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

1328^a

2166^b

2016^b

1990^b

1949^b

1908^b

155.0

P < 0.01

Sum. DM yield ‘09

6286^a

5211^b

6311^a

5875^ab

5186^b

5509^ab

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

3281^a

3733^ab

4184^b

4149^b

4272^b

3833^a

283.1

P < 0.05

PRG tillers/m² ‘09

1450^a

5150^b

3550^c

3600^c

5250^b

2300^a

412.8

P < 0.001

PRG tillers/m² ‘10

1050^a

4700^b

5500^c

5550^c

4700^b

3950^d

269.3

P < 0.001

Total tillers/m² ‘09

6400^a

6350^a

5250^b

6800^a

5700^b

6700^a

287.5

P < 0.001

Total tillers/m² ‘10

8300

6000

6850

7550

6650

6900

880.4

NS