Facilitated transport of pesticides
TABLE 2.1.
SELECTED SOIL CHARACTERISTICS. MEAN VALUES WITH STANDARD DEVIATIONS IN ().
TABEL 2.1.
UDVALGTE KARAKTERISTIKA FOR JORD. MIDDELVÆRDIER MED STANDARDAFVIGELSER I ().
Property
Plot A
Plot B
Depth, cm
0-5
10-15
30-40
60-80
0-5
10-15
30-40
60-80
Clay,
<2 µm
0.111
(0.022)
0.122
(0.034)
0.151
(0.049)
0.113
(0.017)
0.128
(0.040)
0.220
(0.020)
Texture
kg kg-1
†
Silt,
2-50 µm
0.217
(0.029)
0.219
(0.046)
0.188
(0.029)
0.227
(0.028)
0.228
(0.054)
0.202
(0.028)
Sand,
50-2000
µm
0.672
(0.030)
0.659
(0.055)
0.661
(0.070)
0.660
(0.036)
0.644
(0.066)
0.578
(0.044)
Org. Matter,
kg/kg
0.030
0.016
0.010
0.032
0.010
0.008
Field capacity ‡,
m3/ m3
0.276
(0.016)
0.284
(0.024)
0.252
(0.008)
0.278
(0.017)
0.291
(0.027)
0.279
(0.021)
0.266
(0.010)
0.285
(0.016)
Bulk density §, kg/l
Autumn
1.26
(0.10)
1.47
(0.06)
1.67
(0.07)
1.69
(0.06)
1.32
(0.13)
1.41
(0.14)
1.66
(0.09)
1.70
(0.04)
Spring
1.35
(0.07)
1.51
(0.08)
1.40
(0.07)
1.48
(0.08)
†
Based either on n=45 (0-15 cm and 30-40 cm depth) or n=8 (60-80 cm depth)
samples.
‡
Equilibrium water content at 50 hPa tension (n=10 -18).
§
Determined from 10-18 samples. The plow layer was sampled early in
November 1999 (autumn) and in March 2000 (spring).
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