Illinois Fertilizer Conference Proceedings
January 24-26, 2000
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Table 4. Recovery of N applied as ammonium sulfate and DAP in the fall
of 1997 as inorganic and organic N in the spring of 1998.
Loc
N Source
N lb/acre
40
80
160
240
Inorg
Org
Inorg
Org
Inorg
Org
Inorg
Org
N lb/acre
2822
DAP
11
7
3827
DAP
17
5
1833
AS
26
2
57
19
96
21
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