Oakes Irrigation Research Site
Carrington Research Extension Center * North Dakota State University
P.O. Box 531, Oakes, ND 58474-0531, Phone: (701) 742-2744, FAX: (701) 742-2700, E-mail:							Walter.Albus@ndsu.edu
Table 1.  Strip-till, corn on soybean, nitrogen rate study at the Oakes Irrigation Research Site in 2012.
							Soil Nitrate-N	Return to4
Fertilizer3	Grain	Harvest	Test	Chlorophyll Meter		Stalk	Fall	N Above
N Rate	Yield1	Moisture	Weight	6-Aug	21-Aug	Nitrate-N	2012	Low N Rate
lb/ac	bu/ac	%	lb/bu			ppm	lb/ac	$
25	146.0	14.8	57.4	22.5	12.1	29	8	$861
100d3	220.5	15.4	59.6	49.3	35.7	7	13	$1,263
100	223.4	15.2	59.4	46.2	34.8	3	11	$1,281
150	249.9	15.7	59.8	52.2	43.9	7	11	$1,410
200	262.1	16.3	59.5	55.0	51.2	137	26	$1,453
Mean	220.4	15.5	59.1	45.0	35.5	36.6	13.8	$1,253
CV%	3.3	1.7	0.8	5.1	7.5	45.9	26.9
LSD.05	11.1	0.4	0.7	3.6	4.1	25.9	5.7
1Yield adjusted to 15.5% moisture.
245 lb N /ac of planting N applied as dribble treatment to the side of the row.
365 lb N/ac with pre-planting strip-till and or at planting. The remainder N sidedressed on June 5,
except for the 25 lb N/ac rate which was all applied pre planting strip-till and planting.
4Corn @$6.00/bu, N @ $.60/lb.
Detailed material and methods
Oakes Irrigation Research Site
Variety trials		Crop index		Home page		Report 2012
Other corn Studies 2012
Corn hybrid performance trial dryland
Corn hybrid performance trial irrigated
Corn row width hybrid study
Stover removal corn corn rotation
Stover removal corn soybean rotation
Strip-tilled corn N rate corn corn rotation