Keota-area farmer Tim Sieren, of Green Iron Farms, will host a Practical Farmers of Iowa field day exploring cover crops and diversified crop rotations on Thursday, June 20, from 5-8 p.m., on his farm near Keota. At this field day, Tim will showcase his diversified crop and livestock farm that includes corn, soybeans, small-grains crops like wheat and rye, cattle and hogs.