The Fantastic Farmer (1955)

Gumby goes to Farmer Glenn’s Ranch to help Pokey. His crops are not growing properly, so Gumby helps in every way he can and finally divides himself into a lot of Gumbys, which go over the fields with many different farm machines. It turns out that the wild growth of the crops is the result of a gopher who In order to feed his large, hungry family, injects roots of corn plants with a chemical that makes them grow into giant ears and roots. Gumby solves the problem by inventing a root machine that makes tasty roots out of weeds. GumbyWiki.