Wang Xi, Fan Jun, Zhou Gu, Fu Wei
College of Urban and Environment Science, Northwest University, Xi'an 710127, China.
State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling 712100, Shaanxi, China.
Ying Yong Sheng Tai Xue Bao. 2022 Apr;33(4):887-893. doi: 10.13287/j.1001-9332.202204.024.
An indoor potted experiment was carried out to study the application effects of water-based waste drilling mud (WBDM) and drill cuttings combined with humic acid and woody peat in aeolian sandy soil.We analyze their effects on the growth of spinach, in order to provide a reference for the resource utilization of drilling waste and the improvement of aeolian sandy soil. A total of three individual experiments were set up: 4 treatments in the basic group, taking aeolian sandy soil as the control (CK), mixing aeolian sandy soil and drill cuttings at a mass ratio of 1:1, then added with 0, 2%, and 4% WBDM (dry basis) respectively. The basic group treatment was added with 1% humic acid, 1% humic acid+3% woody peat mixture respectively, as the humic acid group and woody peat group. The results showed that in the basic group, drilling waste application significantly increased soil organic matter content (SOM), pH and electrical conductivity, the 2% WBDM significantly promoted the growth of spinach. Humic acid and woody peat reduced soil pH and increased SOM content and electrical conductivity. Plant growth indicators such as plant height, total leaf area, fresh weight and dry weight of the humic acid group were higher than the corresponding treatments in the basic group. The mixed addition of humic acid and woody peat did not affect plant growth. The treatment with the best performance was to add 2% WBDM to the humic acid group, and the SOM was 13.1 g·kg, spinach's plant height, total leaf area, fresh weight and dry weight significantly increased by 49.7%, 93.4%, 83.3%, and 34.6% than CK after 40 days of sowing. The application of drilling waste with organic matter could significantly increase SOM content and promote spinach growth. Aeolian sandy soil + drill cuttings + WBDM (2%) + humic acid (1%) was the best combination mode.
开展了一项室内盆栽试验，以研究水基废钻井泥浆（WBDM）和钻屑与腐殖酸和木质泥炭混合后在风沙土中的施用效果。我们分析了它们对菠菜生长的影响，以便为钻井废弃物的资源利用和风沙土改良提供参考。总共设置了三个独立试验：基础组有4个处理，以风沙土为对照（CK），将风沙土与钻屑按质量比1:1混合，然后分别添加0%、2%和4%的WBDM（干基）。基础组处理分别添加1%腐殖酸、1%腐殖酸 + 3%木质泥炭混合物，作为腐殖酸组和木质泥炭组。结果表明，在基础组中，施用钻井废弃物显著提高了土壤有机质含量（SOM）、pH值和电导率，2%的WBDM显著促进了菠菜生长。腐殖酸和木质泥炭降低了土壤pH值，增加了SOM含量和电导率。腐殖酸组的株高、总叶面积、鲜重和干重等植物生长指标高于基础组的相应处理。腐殖酸和木质泥炭混合添加不影响植物生长。表现最佳的处理是在腐殖酸组中添加2%的WBDM，SOM为13.1 g·kg，播种40天后，菠菜的株高、总叶面积、鲜重和干重比CK分别显著增加了49.7%、93.4%、83.3%和34.6%。施用含有机质的钻井废弃物可显著提高SOM含量并促进菠菜生长。风沙土 + 钻屑 + WBDM（2%） + 腐殖酸（1%）是最佳组合模式。
