Vita Grain Group, which is backed by US $60 million of funding, owns more than 20 different strains of hybrid rice seeds. Vita Grain is looking for funding to expand its seed production beyond Africa to Asia, the US and South America. The company is also setting up a rice mill in Mauritius and is in talks with partners in Botswana, Madagascar and Mozambique to develop rice production units.

"They are selling off African land for a song," said Ndiogou Fall, president of the executive committee for the Network of Peasant Organizations and Producers in West Africa (ROPPA), which is calling for dialogue between governments, producers and African and foreign investors.

A focus on agricultural productivity should not become a cover for foreign private companies to grab land or impose expensive, input-intensive methods in the name of modernisation.