Impact of Anaerobic Soil Disinfestation Treatment on the Properties of Tomato Continuous Cropping Soil  

厌氧土壤消毒对番茄连作土壤性质的影响

作　　者：ZHOU Kaisheng 周开胜(蚌埠学院环境科学实验中心,安徽蚌埠233030)

机构地区：[1]Center of Environment Science Experiment,Bengbu University,Bengbu,Anhui 233030,China

出　　处：《Journal of Resources and Ecology》2024年第4期918-924,共7页资源与生态学报（英文版）

基　　金：The Academic Support Project for Top Talents of Higher Education Subject(Major)in Anhui Province(gxbjZD2022077);The AgriculturalEcological Conservation and Pollution Control Key Laboratory of Anhui Province(FECPP201901);The High-level Talent Launch Foundationof the Applied Science Research Project of Bengbu University in 2024(2024YYX54QD).

摘　　要：To investigate the impact of anaerobic soil disinfestation(ASD)treatment with different processing duration on tomato continuous cropping soil,a total of eight treatments were designed,which included two treatment temperatures of 10℃ and 30℃,and four treatment times of 3,4,5 and 7 weeks(w).The results showed that whether the temperature was 10℃ or 30℃,the pH values,TOC and available K contents in the soil treated by the ASD method were significantly increased(P<0.05),while the EC values and NO_(3)^(-)contents in soils treated by ASD were significantly reduced compared with the untreated group(P<0.05).The Fusarium oxysporum population in soils treated by ASD decreased with the extension of the treatment time.When the treatment temperature was 30℃,the effect on the removal of the NO_(3)^(-)that had accumulated in soils treated by ASD was significantly better than the treatment temperature of 10℃(P<0.05).When soil was treated by ASD for more than 5 w at 30℃,the NH4+content in soil was significantly increased(P<0.05)compared with the untreated soil.In conclusion,NO_(3)^(-)accumulation in soils could not be completely eliminated with treatment by ASD,even when the treatment time at 10℃ was prolonged.Whether the treatment temperature was 10℃ or 30℃,the F.oxysporum population in soils treated by ASD decreased significantly with the extension of the treatment time to more than 5 w compared with treatment only for only 3 w.为探讨厌氧土壤消毒对设施番茄连作退化土壤性质的影响,分别设计10℃和30℃两个处理温度,3、4、5、7周等4个处理时间,共设计了3w-10℃、4w-10℃、5w-10℃、7w-10℃和3w-30℃、4w-30℃、5w-30℃、7w-30℃等8组处理方式。结果表明,无论处理温度为10℃还是30℃,厌氧土壤消毒处理后,各处理pH值和TOC、速效K含量均较未处理前显著升高(P<0.05),EC值和NO_(3)^(-)含量均较未处理前显著降低(P<0.05);延长处理时间,尖孢镰刀菌数量呈减少趋势。处理温度为30℃时,厌氧土壤消毒处理去除土壤累积的NO_(3)^(-)效果显著优于温度为10℃处理(P<0.05);处理温度为30℃,厌氧土壤消毒处理5周以上,土壤中NH_(4)^(+)含量大幅度显著升高(P<0.05)。可见,处理温度为10℃时,即使延长处理时间,厌氧土壤消毒处理后,也不能完全消除土壤积累的NO_(3)^(-);无论处理温度为10℃还是30℃,厌氧土壤消毒后,尖孢镰刀菌数量均随处理时间延长而减少。

关 键 词：anaerobic soil disinfestation TOMATO continuous cropping soil treatment time 

分 类 号：S641.2[农业科学—蔬菜学]