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Quantitative differentiation between soil organic carbon and biochar carbon in Aridisol Ciencia e Investigación Agraria
Lara,Nelson; Figueroa,Leonardo; Carvajal,Fabiola; Zapata,Yubinza; Urbina,Camilo; Escobar,Hugo.
N. Lara, L. Figueroa, F. Carvajal, Y. Zapata, C. Urbina, and H. Escobar. 2013. Quantitative differentiation between soil organic carbon and biochar carbon in Aridisol. Cien. Inv. Agr. 40(2): 387-395. To understand the effect of biochar, identify its presence and quantify its stability in soil, it is necessary to differentiate between the two main sources of carbon. These sources are resident soil organic matter and biochar, which is produced by burning organic matter under low oxygen concentration in a process known as pyrolysis. The present study employs solid-liquid extraction with an alkaline solution, the efficiency of which was improved by a reflux system and quantification using the modified Walkley-Black method, to distinguish the two carbon sources...
Tipo: Journal article Palavras-chave: Alkaline extraction; Differentiate; Humic acid; Organic carbon.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000200013
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