Table 6: Correlation between nutrients (macro and micro) concentration and yield for ten corn cultivars representing five different technological levels, harvesting in 2006 and 2007, at Rolandia County, Paraná State, Brazil.

2005/06YieldCNPKCaMgCuFeMn

C−0.18
N−0.280.10
P−0.140.070.18
K−0.260.050.020.76**
Ca0.120.110.280.13−0.03
Mg0.080.040.110.85**0.55**0.21
Cu0.120.230.13−0.05−0.180.270.01
Fe0.110.140.120.210.060.53**0.320.38
Mn0.150.100.280.270.020.370.43*0.54**0.55**
Zn0.370.040.020.250.090.270.320.66**0.44*0.68**

2007YieldCNPKCaMgCuFeMn

C0.04
N−0.69**0.29
P0.190.320.08
K0.090.300.100.87**
Ca0.05−0.050.190.130.17
Mg0.060.04−0.010.58**0.51**0.28
Cu0.04−0.08−0.09−0.03−0.07−0.110.33
Fe−0.120.11−0.010.300.210.52**0.350.29
Mn−0.150.210.150.160.08−0.300.300.090.58**
Zn0.030.020.240.210.260.51**0.14−0.01−0.39−0.15

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