Published February 7, 2015 at 1024 × 674 in From a single potato tuber to one tonne in a year? Yes, it can be done. Ing. Luis Fernando Cartin, Costa Rican national potato program leader in the 1970s, on the right. Share this: Email a link to a friend (Opens in new window) Email Print (Opens in new window) Print Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Share on WhatsApp (Opens in new window) WhatsApp Share on LinkedIn (Opens in new window) LinkedIn Like Loading... ← Previous Next →