一个针对小麦田中的杂草的智能喷雾系统,基于对小麦叶造成影响的水滴的动态模型
Qi Xie1,2,3,4, Minghan Song1,2,3,4, Tong Wen1,2,3,4
1College of Agriculture, Nanjing Agricultural University, Nanjing, China.
Frontiers in plant science
|July 1, 2024
概括
在小麦田中优化向除草剂的应用,这项研究发现,喷压力为0.4 MPa,流量为0.011 kg/s,喷高度为300 mm,最大限度地提高了除草剂的附着性. 这提高了利用率,并实现了精确的应用.
科学领域:
- 农业工程 农业工程
- 精准农业 精准农业 精准农业
- 杂草科学 杂草科学
背景情况:
- 针对性地在小麦田中应用除草剂,其粘附率较低,导致除草剂浪费和效率降低.
- 目前的方法往往导致除草剂损失和杂草覆盖不完整.
研究的目的:
- 为了提高除草剂的附着性和在准的小麦田应用中的利用.
- 为了应对目前除草剂喷雾系统中粘度低和过度损失的挑战.
主要方法:
- 建立了杂草叶的动态模型来分析杂草-除草剂相互作用.
- 开发了一种基于有限元素方法 (FEM) 的动态模拟模型,用于除草剂应用.
- 研究了在喷过程中除草剂和杂草叶子变形的冲击力.
主要成果:
- 确定了最佳喷参数:0.4MPa压力,0.011公斤/秒的流量,以及300毫米的喷高度,以获得最大的除草剂粘附度.
- 在最佳条件下,模拟显示最大的叶子变形指数 (LDI) 为0.43和接近零的外部流速.
- 实地测试证实了具有最佳参数的高附着性 (最大LDI0.41) 和有效覆盖率 (叶子以下19.02%).
结论:
- 优化的喷参数显著改善了除草剂的附着性,减少了损失.
- 这种方法有效地解决了小麦田中除草剂利用率低的问题.
- 实现了精确的除草剂应用,提高了整体杂草管理效率.
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