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Carbon and Nitrogen Mineralization in Soil Combining Sewage Sludge and Straw Rev. Bras. Ciênc. Solo
Giacomini,Sandro José; Simon,Vera Lúcia Guedes; Aita,Celso; Bastos,Leonardo Mendes; Weiler,Douglas Adams; Redin,Marciel.
ABSTRACT The combined incorporation of sewage sludge (SS) and oat straw (OS) to the soil can increase straw carbon mineralization and microbial nitrogen immobilization. This hypothesis was tested in two laboratory experiments, in which SS was incorporated in the soil with and without OS. One treatment in which only straw was incorporated and a control with only soil were also evaluated. The release of CO2 and mineral N in the soil after organic material incorporation was evaluated for 110 days. The cumulative C mineralization reached 30.1 % for SS and 54.7 % for OS. When these organic materials were incorporated together in the soil, straw C mineralization was not altered. About 60 % of organic N in the SS was mineralized after 110 days. This N...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Decomposition; N immobilization; Biosolids.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000501428
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