坦克混合甲和硫对土壤酶和微生物动态的协同影响
Nisith Nishank Purohit1, Pervinder Kaur2, Makhan Singh Bhullar1
1Department of Agronomy, PAU, Ludhiana, 141001, Punjab, India.
Environmental monitoring and assessment
|October 21, 2024
概括
氧硫和甲除草剂,特别是当它们结合使用时,可显著抑制土壤的酶和微生物活动. 甲显示出更大的影响,活动在收获时恢复.
科学领域:
- 农业科学 农业科学
- 土壤科学 土壤科学
- 环境科学 环境科学
背景情况:
- 土壤健康对于农业生产率至关重要.
- 除草剂可以影响土壤微生物和酶功能.
- 了解除草剂的影响对于可持续农业至关重要.
研究的目的:
- 评估pyrroxasulfone和pendimethalin对土壤酶和微生物活动的影响.
- 为了比较单个和混合除草剂应用的效果.
- 为了确定敏感的土壤生物标志物对除草剂的影响.
主要方法:
- 实地实验使用一个因数随机的完整块设计进行了实地实验,使用16种治疗方法.
- 随着时间的推移,监测土壤的酶和微生物活动.
- 使用主要成分分析 (PCA) 和综合生物标志物响应 (IBRv2) 的分析.
主要成果:
- 除草剂在土壤活动中诱导了剂量依赖的滞后阶段.
- 混合剂的应用引起了最高的抑制 (90.7-99.1%),其次是甲 (77.3-92.9%) 和硫 (30.3-76.2%).
- 脱酶活性和细菌是最敏感的;活动通过收获恢复.
结论:
- 甲对土壤活动的影响比硫更大.
- 坦克混合剂的应用表明了协同的抑制作用.
- 土壤的酶和微生物活动可以在除草剂应用后恢复.
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