Treatments

Conv.

Tillage

Direct

Sowing

DMC/B. ruz

DMC/B. ruz + M. coch.

DMC/C. Juncea

F

P (0.05)

2010

Maize straw

5444 a

4786 a

4684 a

4257 a

4467 a

2.023

0.150 (ns)

Cover crops

-

-

2450 a

2751 a

1616 b

8.577

0.010 (s)

2012

Maize straw

5230 a

4948 a

5148 a

4443 a

4473 a

0.329

0.854 (ns)

Cover crops

-

-

1788 a

1196 a

1497 a

1.369

0.308 (ns)

2014

Maize straw

6510 a

5729 a

5313 a

5104 a

5260 a

2.688

0.078 (ns)

Cover crops

-

-

3917 a

2733 b

1433 c

33.889

0.000 (s)

2016

Maize straw

5136 a

4157 ab

3755 b

3022 b

3788 b

3.801

0.029 (s)

Cover crops

-

-

2481 a

3521 a

2009 a

2.322

0.160 (ns)

2018

Maize straw

4897 a

4311 a

4522 a

4458 a

4347 a

0.433

0.782 (ns)

Cover crops

-

-

2695 ab

3808 a

1712 b

9.112

0.009 (s)

Average

Maize straw

5497 a

4746 ab

4568 b

4210 b

4466 b

3.425

0.040 (s)

Cover crops

-

-

2666 a

2802 a

1654 b

14.435

0.002 (s)