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以热电厂燃煤脱硫废弃物作为化学改良剂按每平方米1617g(A处理)、1294g(B处理)、1078g(D处理)施于巴彦淖尔市盐碱土壤上并种植作物向日葵,不施脱硫废弃物作为对照(CK),一季生产过后,土壤的化学性质明显得到改良。试验结果表明:各处理的全盐量、pH值、交换性Na+含量与对照相比差异极显著。A、D两个处理的碱化度与对照相比差异为显著,而B处理的碱化度与对照相比差异为极显著。这充分说明施用脱硫废弃物可以降低土壤盐碱化程度,从而起到改良盐碱地的作用。
The coal-fired desulfurization waste from coal-fired power plant was used as chemical modifier and was applied to 1697g (A treatment), 1294g (B treatment) and 1078g (D treatment) per square meter of saline-alkali soil in Bayannaoir City, Waste as a CK (CK), after the first season of production, the chemical properties of the soil has been significantly improved. The results showed that the total salinity, pH value and exchangeable Na + content of each treatment were significantly different from the control. The alkalization degree of A and D treatments were significantly different from that of control, while the alkalization degree of B treatment was significantly different from that of control. This fully shows that the application of desulfurization waste can reduce the degree of soil salinity, which play a role in improving saline land.