Table 1.  Comparison of a shank-till drill and a row crop planter on corn yield and other agronomic parameters.
Treatment	Grain	Grain
Name	Yield	Moist.	STDEV	Population
	bu/ac	%		plants/ac
Shank-Till Air Seeder	198.5	24.6	5.95	33524
Row Crop Planter	218.3	25.0	1.96	33631
Mean	208.4	24.8	3.95	33577
LSD.05	8.2	NS	0.83	NS
CV %	9.5	5.0	50.9	12.7
Figure 1.  The effect of STDEV on corn yield when planted with a shank-till				Figure 3.  The effect of STDEV on corn yield when planted with a row crop
air drill at the Oakes Irrigation Research Site in 2008.				planter at the Oakes Irrigation Research Site in 2008.
Figure 2.  The effect of population on corn yield when planted with a				Figure 4.  The effect of population on corn yield when planted with a row
shank-till air drill at the Oakes Irrigation Research Site in 2008.				crop planter at the Oakes Irrigation Research Site in 2008.
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