The ratio of land required by pure crop to produce the same yield as that of intercrop is known as

Correct option is A

✅ (a) LER
· Land Equivalent Ratio (LER) indicates the efficiency of intercropping systems.
· LER > 1 signifies yield advantage in intercropping compared to monoculture.
· LER = (Yield of crop A in intercropping / Yield of crop A in sole cropping) + (Yield of crop B in intercropping / Yield of crop B in sole cropping).
❌ (b) MCI
· MCI (Monetary Crop Index) measures economic returns, not land-use efficiency.
· Incorrect term for yield comparison.
❌ (c) CEY
· CEY (Cereal Equivalent Yield) converts intercrop yields into equivalent yields of a major cereal crop.
· Different from LER.
❌ (d) CLUI
· CLUI (Crop Land Utilization Index) measures time-wise utilization of land, not yield efficiency.