Applied and Environmental Soil Science / 2012 / Article / Tab 5

Research Article

Cadmium and Zinc Concentration in Grain of Durum Wheat in Relation to Phosphorus Fertilization, Crop Sequence and Tillage Management

Table 5

Grain Zn concentration (mg kg−1) and accumulation (g ha−1) of durum wheat as affected by tillage system, crop rotation, and P fertilization on at two sites over 3 years.

Grain Zn concentration (mg kg−1)Grain Zn accumulation (g ha−1)
BRC-NorthMZTRFBRC-NorthMZTRF
200120022003200120022003200120022003200120022003

Tillage
 Conventional38.026.623.735.637.025.368.282.465.9116.9119.374.6
 Reduced40.126.026.337.435.624.975.574.282.9120.9126.672.1
 LSD 1.9 1.3 2.5 1.8 2.31.54.76.513.95.98.96.4
Crop rotation
 wheat-flax-durum39.526.225.736.936.226.172.074.977.1119.6123.177.3
 Canola-flax-durum38.726.524.336.136.424.171.781.771.7118.3122.869.3
 LSD 1.9 1.3 2.5 1.8 2.31.54.76.513.95.98.96.4
P fertilization
 0-0-2537.927.424.938.035.725.671.982.376.1125.1118.174.8
 0-25-042.327.426.537.438.727.473.277.673.4123.0121.080.6
 25-0-2539.825.623.737.134.923.872.874.771.1119.4124.169.3
 25-25-039.426.926.735.737.026.172.282.979.3112.0122.574.7
 50-0-2537.925.023.435.734.323.071.473.571.8116.5121.168.4
 50-25-037.325.624.835.237.024.669.578.874.8117.6130.772.1
 LSD 3.3 2.2 4.3 3.1 4.1 2.6 8.211.324.110.315.411.2

Analysis of variance
SourceDFPr ≥ F
Tillage10.036n.s.0.0340.043n.s.n.s.0.0030.0140.018n.s.n.s.n.s.
Crop rotation1n.s.n.s.n.s.n.s.n.s.0.013n.s.0.042n.s.n.s.n.s.0.015
P fertilization50.034n.s.n.s.n.s.n.s.0.015n.s.n.s.n.s.n.s.n.s.n.s.

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