Harvest weed seed control (HWSC) comprises a set of tools and tactics that prevents the addition of weed seed to the soil seed bank, attenuating weed infestations and providing a method to combat the development and spread of herbicide‐resistant weed populations. Initial HWSC research efforts in North America are summarized and, combined with the vast area of crops suitable for HWSC, clearly indicate strong potential for this technology. However, potential limitations exist that are not present in Australian cropping systems where HWSC was developed. These include rotations with crops that are not currently amenable to HWSC (e.g. corn), high moisture content at harvest, untimely harvest, and others. Concerns about weeds becoming resistant to HWSC (i.e. adapting) exist, as do shifts in weed species composition, particularly with the diversity of weeds in North America. Currently the potential of HWSC vastly outweighs any drawbacks, necessitating further research. Such expanded efforts should foremost include chaff lining and impact mill commercial scale evaluation, as this will address potential limitations as well as economics. Growers must be integrated into large‐scale, on‐farm research and development activities aimed at alleviating the problems of using HWSC systems in North America and drive greater adoption subsequently. © 2020 Society of Chemical Industry

中文翻译：

---

北美种植系统中收获杂草种子控制的当前前景和未来研究需求。

收获杂草种子控制（HWSC）包含一系列工具和策略，可防止将杂草种子添加到土壤种子库中，减轻杂草的侵扰，并提供一种抗除草剂抗性杂草种群发展和传播的方法。总结了北美HWSC的初步研究工作，并结合适用于HWSC的广大农作物，清楚地表明了该技术的强大潜力。但是，存在开发HWSC的澳大利亚种植系统不存在的潜在限制。这些措施包括轮换使用目前不适合HWSC的农作物（例如玉米），收获时含水量高，收获不及时等。杂草对HWSC的抵抗力（即适应性）和杂草物种组成的变化也令人担忧，特别是北美杂草的多样性。当前，HWSC的潜力远远超过了任何弊端，需要进一步的研究。这种扩展的工作应首先包括使用衬里和冲击式磨机进行商业规模评估，因为这将解决潜在的局限性和经济性。必须将种植者纳入大规模的农场研究和开发活动中，以减轻北美使用HWSC系统的问题并随后推动更大的采用。©2020化学工业协会 必须将种植者纳入大规模的农场研究和开发活动中，以减轻北美使用HWSC系统的问题并随后推动更大的采用。©2020化学工业协会 必须将种植者纳入大规模的农场研究和开发活动中，以减轻北美使用HWSC系统的问题并随后推动更大的采用。©2020化学工业协会