The winding dirt road that goes down to this southeast part of the province of Salta in Northern Argentina, is for many hours drive one of native grasses and rugged bush degraded by overgrazing. Suddenly, like an oasis, there appears an open field with corn and soybean under ground drip irrigation, reaching yields similar to those of the rich Pampas closer to Buenos Aires. Bradford cattle are seen to be fattened on high-quality pasture in organised areas. You will have arrived at Los Pozos, a farm owned…