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applied without liming (Figure 2). Application of 30 kg N ha -1 reduced grain P uptake by an
overall average of 14% in comparison to treatments where N was not applied (Figure 2).
In the first season, liming improved stover P uptake by an overall average 20%.
Increasing P fertilizer rate had no effect on stover P uptake in treatments where lime had not
been applied (Figure 3A and 3C). In the limed plots, the application of 7.5 kg P ha -1 did not
improve uptake compared to the control, while application of 15 kg P ha -1 improved P uptake
but a further increase had no effect (Figure 5B).
- LIM E
+ LIME
Grain (2002-3 Season)
Grain (2003-4 Season)
10
10
8
8
lsd = 0.58
6
6
lsd = 0.52
4
4
2
2
0
0
Magoye
Safari
Solitare
Storm
Magoye
Safari
Solitare
Storm
Stover (2002-3 Season)
Stover (2003-4 Season)
10
10
8
8
lsd = 1.22
6
6
lsd = 0.14
4
4
2
2
0
0
Magoye
Safari
Solitare
Storm
Magoye
Safari
Solitare
Storm
Variety
Variety
Figure 1. Effect of soil acidity and liming on grain and stover yield of selected soybean cultivars. (Error
bars represent least significant difference of means at 95% confidence).
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