DES MOINES — State environmental officials are asking farmers to be extra careful when applying fertilizer and manure to fields after harvest this year because rivers and streams are running low, which means even the smallest of spills can kill fish.
Fisheries biologist Scott Grummer said he is already seeing manure and fertilizer application on some fields this fall and advises farmers to leave more distance between application areas and vulnerable spots like streams and tile intakes.
The Iowa Department of Natural Resources has already investigated four fish kills this month.
Copyright 2013 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.