2,974. Who Can Consecrate a Field During Yoveil?

Hilchos Arachin Vacharamin 4:10

If a person consecrates his field during the yoveil year, it is not consecrated. If a kohein or a Levi consecrate property during yoveil, it is consecrated.

Hilchos Arachin Vacharamin 4:11

Just as kohanim and Leviim can redeem their fields at all times, they can likewise consecrate their fields at all times. [This will be explained further in halacha 21.]