QCAA Agricultural Science Enterprise management
5 sample questions with marking guides and sample answers
An excerpt from a financial statement for a wheat crop grown on 500 ha is shown.
| $/ha | |
|---|---|
| Income/ha | 704 |
| Wheat (3.2 t/ha at $220/t) | 704 |
| Total income ($/ha) | |
| Costs/ha | |
| Sowing | 58 |
| Permanent wages | 40 |
| Rates | 18 |
| Fertiliser | 210 |
| Herbicide | 42 |
| Insecticide | 12 |
| Contractors | 110 |
| Fuel | 18 |
| Total variable cost ($/ha) | |
| Total cost ($/ha) | |
| Gross margin ($/ha) |
Determine the total variable cost and gross margin for the crop.
| Total variable cost ($/ha) | Gross margin ($/ha) | |
|---|---|---|
| A | 508 | 196 |
| B | 468 | 236 |
| C | 450 | 254 |
| D | 472 | 232 |
Row A
Row B
Row C
Row D
When using the PPRR model, restocking after a drought is an example of
preparedness.
prevention.
response.
recovery.
The table shows the nutrient composition of four commercially available pig feeds.
| Nutrient | Feed A | Feed B | Feed C | Feed D |
|---|---|---|---|---|
| Crude protein (%) | 13.0 | 15.0 | 16.0 | 22.0 |
| Crude fat (%) | 2.0 | 2.5 | 2.0 | 3.5 |
| Crude fibre (%) | 6.0 | 8.5 | 5.0 | 3.3 |
| Digestible energy (MJ/kg) | 12.6 | 13.5 | 13.5 | 15.0 |
Determine the most suitable feed for pigs at the end of their production cycle for the domestic market. Justify your decision using data from the table.
The table shows the average weight gain of two groups of pigs recorded over 25 days and the total feed consumed. There were 10 pigs in each group.
| Group | Total feed consumed (kg) | Weight gained per pig (kg/day) | Feed conversion ratio |
|---|---|---|---|
| A | 830 | 3.0 | |
| B | 750 | 2.5 | 1.2 |
Calculate the feed conversion ratio for the pigs in group A. Show your working.
Draw a conclusion about which group of pigs is the most efficient at converting feed into meat. Justify your conclusion.
The table shows the results of an experiment that investigated the effect of two different fertilisers on the nodulation and yield of chickpeas.
| Number of nodules per plant | Grain yield (kg/pot) | |
|---|---|---|
| Control | 0 | 15.26 |
| Fertiliser A | 62 | 17.47 |
| Fertiliser B | 106 | 19.16 |
| Fertiliser A and B | 122 | 19.16 |
Contrast the effects of each fertiliser, in isolation or in combination, on each of the measured variables.
Draw a conclusion about which fertiliser maximises yield most efficiently when producing chickpeas. Justify your conclusion using evidence from the table.
The table shows Australian Breeding Values (ABVs) for production traits for four bulls.
| Bull | Birthweight (kg) | 200-day milk (L) | 200-day growth (kg) | Mature cow weight (kg) |
|---|---|---|---|---|
| A | ||||
| B | ||||
| C | ||||
| D |
Determine which bull should be purchased to improve milk production. Use evidence from the table to support your decision.