It'll be an eye-opener. Once an accrual accounting system is up and running, you'll be amazed by what it can tell you about your farm business.
Many farmers continue to report farm income on the cash method. If your farm is small and its activities don't change much from year to year, cash accounting can be quite adequate.
On the other hand, if your operation is growing and you're adding or changing your product mix and production processes, accrual accounting will be quite beneficial - if not essential - in managing your business effectively.