脲酶抑制剂和纳米零价铁对耐抽薹生菜-土壤系统多效唑残留量及产量的影响-湖南生态科学学报-CSCIED科技核心评价数据库-手机版

脲酶抑制剂和纳米零价铁对耐抽薹生菜-土壤系统多效唑残留量及产量的影响

Effects of Urease Inhibitor and Nano Zerovalent Iron on Paclobutrazol Residues and Yield in the Bolting-Resistant Lettuce-Soil System

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DOI	10.3969/j.issn.2095-7300.2025.02.001
刊名	湖南生态科学学报 Journal of Hunan Ecological Science
年，卷(期)	2025, 12(2)
作者	周民哲,徐华勤,赵本良,郭涛,张满云*,
作者单位	湖南农业大学环境与生态学院,湖南长沙; 华南农业大学广东省现代生态农业与循环农业工程技术研究中心,广东广州
摘要	【目的】探讨脲酶抑制剂(NBPT)与纳米零价铁(nZVI)在全年耐抽薹生菜-土壤系统中的效应,为减少农药多效唑残留量并提高作物产量提供依据。【方法】通过生菜盆栽试验,设置了4个处理,即CK、nZVI处理、NBPT处理、联合施用NBPT与nZVI。3个月后,测定生菜多效唑残留量、生菜品质和产量、生菜抗逆性指标、土壤多效唑残留量、土壤理化性质、土壤酶活性以及土壤电子传递体系活性。【结果】与CK土壤相比,在单施nZVI或NBPT及联合施用nZVI与NBPT后,土壤中的多效唑残留量分别显著降低了18.3%、10.9%和15.8%(P<0.05)。与CK生菜处理相比,施用NBPT后生菜中的多效唑残留量降低36.5%,但结果并不显著(P>0.05),施用nZVI后生菜中的多效唑残留量显著升高了103%(P<0.05)。与CK相比,施用nZVI后生菜产量降低了53.5%,但施用NBPT后提高了168%(P<0.05),而两者联合施用生菜产量提高了59.8%。此外,NBPT的施用还显著提高了生菜品质、土壤pH、几丁质酶活性和电子传递体系活性。【结论】NBPT和nZVI的施用均显著降低了土壤中的多效唑残留量,但施用nZVI不利于生菜中多效唑残留的降解。单独施用nZVI显著降低了生菜产量,而额外的NBPT添加则缓解了nZVI对产量的负面影响。nZVI与NBPT的联合应用为多效唑残留风险管理和作物安全提供了环境友好型解决方案,未来研究需进一步验证该联合处理模式在不同作物系统中的普适性及田间适用性。
Abstract	【Objective】To reduce pesticide paclobutrazol residues and improve crop yield, this study aims to explore the effects of urease inhibitor NBPT [N-(n-butyl) thiophosphoric triamide] and nano ze- rovalent iron (nZVI) in the year-round bolting-resistant lettuce-soil system. 【Method】A three-month let- tuce pot experiment was set up, with NBPT and nZVI applied separately. After the experiment, lettuce paclobutrazol residues, lettuce quality and yield, and lettuce resistance indicators were measured. Soil paclobutrazol residues, soil physicochemical properties, soil enzyme activities, and soil electron transport system activity were also assessed. 【Result】Compared with the CK soil treatment, paclobutrazol residues in the soil significantly decreased by 18. 3% , 10. 9% , and 15. 8% after the application of nZVI, NBPT, and the co-application of nZVI and NBPT, respectively ( P < 0. 05 ). Relative to the CK lettuce treatment, the addition of NBPT reduced paclobutrazol residues in lettuce by 36. 5% , but the result was insignificant (P>0. 05). Meanwhile, after the application of nZVI, paclobutrazol residues in lettuce were significantly increased by 103% (P<0. 05). In contrast to the CK lettuce treatment, lettuce yield de- creased by 53. 5% after the application of nZVI, but significantly increased by 168% after the application of NBPT ( P < 0. 05). Additionally, the co-application of both increased lettuce yield by 59. 8% . The application of NBPT also improved lettuce quality, soil pH, chitinase activity, and electron transport system activity. 【Conclusion】The applications of NBPT and nZVI significantly reduced soil pa- clobutrazol residues but the application of nZVI was not conducive to the degradation of paclobutrazol resi- dues in lettuce. The sole application of nZVI significantly reduced lettuce yield, while the additional ap- plication of NBPT alleviated the negative impact of nZVI on yield. The combined application of nZVI and NBPT provided an environmentally friendly solution for paclobutrazol residue management and crop safety. Future research should further validate the general applicability and field suitability of this com- bined treatment approach across different crop systems.
关键词	多效唑残留;生菜;产量;纳米零价铁;脲酶抑制剂
KeyWord	paclobutrazol residues; lettuce; yield; nano zerovalent iron; urease inhibitor
基金项目
页码	1-12

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周民哲,徐华勤,赵本良,郭涛,张满云*. 脲酶抑制剂和纳米零价铁对耐抽薹生菜-土壤系统多效唑残留量及产量的影响 [J]. 湖南生态科学学报. 2025; 12; (2). 1 - 12.

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