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3.2 Materials and methods
Vredepeel Kerlavic Thiverval-Grignon
Location The Netherlands France France
Lat: 51° 32' 29.” Lat: 48° 02' 59.0'' Long: Lat: 4° 50' 30 '' Long:
Long: 5° 52' 09.''E -4° 01' 18.2'' 2° 00' 0”
Soils Sandy soil Stagnic Luvisols Loamy soil
Gleypodzol Orthicluvisol
Experiments Profiles Lysimeter Micro lysimeter &
type profiles
Crop-rotation Winter wheat Winter wheat Maize
Mustard Winter wheat Maize
Sowing dates 1990/22/11 2002/10/29 1993/04/22
1991/09/15 2003/11/05 1994/03/05
Experimental Nov 1990-Mar 1992 Nov 2002-March 2004 April 1993-1994
Period
Tracer KBr: 111(kg/ha) Br:59,6 (kg/ha) Br:125(kg/ha)
application Br 61,5(kg/ha) Br: 225(kg/ha)
Pesticide Bentazone 0.8 (kg/ha) Isoproturon 1.25(kg/ha) Atrazine 1.00(kg/ha)
application Isoproturon 1.25(kg/ha) Atrazine 0.90(kg/ha)
Application 1990/09/22 2002/11/26 1993/04/22
date 2003/12/12 1994/05/03
Sampling 0.0-2.0 1.0 0.0-0.3
depth (m)
Sampling 22/42/104/214/253/25 Daily water, Monthly
dates 3/474 DAA 4-day accumulation for
solute
References 55 56 57
Table 3.1 – Description of sites. DAA stands for Day After Application
73