Corn, Soybean, Wheat and Alfalfa Field Guide, Bulletin 827, NITROGEN - CORN BASED ON YIELD POTENTIAL & PREVIOUS CROP.

Previous Crop	N Credits	80	100	120	140	160	180+
		Corn yield potential (bu/acre)
	# of N	pounds N to apply per acre
Corn, small grains	0	80	110	140	160	190	220
Soybeans	30	50	80	110	130	160	190
Grass sod	40	40	70	100	120	150	180
Established forage legume
Average stand (3 plants/ft²)	b	0	10	40	60	90	120
Good stand (5 plants/ft²)	b	0	0	0	20	50	80
Annual legume cover crop	30	50	80	110	130	160	190

^a N fertilizer rates are based on the following relationship:

^b N credits for established forage legume = 40 + 20 x (plants/ft²) to maximum of 140.

NITROGEN RECOMMENDATIONS a FOR CORN BASED ON YIELD POTENTIAL & PREVIOUS CROP.