【摘要】 探究煤气化渣调理剂用量对黑麦草及土壤生态环境的影响，可为提高煤气化渣的综合利用，改善土壤结构、优化牧草品质和实现生态修复提供理论依据。本试验以黑麦草为研究对象，设置了5个不同用量的土壤调理剂处理，对照(CK),0.75 kg/m~2(M1)、1.5 kg/m~2(M2)、2.25 kg/m~2(M3)、3 kg/m~2(M4),测定不同施用量下黑麦草的株高、生物量、叶绿素、营养品质和土壤养分含量及其相互关系进行研究。在黑麦草生长方面，2.25 kg/m~2(M3)施用量显著提高了黑麦草的株高、叶绿素含量和生物量，较其他处理效果最佳；土壤特性方面，2.25 kg/m~2(M3)施用量对土壤有机质、土壤速效氮和速效磷的含量最高，使得土壤中养分的含量达到了最佳状态，也降低了pH和电导率；黑麦草品质方面，2.25 kg/m~2(M3)施用量对黑麦草粗脂肪含量的影响最为显著。相关分析表明：本试验条件下煤气化渣调理剂可以改善土壤养分，有助于黑麦草生长，且最佳施用量为2.25 kg/m~2(M3)。更多还原

【Abstract】 Exploring the effects of different application rates of gasification slag conditioner on ryegrass growth and the soil ecological environment provides a theoretical basis for enhancing the comprehensive utilization of gasification slag, improving soil structure, optimizing forage quality, and supporting ecological restoration. In this study, ryegrass was used as the test plant, and five soil conditioner treatments were applied: a control(CK), and application rates of 0.75 kg/m~2(M1), 1.5 kg/m~2(M2), 2.25 kg/m~2(M3), and 3.0 kg/m2(M4). Plant height, biomass, chlorophyll content, nutritional quality, soil nutrient levels, and their interrelationships were assessed. In terms of ryegrass growth, the 2.25 kg/m~2(M3) treatment significantly increased plant height, chlorophyll content, and biomass, showing the best overall performance. Regarding soil characteristics, M3 resulted in the highest levels of soil organic matter, available nitrogen, and available phosphorus, while also reducing soil pH and electrical conductivity, thereby improving soil fertility. For forage quality, the M3 treatment had the most significant effect on the crude fat content of ryegrass. Correlation analysis indicated that, under the conditions of this experiment, the coal gasification slag conditioner improved soil nutrient availability and promoted ryegrass growth, with 2.25 kg/m~2(M3) identified as the optimal application rate.更多还原