The 55 gallon rain barrels are near useless for small plot irrigation. Larger containers can hold a meaningful amount of water to be useful during sporadic dry spells.
No, the problem is that to get half an inch of water to cover your fields takes a giant storage tank and a giant collection area. Install a hard scape big enough to provide any notable amount of water storage and lack of arable becomes your primary issue.
Rain barrels make a tiny bit of sense in a small urban lot with a large roof. They make no goddamned sense at all in most agricultural contexts.
Rain barrels make a tiny bit of sense in a small urban lot with a large roof. They make no goddamned sense at all in most agricultural contexts.