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以燃煤烟气脱硫废弃物作为化学改良剂,在内蒙古托克托县伍什家乡毡匠营村进行碱化土壤改良试验(种植作物为玉米),试验定期测定土壤的pH值、全盐量、代换性钠及碱化度等,观测植物生长指标(出苗率、产量等)。分析烟气脱硫废弃物对盐碱地土壤理化性质和玉米生长状况及产量的影响。结果表明:处理区土壤的pH值和全盐量比对照区有明显降低,处理区的原始碱化度越高,则代换性钠和碱化度的下降幅度越大。处理区的玉米出苗率和产量都明显高于对照区,用烟气脱硫废弃物改良碱化土壤具有极大的推广应用价值。
In order to improve the pH and total salt content of soils by using coal-fired flue gas desulfurization waste as chemical modifier, alkalization soil improvement experiment (planting crop was corn) was carried out in Zhanjianying Village, Wushijia Township, Tuoketuo County, Inner Mongolia. , Substitutional sodium and alkalization degree, observed plant growth indicators (emergence rate, yield, etc.). The effects of flue gas desulfurization waste on soil physical and chemical properties and corn growth status and yield were analyzed. The results showed that the pH value and total salt content of soil in the treatment area were significantly lower than those in the control area. The higher the degree of initial alkalization in the treatment area, the greater the decrease in substitution sodium and alkalinity. The emergence rate and yield of maize in the treatment area were significantly higher than that in the control area, which was of great promotion and application value with flue gas desulfurization waste improving alkalized soil.