Soil carbon and nitrogen stocks and physical properties under no‐till and conventional tillage cotton‐based systems in the B razilian C errado

The aim of this study was to investigate soil C and N stocks and soil physical properties under a cotton ( Gossypium hirsutum ) based system using no‐till (NT) and conventional tillage (CT). The experiment was established as a randomized block design with four replications of six treatments as follo...

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Bibliographic Details
Published in:Land degradation & development 2018-10, Vol.29 (10), p.3405-3412
Main Authors: Souza, Leticia Helena Campos, Matos, Eduardo da Silva, Magalhães, Ciro Augusto de Souza, de la Torre, Élio R., Lamas, Fernando Mendes, Lal, Rattan
Format: Article
Language:English
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Summary:The aim of this study was to investigate soil C and N stocks and soil physical properties under a cotton ( Gossypium hirsutum ) based system using no‐till (NT) and conventional tillage (CT). The experiment was established as a randomized block design with four replications of six treatments as follows: [NT1], NT system with crop rotation of cotton/soybean ( Glycine max )/maize ( Zea mays ) + brachiaria ( Brachiaria ruziziensis ); [NT2], NT system with crop rotation of soybean/maize + brachiaria/cotton; [NT3], NT system with crop rotation of maize + brachiaria/cotton/soybean; [CR1], CT with annual rotation (soybean/cotton); and [CR2], CT with biannual rotation (soybean/soybean/cotton) and [CT1] CT with cotton monoculture. An area of native Cerrado vegetation was used as the reference or baseline. Soil samples were obtained from 0‐ to 5‐, 5‐ to 10‐, 10‐ to 20‐, 20‐ to 30‐, 30‐ to 60‐, and 60‐ to 100‐cm depths. After 9 years of cultivation, soil under NT systems contained higher C concentrations than those under CT ( p  
ISSN:1085-3278
1099-145X
DOI:10.1002/ldr.3105