Neco 2020 Geography Question 41

A farmer plans to produce \(12\) tonnes of maize. The average yield in his region is \(5\) tonnes per hectare. The recommended seed rate is \(25\) kg per hectare. He currently has \(200\) kg of certified seed. (a) Calculate the minimum area (in hectares) he must cultivate to meet the production target. (b) Determine whether his seed stock is sufficient for that area, and if not, how many additional kilograms of seed are required. (c) He intends to apply nitrogen fertilizer at a rate of \(120\) kg N per hectare. He will use urea (\(46\%\) N) and ammonium nitrate (\(33\%\) N) in a ratio of \(3:2\) by weight. Calculate the total weight of fertilizer mixture required for the cultivated area, and state how many kilograms of each fertilizer type are needed.