采取先发制人的行动可以降低管理除草剂耐药性的长期成本
Alexa Varah1, Kwadjo Ahodo2, Dylan Z Childs3
1Natural History Museum, Cromwell Road, London, UK. a.varah@nhm.ac.uk.
Scientific reports
|March 15, 2024
概括
多样化农场管理可以控制除草剂耐药性,但需要财政激励. 积极的规划至关重要,在耐药性变得广泛之前管理它,确保长期的粮食安全.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 生态生态学 生态生态学
背景情况:
- 过度使用农药导致对除草剂的耐药性,导致农业的重大财务和生产损失.
- 尽管存在耐药性风险,但在密集型农业系统中很少实施多元化农场管理策略.
- 抗除草剂耐药性对全球作物产量和粮食安全构成越来越大的威胁.
研究的目的:
- 评估多元化作物策略对杂草密度,利和产量的财务可行性和影响.
- 为了比较农民设计的多元化策略与在管理抗除草剂耐药性方面普遍存在的农业实践.
- 根据政策决策,采取多元化农业来打击抗除草剂耐药性.
主要方法:
- 农民设计了多样化的作物策略,重点是控制除草剂耐药性.
- 杂草密度,农场利和作物产量被估计为多元化和传统实践.
- 在不同阻力水平下分析了采用多种轮换的经济和生产影响.
主要成果:
- 当除草剂耐药性低时,多样化在经济上是可行的,但当耐药性高时,存在阻碍因素.
- 针对高耐药性的多种轮换有时会增加除草剂的使用,影响财务可行性并引起人们对草甘耐药性的担忧.
- 采用多种轮换可能会导致小麦产量下降,但提供潜在的环境副效益.
结论:
- 积极管理除草剂耐药性,在它变得广泛之前,与控制现有的耐药性一样重要.
- 需要政府的鼓励和激励来实现作物多样化,特别是在没有广泛抵抗的地区.
- 农业,环境和卫生部门的综合政策制定对于长期的粮食安全规划至关重要.
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