Increasing food production through intensive farming will not necessarily end world hunger, experts said Thursday — a finding that flies in the face of established policy.

The United Nations has said countries must double the productivity and incomes of small-scale food producers by 2030 to eliminate hunger and ensure all people have access to food.

"The underlying assumption is that this creates food security on one hand and also improves the livelihoods of smallholders, but we really need to question that," said Adrian Martin, a professor at Britain's University of East Anglia.