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Economics of Precision Ag Tim Norris – Ag Info Tech, LLC.

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1 Economics of Precision Ag Tim Norris – Ag Info Tech, LLC.

2 How much nitrogen should we put down at side dress? I typically put 20 gals 28% as a carrier for the herbicide. 60 units of N. –Not stabilized and it is spread on top of the ground. Starter – I am not using any. Map is variable rate spread with rates from Zero to 400 lbs. 0 to 44 lbs. of N Organic Matter is 1.2% to 3.5%. Organic N is 24 – 70 lbs. Total N before side dress is 84 to 174 lbs. to the acre.

3 How much nitrogen should we put down at side dress? How much denitrification has occurred? Is there more organic N there than we think? So what is the correct rate? What would 10 extra gals of 28% cost me? ton, it would be $18.14 acre. How much yield would I lose if I were 10 gals short? Do you want to rely on a crap shoot?

4 2011 Test Parameters 28% $340 ton $6.00 bu. Applied in a band with Ag Leader OptRx and DirectCommand on a Case Sprayer Applications were performed in the V6-V8 growth stages 25 Gal 28% down at planting

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6 Hardscrabble Farms Delaware, Ohio Schnipke Farm Test A –Straight Rate Gal. = bu./acre –OptRx Ave Rate = bu./acre –Saved 8.52 gals. 28% for a savings of $15.42 –Yielded bu. more, an increase of $61.92 –Total Return Per Acre $77.34

7 Yield Map Red Low Green High OptRx Used Here Straight Rate 35 GPA Here

8 Hardscrabble Farms Delaware, Ohio Home Farm Test A –Straight Rate Gal. = bu./acre –OptRx Ave Rate = bu./acre –Saved -2.3gals. 28% for a savings of -$4.16 –Yielded 16.2 bu. more for an increase of $97.20 –Total Return Per Acre $93.04

9 Hardscrabble Farms Delaware, Ohio Schnipke Farm Test B –Straight Rate Gal. = bu./acre –Straight Rate Gal. = bu./acre –Straight Rate Gal. = bu./acre –OptRx Ave Rate = bu./acre

10 Hardscrabble Farms Delaware, Ohio Schnipke Farm Test B –28% Savings compared to OptRx gal. average rate Rate Gal Over OptRx$ OptRx Adv. –25.04 gal.1.45 gal. $2.62 –29.81 gal.6.22 gal. $11.25 –34.38 gal gal. $19.52

11 Hardscrabble Farms Delaware, Ohio Schnipke Farm Test B –Yield Advantage of OptRx Bu. compared to straight rates Rate Yield dif. $ OptRx Adv. –25.04 gal bu. $69.24 –29.81 gal.4.59 bu. $27.54 –34.38 gal bu. $ 6.90

12 Hardscrabble Farms Delaware, Ohio Schnipke Farm Test B –Total OptRx Advantage Rate $ OptRx Adv. –25.04 gal. $71.86 –29.81 gal. $38.79 –34.38 gal. $26.42

13 Hardscrabble Farms Delaware, Ohio Home Farm Test B –Straight Rate Gal. = bu./acre –Straight Rate Gal. = bu./acre –OptRx Ave Rate = bu./acre

14 Hardscrabble Farms Delaware, Ohio Home Farm Test B –28% Savings compared to OptRx gal. average rate Rate Gal Over OptRx$ OptRx Adv. –25.05 gal gal. -$9.84 –29.66 gal gal. -$1.50

15 Hardscrabble Farms Delaware, Ohio Home Farm Test B –Yield Advantage of OptRx Bu. compared to straight rates Rate Yield dif. $ OptRx Adv. –25.05 gal bu. $80.34 –29.66 gal bu. $86.40

16 Hardscrabble Farms Delaware, Ohio Schnipke Farm Test B –Total OptRx Advantage Rate $ OptRx Adv. –25.05 gal. $70.51 –29.66 gal. $84.90

17 Hardscrabble Farms Delaware, Ohio Average OptRx Advantage for 2011 $66.12 per acre.

18 With a $21,500 Investment What Is My ROI? 500 acres of corn at $49.62 per acre = $24,810 annually payback in 1 year. 500 acres of corn at a $20 per acre = $10,000 annually payback in 2.5 years. If you already have a display and GPS you have half the cost.

19 High Clearance Application Alternatives High clearance coulter injector. Dribble with high clearance sprayer. Spread stabilized urea or other source on dry N with high clearance spreader.

20 Take home message The technology is here. It has been proven to be an active prediction of plant stress. That prediction when compared to a N rich strip will provide a fairly accurate prediction of what the crops nitrogen needs are. Responses we have seen show that the sensors will pay for themselves quickly. The two years I showed were wet springs.


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