Soil fertility can be increased by
By altering the pH of soil
By altering air content of soil
By adding fertilizers to the soil
All of these
Soil fertility can be increased by altering the pH and air content of the soil and by the addition of fertilizers to the soil.
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
Which of the following crops can be grown to increase soil fertility?