Shankar is a tenant farmer from Lathur Block of Chengalpattu District. He cultivates watermelon on leased land every year in the Jan to Mar period.
Black Gram (Urad) is a good rotation crop between rice fallows. Nodules in the roots help in nitrogen fixation and replenishment of soil nitrogen.
Crops face a problem that humans see often. Some doctors prescribe branded drugs when generics are available at much lower rates.
The fall army worm is (was) native to the Americas shifting between North and South America based on weather.