Presents the results of investigations on the relative distribution of the various phosphorus forms, fixing capacity and status of some Ethiopian highland Vertisols.
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Library ResourceConference Papers & ReportsDecember, 1988Ethiopia, Africa, Eastern Africa
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Library ResourceConference Papers & ReportsDecember, 1988Ethiopia, Africa, Eastern Africa
Outlines an economic evaluation of an improved surface drainage technology, using the broad-bed-maker (BBM) on-farm in four different vertisol areas of the Ethiopian highlands. Presents data on crops and number of areas covered for the on-farm drainage technology, on cost structure of the BBM, and on human and oxen labour input in traditional seed covering and the construction of the BBM.
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