Trees growing on farms will be essential to future development.

A unique acacia known as a "fertilizer tree" has typically led to a doubling or tripling of maize yields in smallholder agriculture in Zambia and Malawi, according to evidence presented at a conference in the Hague today.

World renowned scientists speaking at the World Food Prize Borlaug Dialogue have called for a radical transformation in the agriculture sector to cope with climate change, food security and to transition towards sustainability.

Call for a Focus on Reducing Emissions from All Land Uses.

Scientists said today at the 2nd World Congress of Agroforestry that a type of acacia tree with an unusual growth habit-unlike virtually all other trees-holds particular promise for farmers in Africa as a free source of nitrogen for their soils that could last generations.