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布拉西诺利德对土壤微生物的作用在被甲基污染的小麦田里

Xi'e Song¹, Junli Cao², Shuai Guo¹

¹College of Agriculture, Shanxi Agricultural University, No. 81 Longcheng Street, Xiaodian District, Taiyuan 030031, China.

|July 29, 2023

概括

铜类固醇加速了土壤中除草剂tribenuron-methyl的降解,对土壤微生物群落产生积极影响,增加了小米产量. 这为农业领域的农药残留物管理提供了新的策略.

科学领域:

农业科学农业科学
环境科学环境科学
生物化学生物化学

背景情况:

甲是一种用于小米田的除草剂,但它对土壤生态有负面影响.
众所周知,铜类固醇可以增强植物的抗压能力,但对其在农药污染土壤修复中的作用的研究有限.

研究的目的:

在田间条件下研究类固醇对tribenuron-methyl残留物,土壤酶活性,微生物群落和小米产量的影响.

主要方法:

在150毫升的hm-2.2的brassinosteroids的野外应用.
对tribenuron-methyl降解速率的分析.
测量土壤酶活动 (catalase,脱酶,糖酶,性酸酶).
高通量测序用于土壤微生物社区分析 (细菌和真菌).

主要成果:

布拉斯类固醇的应用加速了tribenuron-methyl降解.
刺激了酶和脱酶的活性;抑制了糖酶和性酸酶.
改变了土壤微生物社区结构,抑制了某些类型,同时促进了蓝藻细菌.
增加了土壤微生物多样性和改变了土壤代谢功能.
提高了小米产量2.4%和13.6%.

结论:

铜类固醇可以减轻tribenuron-methyl在小米田中的负面生态影响.
这项研究为安全使用tribenuron-methyl提供了理论基础,并为农药残留物修复提供了一种新方法.

关键词:

布拉西诺类固醇类药物酶活动酶活动土壤微生物群三uron-甲基的使用.

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