CARBON, NITROGEN, AND ORGANIC MATTER OF SOIL IN AN INTEGRATED CROP-LIVESTOCK SYSTEM

Visualizações: 702

Authors

  • Eloisa Mattei Universidade Estadual do Oeste do Paraná - UNIOESTE, Campus Marechal Cândido Rondon, Paraná. https://orcid.org/0000-0002-0010-5385
  • Paulo Sérgio Rabello de Oliveira Universidade Estadual do Oeste do Paraná - UNIOESTE, Campus Marechal Cândido Rondon, Paraná.
  • Leandro Rampim Universidade Estadual do Centro-Oeste – UNICENTRO, Campus CEDETEG, Guarapuava, Paraná.
  • Carlos Augusto Rocha de Moraes Rego Universidade Estadual do Oeste do Paraná - UNIOESTE, Campus Marechal Cândido Rondon, Paraná.
  • Jeferson Tiago Piano Universidade Estadual do Oeste do Paraná - UNIOESTE, Campus Marechal Cândido Rondon, Paraná.
  • Marinez Carpiski Sampaio Universidade Estadual do Oeste do Paraná - UNIOESTE, Campus Marechal Cândido Rondon, Paraná.

DOI:

https://doi.org/10.32404/rean.v7i2.4526

Abstract

This study aimed to evaluate the effect of the integrated crop-livestock system on the contents and stocks of total organic carbon, total nitrogen, and soil organic matter. The experiment was carried out between April 2016 and February 2017, in a randomized block design in a strip-block scheme, with additional control treatment (fallow) and four repetitions. The treatments consisted of two densities of oat sowing (40 and 60 kg ha-1) in strips A and different grazing frequencies (without grazing - WG, one grazing - 1G, and two grazing - 2G) in strips B, besides fallow as a control treatment. The determinations of the contents of total organic carbon (TOC), total nitrogen (TN), and organic matter (SOM) were carried out in the soil layers of 0-5, 5-10, and 10-20 cm. Samplings were carried out after oat management, in the winter, and after soybean harvest, in the summer. The sowing density of black oats and the grazing frequencies were not able to promote changes in the total organic carbon and in the TOC stock, regardless of the time of evaluation. The use of 40 kg ha-1 of oat seeds would be recommended, as it does not promote changes in the increase in MOS, thus generating savings in the acquisition of seeds. The use of the lowest density of oat without grazing and one grazing promoted changes on the total nitrogen in the 5-10 cm layer after the removal of oats, when compared to the fallow, and it presented content similar to the management with two grazings.

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Published

2020-11-30

How to Cite

Mattei, E., Rabello de Oliveira, P. S., Rampim, L., Rocha de Moraes Rego, C. A., Piano, J. T., & Carpiski Sampaio, M. (2020). CARBON, NITROGEN, AND ORGANIC MATTER OF SOIL IN AN INTEGRATED CROP-LIVESTOCK SYSTEM. REVISTA DE AGRICULTURA NEOTROPICAL, 7(4), 7–14. https://doi.org/10.32404/rean.v7i2.4526

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Vol. 7 No. 4 (2020): REVISTA DE AGRICULTURA NEOTROPICAL

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