<b>Soil enzyme activities under pig slurry addition and different tillage systems</b> - doi: 10.4025/actasciagron.v33i4.9816

  • Elcio Liborio Balota Instituto Agronômico do Paraná
  • Oswaldo Machineski Instituto Agronômico do Paraná
  • Priscila Viviane Truber Instituto Agronômico do Paraná
Palavras-chave: Arylsulfatase, acid phosphatase, swine manure, no-tillage systems, nutrient cycling

Resumo

The objective of this work was to evaluate the changes in soil enzyme activities due to application of pig slurry under different soil tillage systems. The experiment was conducted in a clayey Oxisol in Palotina, PR, using different quantities of pig slurry (0, 30, 60 and 120 m3 ha-1 year-1) applied to the soil prior to the summer and winter crop season under conventional tillage (CT) and no tillage (NT), with three replicates. The areas were cultivated with soybean (Glycine max L.) and maize (Zea mays L.) in the summers of 1998 and 1999, respectively, and with wheat (Triticum sativum Lam.) in the winters of both years. The soil samples were collected in March and October of 1998 and 1999 at depths of 0-5, 5-10 and 10-20 cm. The pig slurry application and the soil tillage systems influenced enzyme activities in the soil. The increase of pig slurry application decreased the ratio of soil enzyme activities to microbial biomass carbon. The phosphatase activity had a negative relationship with soil-available phosphorus. The acid phosphatase activity decreased both under CT and NT systems at all depth studied due to pig slurry application.

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Biografia do Autor

Elcio Liborio Balota, Instituto Agronômico do Paraná
ssui graduação em Ciências Biológicas pela Pontifícia Universidade Católica de Campinas (1982), Mestrado em Agronomia (Microbiologia Agrícola) pela Universidade de São Paulo (1990) e Doutorado em Agronomia (Ciência do Solo) pela Universidade Federal Rural do Rio de Janeiro (1994). De 2000 a 2002 atuou como Pós-doc e Visiting Scientist no Oregon State University nos Estados Unidos na área de Ecologia Microbiana e Ciclagem de Nutrientes. Atualmente é professor cadastrado da Universidade Estadual de Londrina e Pesquisador III do Instituto Agronômico do Paraná. Tem experiência na área de Agronomia, com ênfase em Microbiologia e Bioquímica do Solo, atuando principalmente nos seguintes temas: ecologia microbiana, biomassa microbiana, micorrizas arbuscular, enzimas do solo, manejo do solo.
Oswaldo Machineski, Instituto Agronômico do Paraná
Área de Solos, Laboratorio de Microbiologia do Solo
Priscila Viviane Truber, Instituto Agronômico do Paraná
Laboratório de Microbiologia do Solo
Publicado
2011-05-04
Como Citar
Balota, E. L., Machineski, O., & Truber, P. V. (2011). <b>Soil enzyme activities under pig slurry addition and different tillage systems</b&gt; - doi: 10.4025/actasciagron.v33i4.9816. Acta Scientiarum. Agronomy, 33(4), 729-737. https://doi.org/10.4025/actasciagron.v33i4.9816
Seção
Solos

 

2.0
2019CiteScore
 
 
60th percentile
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2.0
2019CiteScore
 
 
60th percentile
Powered by  Scopus