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Eric C. Miller SOIL 4213: Precision Agriculture April 15 th, 2013.

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Presentation on theme: "Eric C. Miller SOIL 4213: Precision Agriculture April 15 th, 2013."— Presentation transcript:

1 Eric C. Miller SOIL 4213: Precision Agriculture April 15 th, 2013

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3  Improved seedbed environment ◦ Dryer and warmer soils ◦ Earlier planting ◦ Consistent seed depth ◦ Better plant stand  Net Return  Yield Response ◦ P and K fertilizer placement

4 Tillage Emergence plants/foot V6 growth grams/plant V12 growth grams/plant Chisel Plow Strip tillage No tillage Data adapted from Wolkowski et al., 2009 Photo adapted from Vyn et al., 2008 No tillageStrip tillage

5 No tillageChisel plowSpring RM*Spring RM + ST $ ac -1 Corn cost* Soybean cost Rotational Avg *RM=residue management, ST=strip tillage **Costs include: labor, repairs, fuel, seed, fertilizer, herbicide, interest, drying fuel, and operating costs Data adapted from Archer and Reicosky, 2009

6  Most common method  Increased vertical stratification of P and K  Potential improved fertilizer use efficiency Broadcast Banded

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8 ab b Data adapted from Tarkalson and Bjorneberg, 2012

9 a a b Data adapted from Vyn et al., 2006

10 Photo adapted from Vyn et al., 2008 Planted on the strip Planted off the strip The strip

11 a c ab bc ab Data adapted from Vyn et al., 2008

12  Improved seedbed environment  Net Return  Yield Response  Value of RTK No tillage Conventional

13 Questions?


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