Research Article

Determining Critical Soil pH for Grain Sorghum Production

Table 3

Results from quadratic least squares regression when evaluating the effect of soil pH on grain sorghum emergence, plant height, NDVI, and mortality (2009 and 2010).

DFMean square Prob

2009
Emergence20.215.370.00770.170.48

2010
Emergence20.1919.60<0.00010.440.54
Plant height21.0143.08<0.00010.630.62
NDVI20.92122.18<0.00010.830.78
Mortality220351.5935.42<0.00010.590.53