Aeration condition of a clayey oxisol under long-term no-tillage

Edner Betioli Jnr, Cassio A Tormena, Wagner H Moreira, BC Ball, Getulio C Figueiredo, Alvaro P da Silva, Nayde FB Giarola

Research output: Contribution to journalArticleResearchpeer-review

4 Citations (Scopus)

Abstract

The hypothesis of this study was that the absence of soil tillage in long-term no-tillage (NT) systems can be detrimental to soil aeration. The objective was to assess the aeration condition of an Oxisol (Rhodic Ferrasol), very clayey texture (750 g kg-1 of clay; 200 g kg-1 of sand), after 30 years of cultivation under NT. The physical property soil air permeability (Ka) is sensitive to changes in the soil pore system. Aside from Ka, the air-filled porosity (εa) and indices of pore continuity (K1 and N), derived from the relationship between Ka andεa, were used as indices of soil aeration. From the soil layers 0.0-0.1 and 0.1-0.2 m, 240 undisturbed samples were collected along a transect perpendicular to the crop rows, at three sampling positions: corn plant row (CR); center of the interrow (INT); and the equidistant point between CR and INT (PE). The properties Ka andεa were determined at soil matric potentials (Ψm) of -2, -4, -6, -10, -30, and -50 kPa. Soil bulk density (BD) was also determined. The results confirmed the hypothesis. In the 0.0-0.1 m layer, Ka, K1, N andεa were significantly greater and BD significantly lower in CR than at the other sampling positions. At a Ψm of -10 kPa, the Ka of CR was 6.9 and 8.4 times higher than in PE and INT, respectively, in the 0.0-0.1 m layer. The properties Ka, K1 and N were sensitive enough to detect changes in the pore system and their differences between the sampling positions demonstrated the importance of the spatial location for soil sampling. Tilling the crop rows provides better soil aeration under NT.
Original languageEnglish
Pages (from-to)990 - 999
Number of pages10
JournalRevista Brasileira de Ciencia do Solo
Volume38
Issue number3
DOIs
Publication statusFirst published - May 2014

Fingerprint

Oxisol
Oxisols
zero tillage
aeration
no-tillage
Zea mays
soil
maize
bulk density
sampling
soil matric potential
soil pore system
soil air
crops
soil physical properties
porosity
tillage
permeability
air permeability
soil sampling

Bibliographical note

1023321

Keywords

  • Air permeability
  • Air-filled porosity
  • Pore continuity
  • Sampling spatial location
  • Soil compaction

Cite this

Betioli Jnr, E., Tormena, C. A., Moreira, W. H., Ball, BC., Figueiredo, G. C., da Silva, A. P., & Giarola, N. FB. (2014). Aeration condition of a clayey oxisol under long-term no-tillage. Revista Brasileira de Ciencia do Solo, 38(3), 990 - 999. https://doi.org/10.1590/S0100-06832014000300031
Betioli Jnr, Edner ; Tormena, Cassio A ; Moreira, Wagner H ; Ball, BC ; Figueiredo, Getulio C ; da Silva, Alvaro P ; Giarola, Nayde FB. / Aeration condition of a clayey oxisol under long-term no-tillage. In: Revista Brasileira de Ciencia do Solo. 2014 ; Vol. 38, No. 3. pp. 990 - 999.
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abstract = "The hypothesis of this study was that the absence of soil tillage in long-term no-tillage (NT) systems can be detrimental to soil aeration. The objective was to assess the aeration condition of an Oxisol (Rhodic Ferrasol), very clayey texture (750 g kg-1 of clay; 200 g kg-1 of sand), after 30 years of cultivation under NT. The physical property soil air permeability (Ka) is sensitive to changes in the soil pore system. Aside from Ka, the air-filled porosity (εa) and indices of pore continuity (K1 and N), derived from the relationship between Ka andεa, were used as indices of soil aeration. From the soil layers 0.0-0.1 and 0.1-0.2 m, 240 undisturbed samples were collected along a transect perpendicular to the crop rows, at three sampling positions: corn plant row (CR); center of the interrow (INT); and the equidistant point between CR and INT (PE). The properties Ka andεa were determined at soil matric potentials (Ψm) of -2, -4, -6, -10, -30, and -50 kPa. Soil bulk density (BD) was also determined. The results confirmed the hypothesis. In the 0.0-0.1 m layer, Ka, K1, N andεa were significantly greater and BD significantly lower in CR than at the other sampling positions. At a Ψm of -10 kPa, the Ka of CR was 6.9 and 8.4 times higher than in PE and INT, respectively, in the 0.0-0.1 m layer. The properties Ka, K1 and N were sensitive enough to detect changes in the pore system and their differences between the sampling positions demonstrated the importance of the spatial location for soil sampling. Tilling the crop rows provides better soil aeration under NT.",
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Betioli Jnr, E, Tormena, CA, Moreira, WH, Ball, BC, Figueiredo, GC, da Silva, AP & Giarola, NFB 2014, 'Aeration condition of a clayey oxisol under long-term no-tillage', Revista Brasileira de Ciencia do Solo, vol. 38, no. 3, pp. 990 - 999. https://doi.org/10.1590/S0100-06832014000300031

Aeration condition of a clayey oxisol under long-term no-tillage. / Betioli Jnr, Edner; Tormena, Cassio A; Moreira, Wagner H; Ball, BC; Figueiredo, Getulio C; da Silva, Alvaro P; Giarola, Nayde FB.

In: Revista Brasileira de Ciencia do Solo, Vol. 38, No. 3, 05.2014, p. 990 - 999.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Aeration condition of a clayey oxisol under long-term no-tillage

AU - Betioli Jnr, Edner

AU - Tormena, Cassio A

AU - Moreira, Wagner H

AU - Ball, BC

AU - Figueiredo, Getulio C

AU - da Silva, Alvaro P

AU - Giarola, Nayde FB

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PY - 2014/5

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AB - The hypothesis of this study was that the absence of soil tillage in long-term no-tillage (NT) systems can be detrimental to soil aeration. The objective was to assess the aeration condition of an Oxisol (Rhodic Ferrasol), very clayey texture (750 g kg-1 of clay; 200 g kg-1 of sand), after 30 years of cultivation under NT. The physical property soil air permeability (Ka) is sensitive to changes in the soil pore system. Aside from Ka, the air-filled porosity (εa) and indices of pore continuity (K1 and N), derived from the relationship between Ka andεa, were used as indices of soil aeration. From the soil layers 0.0-0.1 and 0.1-0.2 m, 240 undisturbed samples were collected along a transect perpendicular to the crop rows, at three sampling positions: corn plant row (CR); center of the interrow (INT); and the equidistant point between CR and INT (PE). The properties Ka andεa were determined at soil matric potentials (Ψm) of -2, -4, -6, -10, -30, and -50 kPa. Soil bulk density (BD) was also determined. The results confirmed the hypothesis. In the 0.0-0.1 m layer, Ka, K1, N andεa were significantly greater and BD significantly lower in CR than at the other sampling positions. At a Ψm of -10 kPa, the Ka of CR was 6.9 and 8.4 times higher than in PE and INT, respectively, in the 0.0-0.1 m layer. The properties Ka, K1 and N were sensitive enough to detect changes in the pore system and their differences between the sampling positions demonstrated the importance of the spatial location for soil sampling. Tilling the crop rows provides better soil aeration under NT.

KW - Air permeability

KW - Air-filled porosity

KW - Pore continuity

KW - Sampling spatial location

KW - Soil compaction

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JO - Revista Brasileira de Ciencia do Solo

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Betioli Jnr E, Tormena CA, Moreira WH, Ball BC, Figueiredo GC, da Silva AP et al. Aeration condition of a clayey oxisol under long-term no-tillage. Revista Brasileira de Ciencia do Solo. 2014 May;38(3):990 - 999. https://doi.org/10.1590/S0100-06832014000300031