Absolutely like I stated above cultural methods can flare weed seeds that have been laying dormant for long time. That doesn’t indicate poor soil or anything like that. Palmer pigweeds thrive on less canopy competition. Sicklepod can lay dormant for 30 plus years deep in soil then turned to the top and boom here they come. Most weed seed have vectors that distribute them. Equipment animals and so forth. So once again BradB situation doesn’t mean “he caused it” ruining his ground