EFFECT OF APPLICATION METHODS AND RATES OF CALCIUM SOURCES ON SOIL ALUMINUM FORMS

Autores

  • Camila Adaime Gabriel Universidade do Estado de Santa Catarina (UDESC), Lages, Santa Catarina
  • Paulo Cezar Cassol Universidade do Estado de Santa Catarina (UDESC), Lages, Santa Catarina
  • Mari Lucia Campos Universidade do Estado de Santa Catarina (UDESC), Lages, Santa Catarina
  • Gilmar Luiz Mumbach Universidade do Estado de Santa Catarina (UDESC), Lages, Santa Catarina
  • Mário Chaves Moraes Neto Universidade do Estado de Santa Catarina (UDESC), Lages, Santa Catarina

DOI:

https://doi.org/10.5380/rf.v54i1.89404

Palavras-chave:

Liming, Agricultural gypsum, Lime mud, Aluminum, Eucalyptus.

Resumo

Effect of application methods and rates of calcium sources on soil aluminum forms. The presence of aluminum (Al) in available forms in the soil can harm cultivated plants. Aluminum forms were evaluated in a Humic Cambisol soil grown with eucalyptus and treated with dolomitic limestone (DL), gypsum (GYP), and lime mud (LM), using surface applications over the total area (TA), to the planting strip (STRIP), and to the planting furrow with incorporation (FRW). The treatments were: Control; DL 3.5 Mg ha-1 TA; DL 1.75 Mg ha-1 STRIP; DL 3.5 Mg ha-1 STRIP; LM 3.5 Mg ha-1 STRIP; DL 3.5 Mg ha-1 + GYP 1.75 Mg ha-1 STRIP; DL 1.75 Mg ha-1 FRW; DL 1.75 Mg ha-1 + GYP 1.38 Mg ha-1 FRW; and GYP 1.38 Mg ha-1 FRW. After 31 and 56 months of applying the treatments, the levels of exchangeable Al (Al3+), Al bound to organic matter (Al - MO) and Al bound to low crystallinity and amorphous oxides (Al - OX) were determined in layers of up to 0.40 m. Al3+ contents decreased in the 0-0.05 m layer when DL and LM were applied in TA and STRIP and, in the lower layers when the first was incorporated in the FRW. Al-OM and Al-OX contents were 2.6 to 5.8-fold higher than Al3+. DL on TA decreases Al3+, Al-OM, and Al-OX contents in the 0-0.05 m layer. GYP application did not affect soil Al contents.

 

Biografia do Autor

Camila Adaime Gabriel, Universidade do Estado de Santa Catarina (UDESC), Lages, Santa Catarina

Engenheira Florestal e Doutora em Ciência do Solo

Paulo Cezar Cassol, Universidade do Estado de Santa Catarina (UDESC), Lages, Santa Catarina

Solos e Recursos Naturais

Mari Lucia Campos, Universidade do Estado de Santa Catarina (UDESC), Lages, Santa Catarina

Solos e Recursos Naturais

Gilmar Luiz Mumbach, Universidade do Estado de Santa Catarina (UDESC), Lages, Santa Catarina

Doutor em Ciência do Solo

Mário Chaves Moraes Neto, Universidade do Estado de Santa Catarina (UDESC), Lages, Santa Catarina

Engenheiro Agrônomo

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Publicado

29-08-2024

Como Citar

Gabriel, C. A., Cassol, P. C., Campos, M. L., Mumbach, G. L., & Moraes Neto, M. C. (2024). EFFECT OF APPLICATION METHODS AND RATES OF CALCIUM SOURCES ON SOIL ALUMINUM FORMS. FLORESTA, 54(1). https://doi.org/10.5380/rf.v54i1.89404

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