A 5‑ha field is sown with wheat. The farmer wants to use a nitrogenous fertilizer whose recommendation is 140 kg N per hectare. How many kilograms of this fertilizer should be applied to the whole field?
Answer
700 kg
The correct answer is 700 kg — Step 4: Conclude that 700 kg of fertilizer is required for the entire field.
Step-by-step solution
- Step 1: Determine the recommendation per hectare: 140 kg N/ha.
- Step 2: Multiply by the total area: 5 ha × 140 kg ha⁻¹.
- Step 3: Compute the product: 5 × 140 = 700 kg.
- Step 4: Conclude that 700 kg of fertilizer is required for the entire field.
Common mistake: Mixing up hectares with acres or forgetting to multiply by the total area
Concept tested: Fertilizer application calculation
Published · How this solution was prepared and checked
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