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Kenyan analytical Chemist Peter Chege has started an age old method of planting on water, for the first time in his country. He plants vegetables and fodder for his livestock without soil. The method is called hydroponics. Chege has made money selling vegetables grown this way. He is also teaching those interested at a fee. At a corner of his farm in central Kenya, Chege watches as his piglets scramble for a meal of freshly harvested barley.