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Illinois Fertilizer Conference Proceedings
January 24-26, 1994

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Table 4: Effect of N source and starter fertilizer on P concentration in plants at the V-6 stage of growth. Ashton - 1993
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Source N Source
N P2O5 K2O Ammonia
preplant		 UAN
preplant		 Ammonia
sidedress		 Average
-------- lb/acre -------- ------------------ %P ------------------
0 0 0 .48 .46 .53 .48 AB
25 0 0 .48 .50 .50 .49 AB
0 30 0

.48

 .51 .51 .50 AB
25 30 0 .47 .50 .50 .49 AB
0 0 20 .48 .49 .52 .50 AB

25

 0 20 .48 .50 .51 .50 AB
0 30 20 .51 .48 .54 .51 A
25 30 20 .48 .48 .48 .48 B
Average .48 B1 .49 B .51 A  

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

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