Evaluation of effects of penac-p
with summer barley

 

Block:
15 x 3m 4 repetitions at random with buffer zone to avoid mutual influence.

Cultivar:
Chariot (brewers Barley)

Sowing:
15 April 1996 Harvest: 24 Aug. 1996

Seed amount:
350 seeds per mē

Nitrogen Application Total:
80kg N/ha (mineral)

Soil:
pH: 6,4 - P
2O5: 17mg - K2O: 35mg - MgO: 9mg

 

Conduction of trial:
penac-p application: one node stage (EC 30/31) and at ear emergance (EC 39/49) at a rate of 200g per hectare.

Results:

Variations

Control

only penac-p

penac-p and reduced fungicide

penac-p and full fungicide

Yield (dt)

56.4

59.5

59.1

59.0

Yield (% of control block)

100.0

105.4

104.8

104.6

Total barley (%)

93.5

96.5

96.0

96.5

Protein (%)

10.9

10.4

10.5

10.5

Dry Weight

40.2

43.6

43.8

hl- weight

64.2

72.4

71.8

Costs and Yields (1R=DM0.28)

Variation

Control

penac-p only

penac-p and reduced fungicide

penac-p and full fungicide

Fungicide ha

-

-

R155.36

R517.86

penac-p ha

-

R70.00

R70.00

R70.00

Sum costs ha

-

R70.00

R225.36

R587.86

Yield

R201.43

R212.50

R211.07

R210.70

Total barley

R188.22

R205.00

R202.50

203.20

Profit

R4893.57

R5330.00

R5265.00

R5283.57

Net Profit

R4893.57

R5260.00

R5039.64

R4695.71

Highest profit with penac only