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International Journal of Agronomy
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International Journal of Agronomy
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2012
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Article
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Tab 3
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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).
DF
Mean square
Prob
2009
Emergence
2
0.21
5.37
0.0077
0.17
0.48
2010
Emergence
2
0.19
19.60
<0.0001
0.44
0.54
Plant height
2
1.01
43.08
<0.0001
0.63
0.62
NDVI
2
0.92
122.18
<0.0001
0.83
0.78
Mortality
2
20351.59
35.42
<0.0001
0.59
0.53