Aggregate size distribution and associated organic C and N under different tillage systems and Ca-amendment in a degraded Ultisol
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- 作者：Chiquinquirá ; Hontoria ; c.hontoria@upm.es" class="auth_mail" title="E-mail the corresponding author ; Clara Gó ; mez-Paccard ; Ignacio Mariscal-Sancho ; Marta Benito ; Juana Pé ; rez ; Rafael Espejo
- 关键词：No-tillage ; Soil organic matter ; Soil aggregates ; Aggregation hierarchy ; Ultisols
- 刊名：Soil & Tillage Research
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：160
- 期：Complete
- 页码：42-52
- 全文大小：1024 K
文摘
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No-tillage increased about 40% the macroaggregate fraction in the surface layer.
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Aggregation was strongly influenced by tillage and slightly by Ca-amendment.
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Unlike other studies in tropical soils, we found an aggregation hierarchy.
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Organic matter seems to be a key factor for aggregation even in some tropical soils.