Table 1. Agronomic performance of corn as affected by tillage following soybean on Sebewa loam, Wanatah, IN*
(2005 results for surface residue cover and plant heights, plus yield mean for 2001-2005).
Tillage Treatment
Residue Cover
Plant Stand
4 weeks
Plant Height
4 weeks
Plant Height
8 weeks
Yield Mean
2001-05
 
%
Plants/a
in
in
Bu/a.
Chisel/disk/field cultivator
21 d+
29,700
8.0 b
54.6 a
199.3
Chisel/field cultivator
24 d
30,400
8.0 b
54.5 a
197.3
Fall Disk/field cultivator
41 c
31,200
8.3 a
54.3 a
203.6
Fall strip-till
64 b
30,400
7.9 b
53.6 a
202.1
No-till
92 a
30,000
7.0 c
43.5 b
197.1
+ Data followed by same letter are not significantly different with Student-Newman-Keuls Test (P=0.05).
* Data resulting from an ongoing experiment conducted by T.D. West, T.J. Vyn and G. Steinhardt at the Pinney-Purdue Agricultural Center.