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Effect of soil compaction by tractor traffic on soil structure, denitrification, and yield of wheat (Triticum aestivum L.)

By: Bakken, L.R.
Contributor(s): Borresen, T [coaut.] | Njos, A [coaut.].
Material type: materialTypeLabelArticlePublisher: 1987Subject(s): Denitrification | Loam soils | Soil compaction | Soil structure | Tractors | Yield factors | Triticum aestivum AGROVOC In: Journal of Soil Science v. 38, no. 3, p. 541-552617549Summary: In a field experiment with soil compaction by tractor traffic on a loam soil, denitrification rate (using the C2H2 inhibition method), soil structure and wheat yield were investigated. Tractor traffic on wet soil(> -50 mbar matricpotential) reduced the pore volume, doubled the percentage of large aggregates (> 20mm), reduced wheat yield by about 25%, and increased N-loss through denitrification by a factor of 3-4. Neither of these parameters was affected by tractor traffic at low soil moisture content. The weight of the tractor (1800 kgvs 4800 kg) did not significantly alter the effect of compaction on the measuredparameters. There was a factor of 2-6Collection: Reprints Collection
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Article CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

Reprints Collection REP-4115 (Browse shelf) 1 Available 617549
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Illustrations, tables, references p. 551-552

In a field experiment with soil compaction by tractor traffic on a loam soil, denitrification rate (using the C2H2 inhibition method), soil structure and wheat yield were investigated. Tractor traffic on wet soil(> -50 mbar matricpotential) reduced the pore volume, doubled the percentage of large aggregates (> 20mm), reduced wheat yield by about 25%, and increased N-loss through denitrification by a factor of 3-4. Neither of these parameters was affected by tractor traffic at low soil moisture content. The weight of the tractor (1800 kgvs 4800 kg) did not significantly alter the effect of compaction on the measuredparameters. There was a factor of 2-6

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