Treatment | Control (C) | Direct Drill (DD) | Disc (DPH) | P. Harrow (PH) | Plough (PLO) | Diquat (DIQ) | SED | Sig |
Total DM yield ‘09 | 9781 | 9233 | 10,395 | 10,191 | 8949 | 9567 | 512.7 | NS |
Total DM yield ‘10 | 10,001 | 11,308 | 12,586 | 12,040 | 12,674 | 11,564 | 844.2 | P = 0.08 |
Spr. DM yield ‘10 | 1740 | 1945 | 2299 | 2278 | 2444 | 1613 | 305.4 | NS |
Spr. DM yield ‘11 | 1328a | 2166b | 2016b | 1990b | 1949b | 1908b | 155.0 | P < 0.01 |
Sum. DM yield ‘09 | 6286a | 5211b | 6311a | 5875ab | 5186b | 5509ab | 382.8 | P < 0.05 |
Sum. DM yield ‘10 | 4980 | 5631 | 6103 | 5613 | 5958 | 6118 | 415.3 | NS |
Aut. DM yield ‘09 | 1616 | 2142 | 2205 | 2437 | 1883 | 2179 | 340.1 | NS |
Aut. DM yield ‘10 | 3281a | 3733ab | 4184b | 4149b | 4272b | 3833a | 283.1 | P < 0.05 |
PRG tillers/m2 ‘09 | 1450a | 5150b | 3550c | 3600c | 5250b | 2300a | 412.8 | P < 0.001 |
PRG tillers/m2 ‘10 | 1050a | 4700b | 5500c | 5550c | 4700b | 3950d | 269.3 | P < 0.001 |
Total tillers/m2 ‘09 | 6400a | 6350a | 5250b | 6800a | 5700b | 6700a | 287.5 | P < 0.001 |
Total tillers/m2 ‘10 | 8300 | 6000 | 6850 | 7550 | 6650 | 6900 | 880.4 | NS |