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 m²

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

Soil:
pH: 6,4 - P2O5: 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