A move by farmers in developing countries to ecological agriculture, away from chemical fertilisers and pesticides, could double food production within a decade, a UN report says.
Insect-trapping plants in Kenya and ducks eating weeds in Bangladesh's rice paddies are among examples of recommendations for feeding the world's 7 million people, which the UN says will become about 9 billion by 2050.
rganic farming technique - simple insect trap
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"Agriculture is at a crossroads," says the study by Olivier de Schutter, the UN special reporter on the right to food, in a drive to depress record food prices and avoid the costly oil-dependent model of industrial farming.
So far, eco-farming projects in 57 nations demonstrated average crop yield gains of 80 per cent by tapping natural methods for enhancing soil and protecting against pests, it says.
Recent projects in 20 African countries resulted in a doubling of crop yields within three to 10 years. Those lessons could be widely mimicked elsewhere, it adds.
"Sound ecological farming can signficantly boost production and in the long term be more effective than conventional farming," De Schutter said of steps such as more use of natural compost or high-canopy trees to shade coffee groves.
It is also believed "agroecology" could make farms more resilient to extreme weather conditions associated with climate change, including floods, droughts and a rise in sea levels that the report said was already making fresh water near some coasts too salty for use in irrigation.
Benefits would be greatest in "regions where too few efforts have been put in to agriculture, particularly sub-Saharan Africa," he said. "There are also a number of very promising experiences in parts of Latin America and parts of Asia."The cost of food production has been very closely following the cost of oil," he said.
Upheavals in Egypt and Tunisia have been partly linked to discontent at soaring food prices. Oil prices were around $115 a barrel on Tuesday.
"If food prices are not kept under control and populations are unable to feed themselves ... we will increasingly have states being disrupted and failed states developing," De Schutter said.
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