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Illinois Fertilizer Conference Proceedings
January 24-26, 1994

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Table 8: Effect of N source and starter fertilizer on P concentration at V-6. Gridley - 1993
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Source N Source
N P2O5 K2O Ammonia
preplant		 UAN
preplant		 Ammonia
sidedress		 Average
-------- lb/acre -------- ------------------ %P ------------------
0 0 0 .41 .45 .37 .41 C
25 0 0 .42 .44 .39 .42 BC
0 30 0

.42

 .45 .40 .43 B
25 30 0 .43 .45 .42 .43 B
0 0 20 .42 .47 .40 .43 B

25

 0 20 .43 .46 .42 .44 B
0 30 20 .43 .44 .40 .42 BC
25 30 20 .44 .48 .46 .46 A
Average .42 B1 .46 A .41 B  

1Average values followed by the same letter in the row or column are not significantly different.

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