Unit 4: Agriculture - Fertilisers

HideShow resource information
View mindmap
  • Fertilisers
    • Natural Fertilisers
      • Advantages
        • Gradual release of nutrients - one application lasts
        • Cheap - often wastes
        • Increase soil humus content
        • Provide food for soil biota
      • Disadvantage
        • Doesn't provide nutrients quickly
        • Bulky - hard to apply and transport
        • Cannot be applied during crop growth
        • Uncontrollable nutrient content
    • Artificial Fertilisers
      • Advantages
        • Controllable nutrient content
        • Fast-acting - as soon as applied
        • Easy mechanical application
      • Disadvantage
        • Doesn't add humus or provide food for biota
        • Can be toxic to soil biota
        • Expensive and energy-consuming to make
        • Can be leached, causing eutrophication
    • Macronutrient - nutrient needed in large amounts e.g. C, N, P
    • Micronutrient - nutrient needed in small amaounts e.g. Ca, K

Comments

No comments have yet been made

Similar Environmental Science/Studies resources:

See all Environmental Science/Studies resources »See all Agriculture resources »