"The slow growth of farm economics is a major challenge before the policy makers and the scientific community," she said in the foundation day lecture of the Indian Council of Agricultural Research here.
Talking about the pathways for accelerating growth of the farm sector, Patil said, "We must enhance productivity on a constant basis and bring about second green revolution, which along with agro-biotechnology can translate into an ever-green revolution in India."
For India, the President said, it is a challenge to feed a population of over one billion people.
Pointing out that per capita availability of resources is about four to six times less as compared to the world average, she said the availability is likely to further decrease due to demographic factors and pressures from the competing uses of land.
"But whatever the constraints, we have to provide food security for all as a national priority," Patil emphasised.