加拿大萨斯喀彻温省的钾矿是1943年勘探石油时首次发现的。1951年初次试采,但由于井筒涌水而未成功。在解决了涌水问题之后,第一个钾矿于60年代初期投产。在开采技术成熟及钾矿储量和质量情况均已查清之后,一些公司相继在该地区进行开采。至1970年有七座矿山投产,另有三座矿山基本建成,合计K_2O的生产能力达到760万吨/年。当时,世界钾盐需求量约为1500万吨/年。由于加拿大钾盐产量的增加,造成生产 The potassium mine in Saskatchewan, Canada, was first discovered during the exploration of oil in 1943. Preliminary test in 1951, but failed due to gushing water. The first potassium mine was put into operation in the early 1960s after the gushing problem was solved. After the mining technology is mature and reserves of potassium and quality have been identified, some companies successively mine in the area. By 1970, seven mines were put into operation. In addition, three mines were basically completed and the total K 2 O production capacity reached 7.6 million tons / year. At that time, the world demand for potassium was about 15 million tons / year. As a result of the increase in potash production in Canada, production is caused