Innovative mechanisation and a robust market in crop residues may just be the best ways of discouraging farmers in Haryana and Punjab from burning residues in their fields after a harvest, adding to air pollution in New Delhi and other northern cities in the run-up to winter.
If the residues could be collected and used as fodder or fuel or put back into the fields as mulch, farmers would be incentivised not to burn them as they prepare their fields for sowing the next crop.
Removing the leftover stalks of a crop of rice or wheat after a. . .
