The food supply has to rely even more on the potash etc that enhance crop yields .
This is not a short run problem .
Forty years ago, a giant development effort known as the Green Revolution drove hunger from an India synonymous with famine and want. Now, after a decade of neglect, this country is growing faster than its ability to produce more rice and wheat.
The problem has grown so dire that Prime Minister Manmohan Singh has called for a Second Green Revolution “so that the specter of food shortages is banished from the horizon once again.”
And while Mr. Singh worries about feeding the poor, India’s growing affluent population demands not only more food but also a greater variety.
Today Indian agriculture is a double tragedy. “Both in rice and wheat, India has a large untapped reservoir. It can make a major contribution to the world food crisis,” said M. S. Swaminathan, a plant geneticist who helped bring the Green Revolution to India.
India’s own people are paying as well. Farmers, most subsisting on small, rain-fed plots, are disproportionately poor, and inflation has soared past 11 percent, the highest in 13 years