With the latest in modern ...

With the latest in modern technology, we are already able to use variable rate seed planting and variable rate fertilizer application. Valmont has now introduced variable rate water application through center pivot technology. All this does entail detailed soil mapping of the coverage area. When all factors are considered, center pivot with the use of groundwater, is the single most efficient method of applying water; little evaporation, low maintenance. The only disadvantage is the point of diminishing returns. Current data suggets that approximately 60 hectares is the most efficient area covered which would mean some sort of shared use for smallhold farmers. A colleague of mine has worked out a smallhold farmer shared pivot scheme that will be introduced soon in Africa.