Skip to main content
Article thumbnail
Location of Repository

Cations leaching behavior from wastewater swine application in soil with corn growth

By Lusiani Zanuzo

Abstract

O objetivo deste trabalho foi avaliar os cÃtions lixiviados em lisÃmetros preenchidos com solo tipo Latossolo Vermelho DistrofÃrrico, cultivados com milho irrigado com Ãgua residuÃria de suinocultura. Os fatores estudados foram a Ãgua residuÃria em quatro nÃveis (112,5, 225,0, 337,5 e 450 m3/ha) e a adubaÃÃo quÃmica em dois nÃveis (50% e 75% do nitrogÃnio recomendado para a cultura do milho) ao longo do ciclo da cultura. A irrigaÃÃo foi realizada intercalando Ãgua e Ãgua residuÃria de suinocultura a cada 15 dias. Os cÃtions avaliados no solo e no percolado foram K+, Na+, Ca2+, Mg2+. O delineamento experimental foi em esquema fatorial 4x2, com trÃs repetiÃÃes por tratamento e avaliaÃÃes em quatro perÃodos do desenvolvimento da planta. As mÃdias foram comparadas pelo teste de Tukey a 5% de significÃncia. Os resultados apontam que as concentraÃÃes mÃdias dos lixiviados foram maiores para os elementos quÃmicos estudados na seguinte ordem: Na+> K+ > Ca2+ >Mg2+. As taxas da Ãgua residuÃria de suinocultura produziram, proporcionalmente, maiores concentraÃÃes mÃdias nos lixiviados para Na+, apenas no Ãltimo perÃodo avaliado. A adubaÃÃo quÃmica influenciou nas maiores concentraÃÃes do K+ lixiviado. De modo geral, ao longo do experimento, foram observadas maiores concentraÃÃes de Ca2+ e Mg2+ no solo e de Na+ no lixiviado.The objective of this work was evaluated the cationÂs leaching corn planted and irrigated with swine waste water in lysimeters. The factors and levels of treatments were: four levels of with swine wastewater (112.5, 225.0, 337.5 and 450.0 m3 ha-1), two levels of chemical fertilization (50% and 75% of nitrogen recommend) and three repetitions. The time after sowing was considered analysis factor to evaluate the time effects accumulation of cations in soil. The irrigation was realized switching water and wastewater in each period of 15 days. The lysimeters was built with fiber boxes, capacity of 1 m3, 1.6 m of diameter, spacing of 0,4 x 0,5 m and 1,2 m of depth. The statistical analysis used was split-plot. The leachingÂs concentrations were larger for the chemical elements in the following order: Na+ > K+ > Ca2+ > Mg2+. In general, the factor swine wastewater produced proportional larger concentrations in the leaching of Na+. The chemical fertilization factor influenced in the largest concentrations of the K+ leaching. The time after sowing influenced in the largest concentrations of Ca2+ and Mg2+ in the soil and of Na+ leaching

Topics: Efluente, reuso de Ãgua, lisÃmetro, effluent, water reuse, lysimeter, ENGENHARIA AGRICOLA, ENGENHARIA AGRICOLA
Publisher: Universidade Estadual do Oeste do Parana
Year: 2007
OAI identifier: oai:agregador.ibict.br.BDTD_UNIOESTE:oai:unioeste.br:170
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://www.rcaap.pt/detail.jsp... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.