Mention any two examples where the organisms involved are commercially exploited in agriculture.
Answers
Examples of the organisms involved that are commercially exploited in agriculture are as follows:
(i) Commercial exploitation of Rhizobium in agriculture
Continuous growth of crops leads to the nutrient deficiency in soil. Farmers, then, grow leguminous crops containing Rhizobium in its roots to replenish the lost nutrients (especially nitrogen) in the soil.
(ii) Commercial exploitation of Mycorrhiza in agriculture
Mycorrhiza is an association of the soil fungus with the roots of higher plants. Farmers use Mycorrhiza commercially in agriculture as it improves the soil quality and reduces soil erosion by improving plant rooting capacity. The fungal hyphae spread into the root tissues and help the plants to optimally use the soil's water and minerals.
Thus, to increase the yield of plants and to replenish the soil nutrients, Mycorrhiza is commercially exploited in agriculture.