<b>Carbon, nitrogen and natural abundance of δ<sup>13</sup>C e δ<sup>15</sup>N of light-fraction organic matter under no-tillage and crop-livestock integration systems</b> - doi: 10.4025/actasciagron.v34i4.15061

  • Arcângelo Loss Universidade Federal Rural do Rio de Janeiro
  • Marcos Gervasio Pereira Universidade Federal Rural do Rio de Janeiro
  • Adriano Perin Instituto Federal de Educação Ciência e Tecnologia Goiano
  • Sidinei Julio Beutler Universidade Federal Rural do Rio de Janeiro
  • Lúcia Helena Cunha dos Anjos Universidade Federal Rural do Rio de Janeiro
Palavras-chave: Cerrado, brachiaria, plant residues, isotopic composition, physical indicators

Resumo

This study aimed to quantify the light organic matter mass (LOM) in water, free light fraction (FLF) of soil organic matter (SOM) and carbon (C), nitrogen (N) contents and natural abundance of δ13C e δ15N contained in the mass of LOM, C and N in the FLF in land use systems in the Cerrado region of Goiás State, Brazil. Were evaluated a crop-livestock integration system - CLIS (corn+brachiaria/bean/cotton/soybean) and no-tillage system - NTS (sunflower/millet/soybean/corn). The vegetal coverage of natural Cerrado, adjacent to NTS and CLIS, was considered as the original soil condition. Soil samples were collected at depths of 0.0-5.0 and 5.0-10.0 cm in full random experimental design. The CLIS showed the greatest mass and levels of C-LOM (5-10 cm), and too greatest mass and levels of C and N of FLF (0-10 cm) when compared with the NTS. Regarding the Cerrado, the CLIS showed higher values for N-LOM and 1δ15N-LOM (0-5 cm), C and N of FLF (0-5 cm). Through physical indicators LOM and FLF, it was possible to infer that the CLIS increased the SOM fractions when compared to the NTS.

 

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Biografia do Autor

Arcângelo Loss, Universidade Federal Rural do Rio de Janeiro
Pós-Doutorando em Agronomia - Ciência do Solo (CPGA-CS) da UFRRJ, Bolsista CNPq, IA, DS, BR 465, km 7, Seropédica, RJ. CEP 23890-000
Marcos Gervasio Pereira, Universidade Federal Rural do Rio de Janeiro
Associate Professor III, Institute of Agronomy, Department of Soils, UFRRJ, Seropédica, RJ, 2389000.
Adriano Perin, Instituto Federal de Educação Ciência e Tecnologia Goiano
Professor at the Federal Institute of Education, Science and Technology of Goiás, Campus of Rio Verde. Rod Sul Goiana, km 01, Zona Rural, CEP 75901-970 Rio Verde, GO.
Sidinei Julio Beutler, Universidade Federal Rural do Rio de Janeiro
MS at CPGA-CS, Institute of Agronomy, Department of Soils, UFRRJ, Seropédica, RJ, 2389000.
Lúcia Helena Cunha dos Anjos, Universidade Federal Rural do Rio de Janeiro
Associate Professor III, Institute of Agronomy, Department of Soils, UFRRJ, Seropédica, RJ, 2389000.
Publicado
2012-04-10
Como Citar
Loss, A., Pereira, M. G., Perin, A., Beutler, S. J., & Anjos, L. H. C. dos. (2012). <b>Carbon, nitrogen and natural abundance of δ<sup>13</sup>C e δ<sup>15</sup>N of light-fraction organic matter under no-tillage and crop-livestock integration systems</b&gt; - doi: 10.4025/actasciagron.v34i4.15061. Acta Scientiarum. Agronomy, 34(4), 465-472. https://doi.org/10.4025/actasciagron.v34i4.15061
Seção
Solos

 

2.0
2019CiteScore
 
 
60th percentile
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2.0
2019CiteScore
 
 
60th percentile
Powered by  Scopus