\" \" One company's discarded orange peels turned out to be pretty fruitful for a degraded plot of Costa Rican pasture. Orange juice manufacturer Del Oro plunked 12,000 metric tons (13,228 tons) of orange peels on top of bleak Costa Rican pastureland, eventually transforming it into a lush, fertile forest. It also noted tree diameter and species from the orange peel site and that of a nearby pasture that wasn't treated with peels. \" Pasture that didn't get the orange peel treatment (L) wasn't nearly as densely vegetated or species-rich as the orange peel site (R). It's also probable that the orange peels suppressed growth of an invasive grass that was keeping the forest from flourishing, the researchers proposed.