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Agricultural Science

Crop Production

Key Points

  • Legumes fix atmospheric nitrogen (cowpea, groundnut, soybean)
  • Land prep: clearing → ploughing → harrowing → ridging → planting
  • Organic fertilisers improve soil structure; inorganic provide quick nutrients
  • NPK fertiliser: N (nitrogen), P (phosphorus), K (potassium)
  • Crop rotation prevents build-up of pests and diseases

Practice Questions

2 questions
1

Which of the following crops is capable of fixing atmospheric nitrogen?

2

The recommended spacing for maize cultivation is approximately:

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