date:Dec 21, 2012
and India are witnessing especially concerning stagnation or decline in yield.
This study clearly delineates areas where yields for important food crops are stagnating, declining, or never improved, as well areas where yields are still rapidly improving, Ray says. As a result, it both sounds the alert for where we must shift our course if we are to feed a growing population in the decades to come, and points to positive examples to emulate.
Interestingly, the researchers found that yields of