ClearAg:Focusing on Ag Management Zones

July 26, 2017

Ag Zone Management

© 2017 Iteris, Inc. All Rights Reserved.

Anonymous –

“Our firm has been working toward

zone management since 1994 — using

all the tools (soil testing, tissue testing,

yield and planting data, soil type, etc.)

available to decide on an appropriate

course of action for a fertilizer

prescription, be it soil- or foliar-

applied. And while the 4R concept

may be simple, implementing the

systems needed to practice it can

be challenging and costly”

Atmospheric

Processes

Agronomic PracticesLand &

Subsurface Attributes &

Processes

Soil-Plant-Atmosphere Continuum

© 2017 Iteris, Inc. All Rights Reserved.

© 2017 Iteris, Inc. All Rights Reserved.

Layer 1

• Silty Loam

• Organic

Matter: 7%

• Slope: 13o

Layer 2

• Sandy Loam

• Organic

Matter: 2%

Layer 3

• Sandy

• Organic

Matter: 0%

Zone Representative Soil Data

© 2017 Iteris, Inc. All Rights Reserved.

© 2017 Iteris, Inc. All Rights Reserved.

Slope

Texture

Class

Slope

Crop Type /

Organic Matter

Crop Type

Texture

Class

Summing it Up

Soil-Plant-

Atmosphere

Continuum

Quantified

Zone Specific Soil

Physics

Zone Specific Crop

Stage & Growth Data

Calibrated

Meteorology

© 2017 Iteris, Inc. All Rights Reserved.

© 2017 Iteris, Inc. All Rights Reserved.

ClearAg Focus – Advanced Zone Management

Plant Growth Stage Estimation

Disease & Pest Occurrence

Irrigation Scheduling &

Drainage Information

Nutrient Uptake & Transport

Yield Modeling

ClearAg FocusGlobal, Soil-Plant-Atmosphere Continuum Field Level Output

Capability

As-Applied Data

Integrated Deep

Learning

Environment

IMFocusClearAg Focus Applied

© 2017 Iteris, Inc. All Rights Reserved.

Irrigation Scheduling Improved

Root Zone Water Balance is the important metric:

Root Zone Water Change = RZI + RZCR – E – T - DP

© 2017 Iteris, Inc. All Rights Reserved.

Irrigation Scheduling Improved

Root Zone Water Balance is the important metric:

Root Zone Water Change = RZI + RZCR – E – T - DP

Root Zone Infiltration

© 2017 Iteris, Inc. All Rights Reserved.

Irrigation Scheduling Improved

Root Zone Water Balance is the important metric:

Root Zone Water Change = RZI + RZCR – E – T - DP

Root Zone Capillary Rise

© 2017 Iteris, Inc. All Rights Reserved.

Irrigation Scheduling Improved

Root Zone Water Balance is the important metric:

Root Zone Water Change = RZI + RZCR – E – T - DP

Evaporation

© 2017 Iteris, Inc. All Rights Reserved.

Irrigation Scheduling Improved

Root Zone Water Balance is the important metric:

Root Zone Water Change = RZI + RZCR – E – T - DP

Transpiration

© 2017 Iteris, Inc. All Rights Reserved.

Irrigation Scheduling Improved

Root Zone Water Balance is the important metric:

Root Zone Water Change = RZI + RZCR – E – T - DP

Deep Percolation

© 2017 Iteris, Inc. All Rights Reserved.

Irrigation Scheduling Improved

If:

Root Zone Soil Moisture < Critical Level

Then Schedule Irrigation

Scheduler works globally with minimal field inputs required,

although additional field details will enhance performance

© 2017 Iteris, Inc. All Rights Reserved.

0

10

20

30

40

50

60

4/25/14 5/15/14 6/4/14 6/24/14 7/14/14 8/3/14 8/23/14 9/12/14

Volumetric

WaterCon

tent(%

)

CosmicRayNeutronProbe

Cosmic Ray Neutron Probe Validation Data

© 2017 Iteris, Inc. All Rights Reserved.

Corn

Franz et al., 2015

0

10

20

30

40

50

60

4/25/14 5/15/14 6/4/14 6/24/14 7/14/14 8/3/14 8/23/14 9/12/14

Volumetric

WaterCon

tent(%

)

ClearAg CosmicRayNeutronProbe

RMSE = 3.82%

MAE = 2.99%

Bias = 0.09%

Clear Ag IMFocus

© 2017 Iteris, Inc. All Rights Reserved.

Irrigation

Corn

Questions?

© 2017 Iteris, Inc. All Rights Reserved.

For more information, please visit the Iteris-ClearAg Booth #88!You can also visit us online at www.clearag.com

Caleb Midgley

IMFocus Product Manager

cmidgley@iteris.com