| 王鼎,陈晓龙,王梓璇,冯永林,李跃进,刘学录,褚润.复合调理剂对重度碱化土壤改良效果研究[J].干旱地区农业研究,2026,(3):224~233 |
| 复合调理剂对重度碱化土壤改良效果研究 |
| Effects of compound conditioner on the improvement of heavily alkalized soil |
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| DOI：10.7606/j.issn.1000-7601.2026.03.21 |
| 中文关键词: 复合调理剂 碱化土壤 含盐量 土壤pH 河套灌区 |
| 英文关键词:compound conditioner alkalized soil salinity soil pH Hetao irrigation district |
| 基金项目:甘肃省农业大学科研启动基金（GAU-KYQD-2020-25）；甘肃省高校青年博士支持项目（2023QB-131）；2024年度部省合作项目（2024ZRBSHZ120）；甘肃省重大科技任务-中央引导地方科技发展资金项目（25ZYJA032） |
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| 中文摘要: |
| 为研究不同类型复合调理剂对作物生长根区盐基离子的调控作用，以内蒙古河套灌区重度碱化土壤为研究对象，将MB-10混床树脂、硅酸钙、脱硫石膏、膨润土、腐植酸、聚丙烯酰胺-无机矿物复合保水剂按不同比例复配形成不同类型的复合调理剂，开展田间试验分析四种复合调理剂不同水平施用下对土壤pH、碱化度、全盐量及盐基离子含量的影响。结果表明：中、高水平施用脱硫石膏型复合调理剂后，土壤pH显著降低了0.54~1.21、碱化度显著降低了28.9%~63.6%，土壤由重度碱化转变为中度碱化至轻度碱化，其余三种复合调理剂对土壤碱性改良效果不明显。在向日葵苗期，不同水平施用硅酸钙型复合调理剂均显著降低了土壤全盐量，降幅为39.3%~60.2%。高分子吸附型复合调理剂对土壤中Na+和Cl-有一定吸附作用；硅酸钙型复合调理剂施用后，土壤中Na+和Cl-含量也不同程度降低；脱硫石膏型复合调理剂施用后，CO2-3和HCO-3含量均不同程度降低。综上，脱硫石膏型复合调理剂对土壤碱性抑制作用明显，推荐中水平施用；高分子吸附型和硅酸钙型复合调理剂对土壤中Na+和Cl-有一定脱除效果，推荐低水平施用。 |
| 英文摘要: |
| To study the regulatory effects of different compound conditioners on the base ions in the root zone of crop growth, the heavily alkalized soil in the Hetao Irrigation District of Inner Mongolia was taken as the research object. Four different types of compound conditioning agents were compounded by MB-10 mixed resin, calcium silicate, desulfurization gypsum, bentonite, humic acid, and polyacrylamide\|inorganic mineral composite water\|retaining agent in different proportions. Field experiments were conducted to analyze the effects of different levels of application of four compound conditioners on soil pH, alkalization degree, total salt content, and base ion content. The results showed that after applying the desulfurization gypsum type compound conditioner at medium and high levels, both soil pH and alkalinity degree decreased significantly, with the reductions ranging from 0.54 to 1.21 and 28.9% to 63.6%, respectively. The soil alkalinity changed from severe to moderate to mild. The other three compound conditioners had no obvious effect on improving soil alkalinity. During the seedling stage of sunflowers, the application of calcium silicate type compound conditioner at different levels significantly reduced the total soil salt content, with a reduction rate ranging from 39.3% to 60.2%. The polymer adsorption type compound conditioner has a certain adsorption effect on Na+ and Cl- in the soil. After the application of calcium silicate type compound conditioner, the contents of Na+ and Cl- in the soil also decreased to varying degrees. After the application of the desulfurization gypsum\|based compound conditioning agent, the contents of CO2-3 and HCO-3 decreased to varying degrees. Therefore, it can be concluded that the desulfurization gypsum type compound conditioner has a significant inhibitory effect on soil alkalinity and is recommended for medium level application. Polymer adsorption type compound conditioner and calcium silicate type compound conditioner have certain removal effects on Na+ and Cl- in the soil. It is recommended to apply them at a low level. |
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