A veteran generally cannot get a VA loan to purchase a farm with one notable exception; if the farm has a residence where the veteran intends to live. There is no 'farming requirement' for this kind of purchase, but if the veteran does intend to operate a farm business as a major source of income for loan qualification purposes, it's required to show that the business can turn a profit.
There are other options available to veterans who wish to operate a farm. The Farmers Home Administration does show preference to veterans, and can be used as a way to finance veteran-owned farm operations.
Take the guesswork out of finding a VA Loan provider. Veterans United Home Loans created this site to educate and empower military homebuyers. Regardless of what lender you pick, it's always a good idea to compare and know your options.