environmental science
Liming
Leachate
Subsoil
TP248.13-248.65
Lime
Biotechnology
Subjects
Details
- Language :
- English
- ISSN :
- 16784324
- Volume :
- 45
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Brazilian Archives of Biology and Technology
- Accession number :
- edsair.doi.dedup.....0b25271c801c613a9a584fe0b8d927c5