Table 1: Soil characteristics of the experimental sites prior to initiation of the study.

Soil propertySoil depth (cm)BRC NorthMZTRF
2001*20022003200120022003

pH0–157.828.377.838.437.877.54
15–308.177.71
30–608.437.95
EC (μS cm−1)0–15290289603261293585
15–30218290537228228495
30–60299419560226276523
N (mg kg−1)0–158.343.782.507.924.197.50
15–303.312.562.753.422.033.19
30–602.413.561.172.921.811.81
P (mg kg−1)0–1512.5311.636.759.3611.349.94
K (mg kg−1)0–152672022599.36298290
DTPA-Cd (μg kg−1)0–15102.673.372.089.6134.8103.6
DTPA-Zn (mg kg−1)0–150.770.600.801.011.081.20

*Soil samples were taken in the first phase of the study, prior to seeding the preceding canola and wheat.