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Aggregation agents and structural stability in soils with different texture and organic carbon contents Scientia Agricola
Carrizo,María Eugenia; Alesso,Carlos Agustín; Cosentino,Diego; Imhoff,Silvia.
The flat pampas in the state of Santa Fe in Argentina have soils with high silt content, variable carbon content, and diverse degrees of structural degradation. Aggregate stability has been used as an indicator of the structural condition of the soil. This study aimed to quantify the effect of the addition of crop residues and root activity on the agents of aggregation and mechanisms of aggregate breakdown in soils with different carbon contents and textures cultivated under no-till. An experimental trial was conducted on a loamy soil (Typic Hapludoll, Santa Isabel series) and a silty soil (Typic Argiudoll, Esperanza series) under controlled conditions for 112 days with the following treatments: (i) with and without wheat plant growth and (ii) with and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glomalin; Carbohydrates; Crop residues; Active roots.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000100075
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