Veteran Strains - 4. Speaking about growing. Over a six-year period in Colorado, common lambsquarters and redroot pigweed seeds were reduced to 6 and 1 percent, respectively, of the original seedbank in a continuous corn rotation where herbicides were applied and the fields cultivated Schweizer and Zimdahl, 1984.  Source: [url=https://www.ptats.co.id/Community/forums/thread/5467/]https://www.ptats.co.id/Community/forums/thread/5467/[/url]