| Item | Conventional | Plug | |||||
| Small | Medium | Large | Small | Medium | Large | ||
| NonAuto | Auto | ||||||
| Variable Costs | |||||||
| Seedlings1 | $1.89 | $1.72 | $1.10 | $2.15 | $1.82 | $1.67 | $1.67 |
| Flat | 0.46 | 0.36 | 0.25 | 0.46 | 0.36 | 0.25 | 0.25 |
| Insert | 0.34 | 0.2 | 0.19 | 0.34 | 0.2 | 0.19 | 0.19 |
| Rooting Medium | 0.32 | 0.26 | 0.18 | 0.32 | 0.26 | 0.18 | 0.18 |
| Label | 0.08 | 0.06 | 0.05 | 0.08 | 0.06 | 0.05 | 0.05 |
| Fertilizer | 0.03 | 0.02 | 0.02 | 0.03 | 0.02 | 0.02 | 0.02 |
| Growth Regulator | 0.03 | 0.02 | 0.02 | 0.03 | 0.02 | 0.02 | 0.02 |
| Pesticide | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| Labor | 0.98 | 0.98 | 0.77 | 0.53 | 0.81 | 0.66 | 0.45 |
| Interest on Variable Costs | 0.19 | 0.16 | 0.12 | 0.18 | 0.16 | 0.14 | 0.13 |
| Total Variable Costs | $4.43 | $3.79 | $2.70 | $4.13 | $3.72 | $3.18 | $2.96 |
| Overhead Costs 2 | 4.14 | 2.98 | 2.94 | 3.5 | 2.52 | 2.48 | 2.48 |
| Loss Allocation 3 | 0.45 | 0.36 | 0.3 | 0.4 | 0.33 | 0.3 | 0.29 |
| Total Costs per Flat | $9.02 | $7.13 | $5.94 | $8.03 | $6.57 | $5.97 | $5.74 |
1 18 seedlings per finished flat.
2 Overhead costs are calculated at $0.194 per sq.ft. week
x 1.64 sq.ft. per flat x 13 wks. for conventional flats and 11 weeks for plug flats.
See Table A2 for more detail.
3 Based on 5% of total production.