"Increasing organic farm production at a national level does not mean you can distribute to everyone," Nadia Scialabba, FAO environment officer and organic farming expert, told Reuters.
"The value of organic farming is the prevention of the unknown problems that come with intensification," she added, referring to recent food scares linked to industrial farming, such as mad cow disease and worries over GM crops.
Rich countries, such as the United States and those in the European Union, already produce substantial food surpluses. The problem lies in how to distribute food efficiently to the hungry, whether it is produced intensively or organically.
Some 800 million people around the world are severely under nourished. Three-quarters of the world's 1.2 billion people in abject poverty - surviving on less than a dollar a day - live in rural areas.
The U.N. admits that it is falling behind its target to halve global poverty and hunger by 2015. The FAO plans a world food summit in November to drum up the political will to achieve its goal.
An FAO document, made available to Reuters, said: "Conventional systems of production have generated high environmental costs in many cases, and their reliance upon externally supplied inputs creates barriers to access amongst the poorest segments of the population. "Organic agricultural production based upon cheap, locally available materials and technologies provides an important alternative in the search
for an environmentally sound and equitable solution to the problem of food security," it added.
WHAT IS ORGANIC FARMING?
Organic farming means using methods in tune with nature, enhancing the local eco-system, without adding synthetic substances such as chemical fertilisers and pesticides. Organic agriculture is growing fast, especially in Western Europe. The FAO estimates that around two percent of food retailed globally is organic.
FAO officials estimate that organic food production is increasing by at least 20 percent a year in Western Europe as consumers worried over highly publicised food scares seek guarantees of food safety.
Germany plans to boost the share of organic agriculture to 20 percent of its farmland from the current 2.6 percent within the next 10 years.
The FAO has no forecasts for global organic food production.
The FAO believes it is important for developing countries to certify organic food products so they can compete on international markets. "The extraordinary growing market of certified organic products offers
export opportunities to developing countries," said another FAO document. "Provided that producers of these countries are able to certify their products and access lucrative markets, returns from organic agriculture can potentially contribute to food security by increasing incomes," it added.
Scialabba said that governments need to invest in training farmers how to produce food organically.
While organic agriculture does not require expensive inputs, farmers need to follow strict practices in order to certify produce as organic.