Waec Model Questions Vol1 2017 Agricultural Science Question 5
Practice essay / theory question 5 from the 2017 Waec Model Questions Vol1 Agricultural Science examination. This question covers Fertilizer recommendation, Seed rate calculation, Yield estimation, Water deficit impact .
A farmer intends to cultivate maize on a 2.0‑hectare field that has a soil test indicating available nitrogen (N) of 15 kg ha⁻¹, phosphorus (P) of 8 kg ha⁻¹ and potassium (K) of 12 kg ha⁻¹. The recommended nutrient rates for optimum maize yield are 120 kg N, 60 kg P₂O₅ and 80 kg K₂O per hectare. The seed rate recommended for the variety is 25 kg ha⁻¹. The farmer expects a rainfall of 450 mm, while the crop water requirement for optimum yield is 550 mm. The expected yield under optimum moisture is 6 t ha⁻¹, and each 10 mm shortfall in water reduces yield by 0.3 t ha⁻¹.
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This is Waec Model Questions Vol1 2017 Agricultural Science Question 5. It is one of the essay questions from the 2017 Waec Model Questions Vol1 Agricultural Science examination.
The question covers Fertilizer recommendation, Seed rate calculation, Yield estimation, Water deficit impact .
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