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Illinois Fertilizer Conference Proceedings
January 25-27, 1999

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Table 5. Effect of S application on wheat grain yield and S and N concentration, Brownstown - 1990.
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Sulfur
Rate
 
 
Flag Leaf
  
Grain Yield
S
N
N/S
lb/acre
------%-----
 
bu/acre
0 0.27 3.17 11.7 12.5
5 0.31 3.35 11.0 9.2
15 0.34 3.27 9.9 10.3
30 0.33 3.23 9.8 9.9
 
 
 
 
 
Source
df
---Mean Squares x 10-3-----
 df ---Mean Squares x 10-3-----
Block
3
 2.056 55.6 1313 blah 2 11758**
Rate
3
 3.273- 20.9 3261** 3 6198*
Linear
1
 6.431- 0.1 7680** 1 3853
Quadratic
1
 3.345 blah 23.7 2029 blah 1 4152 blah
Residual
1
 0.043 39.0 73 1 10589*
Error
9
 0.7674 38.97 447.5 6 1110.5

*,**,† Significant at the 0.05, 0.01, and 0.10 probabality levels respectively.

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