Question

What happens when we inoculate rhizobium in wheat field?

a)No increase in production (nitrogen content of soil remains the same)

b)A lot of increase in the production (nitrogen content of soil increase)

c)fertility of soil decrease

d) fertility of soil increase

Answer 1

Rhizobium is microaerobic rod-shaped bacteria, which increases soil fertility by fixing atmospheric nitrogen in root nodules of legumes. If Rhizobium is inoculated in the wheat field, they won't be able to infect wheat plants and form root nodules as wheat is not a leguminous plant. Consequently, soil fertility will not change. Thus, the correct answer is option A.