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What is the Effectiveness of Strip Tillage?. Eric C. Miller SOIL 4213: Precision Agriculture April 15 th , 2013. April 15 th = Tax Day. Benefits of strip tillage. Improved seedbed environment Dryer and warmer soils Earlier planting Consistent seed depth Better plant stand Net Return
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What is the Effectiveness of Strip Tillage? Eric C. Miller SOIL 4213: Precision Agriculture April 15th, 2013
Benefits of strip tillage • Improved seedbed environment • Dryer and warmer soils • Earlier planting • Consistent seed depth • Better plant stand • Net Return • Yield Response • P and K fertilizerplacement http://www.bighambrothers.com/strip-till-examples.htm
Seedbed environment No tillage Strip tillage Photo adapted from Vyn et al., 2008
Broadcast and banding P and K • Most common method • Increased vertical stratification of P and K Broadcast http://www.lancoequipment.com/ Banded http://www.farmequipmentfinder.com/view_item.php?id=2695 • Potential improved fertilizer use efficiency
Is banding P the answer? http://science.time.com/2013/04/02/report-predicts-ever-bigger-lake-erie-algae-blooms/
Yield response to banded P ab ab b Data adapted from Tarkalson and Bjorneberg, 2012
Yield response to tillage a a b Data adapted from Vyn et al., 2006
Planting into the strip is critical Planted off the strip Planted on the strip The strip Photo adapted from Vyn et al., 2008
Value of RTK a ab ab bc c Data adapted from Vyn et al., 2008
What is the effectiveness of strip tillage • Improved seedbedenvironment • Net Return • Yield Response • Value of RTK No tillage Conventional