DNR (Department of Natural Resources) public hearing on January 20 at 1:30 p.m. in the Marr Park Conservation Center, 2943 Highway 92, Ainsworth to take public comments on rules to enact legislation that prohibits farm operators from spreading liquid manure on frozen and snow covered ground between December 21 and April 1. Written comments on the rules can be handed in at the hearings or be submitted no later than 4 p.m. on Feb. 1 to Gene Tinker, DNR, 502 E. Ninth St, Des Moines, IA 50319 or gene.tinker@dnr.iowa.gov.<br />