I keep getting “Biofertilisers” questions wrong in Microbes in Human Welfare. What's the trap?
assuming only chemical fertilisers can supply nitrogen.
The usual trap: assuming only chemical fertilisers can supply nitrogen. How to avoid it: some microbes are living fertilisers — they fix free nitrogen. Go back to the definition — living microbes like Rhizobium and cyanobacteria enrich soil naturally by fixing atmospheric nitrogen.
Key point
Biofertilisers
Common mistake
assuming only chemical fertilisers can supply nitrogen.
Memory tip
some microbes are living fertilisers — they fix free nitrogen.
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