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在盐渍土改良中，碱土与碱化土壤的改良比较困难。国内不少的文献都专门讨论了碱土与碱化土壤的改良，大多为采用石膏、磷石膏结合施用有机肥和翻压绿肥等措施l’”］。国外对改良碱化土壤亦有报道，多用化学方法进行改良I’一‘’］。1990年美国盐上实验室Rhoades和澳大利亚CS
In the improvement of saline soil, the improvement of alkaline soil and alkalized soil is more difficult. Many domestic literature devoted to the improvement of alkaline soil and alkalized soil, mostly the use of gypsum, phosphogypsum combined with the application of organic manure and turn green manure and other measures l ’’] .Also on the improvement of alkalized soil has also been reported, multi-purpose Chemical methods to improve the I ’a’]. 1990 American Salt Laboratory Rhoades and Australia CS