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Solomon Mutua was a man in distress.On a 2-hectare plot of land on which he had planted French beans under irrigation last August,only dry stems remained.rnLocated in Wautu, a village in Makueni County in southeast Kenya, his farm has well-drained non-acidic soil, but the ever-erratic rains forced him to sink a borehole and purchase a water pump in 2018.