Table 2: Grain Nitrogen Composition and Uptake of N in the Grain as Affected by N Fertilizer Sources, Placement, Timing, and Agrotain at Dixon Springs in 1995

Illinois Fertilizer Conference Proceedings
January 27-29, 1997

Main Index 1997 Index Search

Treatment	Grain N (%)	Uptake of N in Grain (lbs N/Ac)	Grain N (%)	Uptake of N in Grain (lbs N/Ac)
	Corn-Corn Rotation²		Corn-Soybean Rotation²
Dry N Sources
Urea	1.27 a	71.2 b	1.27 a	61.3 de
Urea + Agrotain	1.20 a	72.7 b	1.47 a	94.6 a
Ammonium Nitrate	1.18 a	77.2 b	1.20 a	89.1 abc
Liquid N:
UAN (B'Cast)	1.21 a	69.8 b	1.35 a	79.6 a-d
UAN + Agrotain (B'Cast)	1.28 a	72.6 b	1.34 a	89.8 abc
UAN (Dribble)	1.18 a	72.4 b	1.07 a	69.7 cd
UAN + Agrotain (Dribble)	1.22 a	77.7 b	1.15 a	83.1 abc
Inject:
UAN	1.23 a	74.6 b	1.14 a	72.3 bcd
Anhy Ammonia	1.47 a	97.8 a	1.28 a	92.6 ab
Split (W & F + Sidedress):
UAN (Dribble)	1.17 a	71.1 b	1.14 a	70.0 cd
UAN + Agrotain (Dribble)	1.24 a	78.3 b	1.13 a	76.3 a-d
UAN (Inject)	1.22 a	78.3 b	1.15 a	79.3 a-d
Control (O-N)	1.34 a	45.2 c	1.21 a	43.4 e
Overall Comparison of Agrotain Applied to all Fertilizers
Without Agrotain	1.21 a	71.1 b	1.21 a	70.2 b
With Agrotain	1.24 a	75.3 a	1.27 a	85.9 a

¹Means within columns followed by letters in common are not significantly different at the 10 percent level of significance

²Nitrogen Application Rate:
Corn-Corn Rotation = 180 lb N/Ac
Corn-Soybean Rotation = 140 lb N/Ac