Diversified Crop Rotations and Cover Crops

Thursday, June 20 | 5 – 8 p.m. | Keota

DSC 3466This event will showcase a diversified farm with crop rotations, cover crops and livestock. Tim will speak about his crop rotation consisting of corn, soybeans and rye or wheat. Learn how this rotation presents opportunities for diverse cover crops (namely, legumes) and how Tim incorporates a small cattle herd and hog manure. We’ll also view a couple of on-farm research trials investigating cereal rye cover crops for improving weed control in soybeans.

HOST: Tim Sieren | Green Iron Farms | (319) 560-9508 | tesieren@gmail.com


Green Iron Farms is a diversified crop and livestock family farm raising corn, soybeans, small grains, cattle and hogs. Since joining PFI’s Cooperators’ Program in 2013, Tim Sieren has been conducting trials on how to better incorporate cover crops, green manures and small grains into the operation.


  • Diversifying crop rotations with small grains
  • Termination date for a cereal rye cover crop ahead of soybeans
  • Seeding a cereal rye cover crop in the spring before planting soybeans


LOCATION: 1320 IA Hwy 92 Keota 52248


Note: Do not use Google Maps; it takes you to an address in Winterset.

From West Chester: The farm is 3 miles west of town on IA Hwy 92. The farm is on the north side of the road.

From the junction of IA Hwy 77 and IA Hwy 92 south of Keota: Go east on IA Hwy 92 for 4 miles. The farm is on the north side of the


We’ll start with a meal provided by the Washington County Cattleman’s Association and the Sieren Family. Please RSVP by clicking the blue button below. 

We take RSVP numbers to get an idea of the amount of food that we need to provide for the event. If you RSVP after the deadline but before the event, you are still welcome, but we cannot guarantee a meal.

RSVP by June 17

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