Azolla Boosts Soil Fertility of
ABarley
BMaize
CRice
DWheat
Answer:
C. Rice
Read Explanation:
The nitrogen-fixing capability of Azolla has led to it being widely used as a biofertiliser for increasing the productivity of rice fields. When rice paddies are flooded in the spring, they can be inoculated with Azolla, which then quickly multiplies to cover the water, suppressing weeds