Year

Cover

2002

2004

2006

2008

2010

2012

6-year

Tillage

Crop

Average

Treatment^#

Soybean Mg/ha

NT

yes

2.24a^*

0a

2.90a

3.10a

2.86a

2.87a

2.23a

NT

no

2.37a

0a

3.17a

2.84a

2.94a

2.65a

2.33a

CP

yes

1.78a

0a

2.84a

2.90a

2.53a

2.16a

2.04a

CP

no

2.07a

0a

3.37a

2.84a

2.79a

1.96a

2.17a

MP

yes

1.98a

0a

3.30a

3.04a

2.75a

1.71a

2.13a

MP

no

1.98a

0a

3.10a

3.04a

2.88a

1.82a

2.14a

Year

Cover

2001

2003

2005

2007

2009

2011

6-year

Tillage

Crop

Average

Treatment

Corn Mg/ha

NT

yes

9.53a

6.86a

11.40a

6.20a

12.33a

6.10a

9.10a

NT

no

9.93a

6.67a

11.44a

6.46a

13.13a

6.13a

9.41a

CP

yes

9.30a

7.13a

11.63a

6.73a

12.64a

7.03a

9.54a

CP

no

9.90a

7.33a

11.86a

6.80a

13.61a

6.85a

9.85a

MP

yes

10.2a

8.45a

12.04a

6.73a

13.97a

6.49a

9.64a

MP

no

10.4a

7.72a

11.42a

6.80a

14.03a

7.68b

9.76a