With agricultural commodity prices at multi-year highs, buying farmland is seen as a more direct way to cash in on valuable crops and to take advantage of the long-term appreciation of farm property. As a result, investors from around the world are pouring a lot of funds into agriculture this year to boost yields across the top producer nations as record-high food prices jolt markets and send buyers scurrying for supplies. South America is today worldwide considered a top place to buy, lease and manage agricultural…