COVER CROPS in South African Vineyards

COVER CROPS IN SOUTH AFRICAN VINEYARDS

TABLE 4.2. Different implements used in planting cover crops. Adapted from Fourie and Ochse (2002). Treatment Action and implements used Date applied

Incorporate plant residues with a disc harrow. Prepare seedbed with a disc harrow. Cover the seeds with a disc harrow.

3 March 15 April 15 April 15 April 15 April 3 March 15 April 15 April 15 April 15 April 3 March 15 April 15 April 15 April 15 April

1

Prepare seedbed with a disc harrow. Cover the seeds with a disc harrow.

2

Incorporate the plant residues with a disc harrow. Prepare seedbed with a disc harrow. Covering the seeds with a cultivator.

3

Prepare seedbed with a disc harrow. Covering seeds with a cultivator.

4

Incorporate the plant residues with a disc harrow. Prepare seedbed with a rotary harrow. Cover the seeds with a rotary harrow.

5

Prepare seedbed with a rotary harrow. Cover the seeds with a rotary harrow.

6

ation duction

100

6,00

90

5,00

80

70

4,00

60

50

3,00 % seed germination Dry-matter production

40

2,00

30

20

Percentage seed germination

1,00

10

Dry-matter production in tonnes per hectare

0

0,00

1 2 3 4 5 6

1 2 3 4 5 6

1 2 3 4 5 6

Grazing vetch

Paraggio bur medic

Rye

FIGURE 4.8. Dry-matter production and percentage seed germination obtained with six different treatments in three cover crops. Adapted from Fourie and Ochse (2002).

89