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← Nature & AnimalsWhich process limits sugarcane growth with depleted soils?
A)Impaired nitrogen fixation efficiency✓
B)Decreased photorespiration effectiveness
C)Increased stomatal closure frequency
D)Reduced xylem water transport
💡 Explanation
Sugarcane depends on symbiotic bacteria for nitrogen acquisition; impaired nitrogen fixation decreases available nitrogen, limiting biomass accumulation and stalk development because nitrogen enhances chlorophyll content, therefore productivity declines rather than improving with other mechanisms alone.
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