工业大麻生物量受到来自玉米和大豆除草剂的除草剂漂移的负面影响
Milos Zaric1, Bruno Canella Vieira2, Barbara Houston2
1Department of Agronomy and Horticulture, University of Nebraska-Lincoln, West Central Research, Extension and Education Center, 402 W State Farm Road (W. P. Snyder Building 124), North Platte, NE, 69101, USA. mzaric2@unl.edu.
Scientific reports
|November 15, 2024
概括
来自附近田地的除草剂漂移可能会损害工业大麻 (Cannabis sativa L.) 的生产. 研究表明,草甘,葡萄酸盐和梅索的漂移显著减少了大麻生物质,对作物构成风险.
科学领域:
- 农业科学 农业科学
- 农业学是一种农业学.
- 环境科学 环境科学
背景情况:
- 工业大麻 (Cannabis sativa L.) 的种植正在扩大,靠近传统的排列作物.
- 来自邻近田地的除草剂漂移对大麻生产和质量构成潜在威胁.
研究的目的:
- 为了评估工业大麻对除草剂的敏感性,从普通农业除草剂转移.
- 为了比较不同类型的喷嘴的沉积模式和对除草剂漂移的影响.
主要方法:
- 模拟的除草剂漂移使用风洞与七种不同的除草剂 (2,4-D,迪坎巴,葡萄酸盐,草甘,imazethapyr,lactofen, mesotrione).
- 应用的除草剂使用常规 (TP) 和空气包含 (AI) 平扇喷嘴,模拟的空气速度为3.6 m s-1.1.
- 在mylar卡上量化喷雾沉积,并在向下风向12米的距离上测量大麻生物质的减少.
主要成果:
- 喷嘴设计显著影响了向下风的喷雾沉积,TP喷嘴比AI喷嘴更远地沉积了喷雾.
- 草甘,葡萄糖酸盐和梅索导致大麻生物质减少最为显著.
- 50%的生物质减少发生在2.9米至19.3米的距离上,这取决于除草剂和喷嘴类型.
结论:
- 除草剂漂移,特别是来自草甘,酸盐和中,对工业大麻种植构成重大风险.
- 喷嘴的选择和应用条件 (空气速度≥3.6 m s−1) 是影响大麻除草剂漂移损害程度的关键因素.
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