There's many potaoes in the patch
The patch is patched, patched with potatoes. We'll never know how many potatoes there are, but they're surely many to patch that patch. The patch is sad for now is only patched with sad potatoes since the potatoes were provided by the potato god. But the fact of having potatoes isn't sad itself, what's sad is the act of that who treated the patch as nothing but a way to get a good catch. Now the patch is sad and lonely, and he must remain like that.