Potash plumps up fruit, vegetables and grains, yet India is completely dependent on imports of this critical fertiliser to feed its populaiton - Justin Rowlatt investigates. Show more
Discover 11,128,835 listings and 280,208 playable programmes from the BBC
Potash plumps up fruit, vegetables and grains, yet India is completely dependent on imports of this critical fertiliser to feed its populaiton - Justin Rowlatt investigates. Show more