Doesn’t anhydrous ammonia damage the soil more than urea (46-0-0)?
Although urea and anhydrous ammonia are physically different prior to application, in soil, urea is rapidly converted into ammonia and has properties identical to anhydrous ammonia. Any of the beneficial or detrimental aspects of anhydrous ammonia on soil are equally applicable to urea since they form the same chemicals in the soil. *See the Notes section below for details on the chemistry of urea transformation in soil.
