Agriculture Reference
In-Depth Information
(a)
(b)
(c)
0.4
CuAc
Acid
NH
4
Ox
CBD
12 days
0 days
6 days
0.3
Hypothetical profile
if no uptake
0.2
0.1
KCl
0.0
0
2
4
6
8
10
12
0
2
4
6
8
10
12
0
2
4
6
8
10
12
mm from root plane
Figure 6.22
Profiles of Zn fractions in anaerobic soil near a planar layer of rice roots after indicated times of root-soil contact. The dashed
lines are the hypothetical profiles if no Zn had been removed by the plants, estimated by interpolation of the lines beyond the depletion
zones. Corresponding profiles of Fe(II), Fe(III) and pH are in Figure 6.16 (Kirk and Bajita, 1995). Reproduced by permission of Blackwell
Publishing
