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该试验选择具有16年棚龄的北方大棚,选用腐植酸、沸石为主要材料,通过测土施肥的试验方法,研究设施农业次生盐渍土的阴离子含量状况。结果表明:施用无机肥料可以快速增加土壤表层0～20cm的阴离子盐分含量,但对20cm以下土壤阴离子影响不明显。测土配方施肥处理、测土配方施肥+腐植酸处理、测土配方施肥+沸石处理、测土配方施肥+腐植酸+沸石处理与农民常规施肥相比,在降低土壤盐分含量方面效果显著,各处理均能有效降低土壤的盐分离子NO3-、SO42-、Cl-、HCO3-的含量水平。
The experiment selected 16-year-old northern greenhouse, selected humic acid, zeolite as the main material, soil testing by fertilization test methods to study the status of agricultural secondary saline soil conditions. The results showed that the application of inorganic fertilizers can rapidly increase the anion content of 0 ~ 20cm on the soil surface, but had no obvious effect on the anion of soil under 20cm. Soil testing and fertilizer application, soil testing and fertilizer + humic acid treatment, soil testing and fertilizer + zeolite treatment, soil testing and fertilizer + humic acid + zeolite compared with conventional fertilization of farmers, significantly reducing soil salt content, each Treatment can effectively reduce soil salt ions NO3-, SO42-, Cl-, HCO3- content levels.