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). |
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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. |
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