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Growth, nodulation and nitrogen fixation of cowpea in soils amended with composted tannery sludge Rev. Bras. Ciênc. Solo
Santos,Joseany Andrade; Nunes,Luís Alfredo Pinheiro Leal; Melo,Wanderley José de; Figueiredo,Marcia Barreto do Vale; Singh,Rajeev Pratap; Bezerra,Antônio Aécio Carvalho; Araújo,Ademir Sérgio Ferreira de.
Tannery wastes generation is increasing every year and a suitable method for tannery sludge management is necessary in order to decrease this environmental problem. The composting is recognized as a suitable method for sludge recycling.. The effect of tannery sludge compost (TSC) rates on growth, nodulation and N fixation of cowpea was investigated. Sandy and clayey soils were amended with TSC at rates of 0, 7.5, 15, 30, and 60 t ha-1. The shoot dry weight of cowpea plants 45 days after emergence (DAE) was greater in the TSC-amended than in the unamended soil. In the sandy soil, nodule dry weight increased with TSC application 45 DAE. In the clayey soil, 45 DAE, nodule dry weight decreased with TSC amendment levels greater than 7.5 t ha-1 compared to the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Waste; Soil texture; Composting; Heavy metal.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000600003
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