The success of weed control is critical for our food security. Non-chemical weed control is a promising technique in sustainable agriculture to ensure the food security. In this review, multiple directed energy weed control methods are reviewed with a specific focus on laser and optical radiation weed control. The mechanisms of the weed control in terms of adverse ablation, radiation thermal effects, and molecular-level damages are systematically reviewed. In particular, the underlying mathematical models determining the dose and response relationship of the weed control are also analyzed for a rigorous study of the physical law of the control process. Challenges of applying the techniques into practice are also illustrated to guide practical weed control applications.

杂草控制的成功对于我们的粮食安全至关重要。非化学杂草控制是可持续农业中确保粮食安全的一项有前途的技术。在这篇综述中，回顾了多种定向能杂草控制方法，特别关注激光和光辐射杂草控制。对不良消融、辐射热效应和分子水平损伤等杂草控制机制进行了系统综述。特别是，还分析了确定杂草控制的剂量和响应关系的基础数学模型，以严格研究控制过程的物理规律。还说明了将这些技术应用于实践的挑战，以指导实际的杂草控制应用。