Carlsbad potash deposit of New Mexico, found in USA the earliest among deposits of its kind, acts at all times as a leading potash-providing base.

• 新墨西哥州卡尔斯巴德 (Carlsbad)钾盐矿床是美国最早发现的古钾盐矿床 ,该矿床一直是美国钾盐的主要供给地。