2005

2006

2007

2008

2009

Harvest system

L

L

L

U

L/U

L/U

Control

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16

1

12

8

13

20

16

22

2

21

18

17

28

20

27

3

20

23

16

32

22

29

LSD (0.05)

2

2

0.6

3

3

2