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← HistoryIn the Three Sisters farming system, which outcome arises from interplanting maize with beans utilizing bacterial nitrogen fixation?
A)Nitrogen availability in the soil increases✓
B)Maize susceptibility towards blight increases
C)Stalk lodging in maize increases sharply
D)Soil carbonate concentration decreases mildly
💡 Explanation
Increased nitrogen occurs because beans, via symbiotic *nitrogen fixation*, convert atmospheric nitrogen into usable forms, therefore nitrogen availability to maize increases, rather than causing blight or staking issues because nitrogen is directly consumed by the maize crops.
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