Give four variable costs in maize production. A farmer has the following yield from a two hectare millet crop enterprise at Oluch irrigation schemes. Study it and prepare his gross margin. is it profitable to grow millet? He spent the following in his operations

• Weed: $800/=$
• Seeds:
  • Seeds needed: $20 \text{ kg/ha} \times 2 \text{ ha} = 40 \text{ kg}$
  • Number of $10 \text{ kg}$ bags: $\frac{40 \text{ kg}}{10 \text{ kg/bag}} = 4 \text{ bags}$
  • Cost of seeds: $4 \text{ bags} \times 300 \text{ /=/bag} = 1200/=$
• Irrigation: $600 \text{ /=/ha} \times 2 \text{ ha} = 1200/=$
• Ploughing: $500 \text{ /=/ha} \times 2 \text{ ha} = 1000/=$
• Clearing the land: $1200/=$
• Planting: $400 \text{ /=/ha} \times 2 \text{ ha} = 800/=$
• Harvesting: $1200 \text{ /=/ha} \times 2 \text{ ha} = 2400/=$
• DAP fertilizer: $2 \text{ bags} \times 10000 \text{ /=/bag} = 20000/=$
• CAN fertilizer: $2 \text{ bags} \times 700 \text{ /=/bag} = 1400/=$
• Gunny bags: $32 \text{ bags} \times 40 \text{ /=/bag} = 1280/=$
• Transport to market: $2000/=$

The formula for Gross Margin is:

The selling price per bag for millet is not provided in the given information.

Since the selling price per bag is missing, the total revenue cannot be calculated. Therefore, the gross margin and the profitability of growing millet cannot be determined from the given data.