Multiple Choice
Two farmers grow identical crops on adjacent land. One uses a traditional chemical fertiliser regime to maximise his agricultural output, whereas the other uses microorganic bio-fertilisers and crop rotation to minimise his use of chemical fertilisers. The first farmer who uses a traditional chemical fertiliser regime initially has higher yields with less effort, but over time his yields start to drop and continue to do so while the second farmer maintains a consistent output. What might be causing the drop in yield for the first farmer?
A) Soil acidification
B) Soil erosion
C) Sodic soils
D) Soil alkalinity
E) Ion toxicity
Correct Answer:

Verified
Correct Answer:
Verified
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