Effect of annual lupines growing on compacted sandy loam Stagnic Luvisol

Reintam, Endla; Kuht, J.; Trükmann, Katrin; Filho, Walter Leal

doi:10.1080/03650340600581885

Cited by 2 publications

(1 citation statement)

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“…Jorajuria and Draghi (1997) found a yield decrease of 52-76% for grassland vegetation in the traffic lane. Glab (2008) showed a decrease of up to 27% in the aboveground dry weight of lucerne, and Reintam et al (2006) showed a decrease of up to 50% in the shoot dry weight of barley and narrow-leafed lupine. In the same study they also found that yellow lupine shoot mass decreased by 10% on the plots wheeled 6 times (total tractor weight 4.8 Mg) on a Stagnic Luvisol (LVst) sandy loam.…”

Section: Introductionmentioning

confidence: 97%

Soil compaction in a Cambisol under grassland in Estonia

Krebstein

Janowsky²,

Reintam

et al. 2013

Zemdirbyste-Agriculture

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In soil compaction research, more attention has been given to arable land than to grasslands. Our objective was to investigate the effect of agricultural machinery on the physical and mechanical properties of soil under intensively cut lucerne (Medicago sativa L.). A field experiment was conducted in South Estonia, near the city of Tartu, on a second-year mainly lucerne field on a sandy loam Calcaric Cambisol (CMca). After the third silage cut, soil properties were measured in the wheel traffic lanes (compacted) and between the traffic lanes (uncompacted). Our results showed that wheeling significantly affected the soil structure. Soil compaction increased soil bulk density (BD) by 0.19 g cm-3 at 5 cm depth and by 0.14 g cm-3 at 10 cm depth. Soil compaction also affected the pore distribution: soil air capacity (AC) in compacted soil at 5 and 10 cm depth was significantly (more than 10 vol. %) lower than in uncompacted soil, and plant-available water (PAW) increased at 10 and 20 cm depth but decreased at 5 cm depth. Air conductivity (k a) and saturated hydraulic conductivity (k s) decreased significantly at 5 and 10 cm depth. Soil precompression stress (P c) was lower in the uncompacted area: soil compaction increased P c by 60 kPa at 5 cm depth and by 30 kPa at 10 cm depth. Cohesion was greater in the compacted area than in the uncompacted area (mean difference 10 kPa). This study clearly indicates that soil compaction is a problem for grasslands.

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Section: Introductionmentioning

confidence: 97%