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Table 1 Details of the studies under investigation; n.a.: not available; n.ap.: not applicable

From: Consideration of risk management practices in regulatory risk assessments: evaluation of field trials with micro-dams to reduce pesticide transport via surface runoff and soil erosion

 

Potatoes

Maize

Olivier et al. [29]

Goffart et al. [21]a

Aurbacher et al. [6]b

Areas [3]

Areas [4]

CIPF [7]

UCL [41]

2009

2010

Device

Barbutte

Barbutte

Self-developed prototypes

Prototypes (Grimme)

Disc and drum plough

Disc and drum plough

Soil type

Sandy loam

Various, up to 28% sand

Silty “loess soils”

Silt loam

Loam

Sandy loam

n.a.

Irrigation

No

No

Yes

Yes

Yes

No

No

Micro-dam height (cm)

10–17

10–17

20–27

≈ 5

13

Several cm

Distance between the micro-dams (m)

1.5

1.6

1.5–8

1.6

1.5

Several cm

Plot length/area

30 m

30 m

Unknown

≈ 5 m

Unknown

72 m2

75 m2

Slope (%)

> 3

< 3 and > 3

2–10

< 3

< 4

9, 16

10–12

Plant protection product(s) applied?

Yes, n = 4

Yes, n = 5

No

No

No

Yes, n = 4

Yes, n = 1

  1. The studies of Olivier et al. [29] and CIPF [7] were newly designed and more detailed results were available for evaluation by the authors
  2. aAll information given as mean of 5 trials over 2 years, consisting of trials both with slope < 3% and > 3%
  3. bMean values over 35 trials reported only