Neocolonialism or new prosperity?

from the Economist, a long article on China, Korea and the Gulf states investing in Africa and poor Asian countries, to grow crops for biofuel or food...

"...If you assume that the land, when developed, will yield roughly two tonnes of grain per hectare (which would be twice the African average but less than that of Europe, America and rich Asia), it would produce 30m-40m tonnes of cereals a year. That is a significant share of the world’s cereals trade of roughly 220m tonnes a year and would be more than enough to meet the appetite for grain imports in the Middle East....

China has set up 11 research stations in Africa to boost yields of staple crops. That is needed: sub-Saharan Africa spends much less than India on agricultural R&D. Even without new seed varieties or fancy drip-feed irrigation, investment should help farmers. One of the biggest constraints on African farming is the inability to borrow money for fertilisers. If new landlords just helped farmers get credit, it would make a big difference.

Yet a certain wariness ought to be maintained. Farming in Africa is hard. It breaks backs and the naive ambitions of outsiders. To judge by the scale of projects so far, the new investors seem to be pinning their hopes on creating technologically sophisticated large farms. These have worked well in Europe and the Americas. Paul Collier of Oxford University says Africa needs them too: “African peasant farming has fallen further and further behind the advancing commercial productivity frontier.”

But alas, the record of large farms in Africa has been poor. Those that have done best are now moving away from staple crops to higher-value things such as flowers and fruit. Mechanised farming schemes that grow staples have often ended with abandoned machinery rusting in the returning bush. Moreover, large farmers are often well-connected and spend more time lobbying for special favours than doing the hard work. ...
The deals produce losers as well as winners. Host governments usually claim that the land they are offering for sale or lease is vacant or owned by the state. That is not always true. “Empty” land often supports herders who graze animals on it. Land may be formally owned by the state but contain people who have farmed it for generations. Their customary rights are recognised locally, but often not accepted in law, or in the terms of a foreign-investment deal....