Plant Soil Environ., 2002, 48(1):20-26 | DOI: 10.17221/4201-PSE

Effects of disk tillage on soil condition, crop yield and weed infestation

M. Birkás, T. Szalai, C. Gyuricza, M. Gecse, K. Bordás
Institute of Crop Production, Szent István University, Gödöllõ, Hungary

This research was instigated by the fact that during the last decade annually repeated shallow disk tillage on the same field became frequent practice in Hungary. In order to study the changes of soil condition associated with disk tillage and to assess it is consequences, long-term tillage field experiments with different levels of nutrients were set up in 1991 (A) and in 1994 (B) on Chromic Luvisol at Gödöllö. The effects of disk tillage (D) and disk tillage combined with loosening (LD) on soil condition, on yield of maize and winter wheat, and on weed infestation were examined. The evaluation of soil condition measured by cone index and bulk density indicated that use of disking annually resulted in a dense soil layer below the disking depth (diskpan-compaction). It was found, that soil condition deteriorated by diskpan-compaction decreased the yield of maize significantly by 20 and 42% (w/w), and that of wheat by 13 and 15% (w/w) when compared to soils with no diskpan-compaction. Averaged over seven years, and three fertilizer levels, the cover % of the total, grass and perennial weeds on loosened soils were 73, 69 and 65% of soils contained diskpan-compaction.

Keywords: disk tillage; soil loosening; soil compaction; diskpan; maize; winter wheat; weed management

Published: January 31, 2002  Show citation

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Birkás M, Szalai T, Gyuricza C, Gecse M, Bordás K. Effects of disk tillage on soil condition, crop yield and weed infestation. Plant Soil Environ. 2002;48(1):20-26. doi: 10.17221/4201-PSE.
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