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Card 6
Front
Why are fertilisers used sparingly?
Back
Card 7
Front
Describe the effect that adding fertiliser has on crop yield.
Back
Card 8
Front
What is the economic optimum?
Back
Card 9
Front
Describe the eutrophication process.
Back
Card 10
Front
What are the advantages of using manure instead of fertilisers?
Back
Card 11
Front
What are the disadvantages of using manure instead of fertilisers?
Back
Card 12
Front
What do pesticides include?
Back
Card 13
Front
What is a broad-spectrum pesticide?
Back
Card 14
Front
How are pests becoming resistant to pesticides?
Back
Card 15
Front
What is a problem with pesticides?
Back
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