to make a competitive move that encroaches on a position staked out by another party, an action likely to be perceived as provocative, devious, or disrespectful, as in “I don’t think starting our own kids’ streaming service is a good idea, Disney will think we’re planting in their fields”; the ownership of the metaphorical land in question could be based merely on tradition or some more formal arrangement between the entities involved; this action risks triggering a territorial reaction by the organization whose fields are thus sown, as it has the implicit right to cultivate and enjoy the harvest from them