Section Control John Fulton

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Presentation transcript:

Section Control John Fulton Associate Professor and Extension Specialist Biosystems Engineering Department Auburn University 200 Corley Building Auburn, AL 36849 Office: 334-844-3541 Fax: 334-844-3530 fultojp@auburn.edu www.AlabamaPrecisionAgOnline.com

NRCS Precision Agricultue EQIP Training Headland Pass Operator Response Needed Overlap Manual Shut-Off 3-Section Control Manual versus Automatic Section Control Highlights the current state of application equipment without auto-swath. Operator must manually turn ON/OFF boom or sections of it.

Automatic Section Control www.AlabamaPrecisionAgOnline.com 11/14/2018 Automatic Section Control Automatic ON / OFF of sections on application equipment GPS-based technology Sections turn OFF: previously treated areas or unwanted areas Reduces 1) overlap and 2) application in unwanted areas (waterways, buffer strips, etc.).

Automatic Section Control www.AlabamaPrecisionAgOnline.com 11/14/2018 Automatic Section Control Nozzles OFF Buffer Strip

Sprayers Capstan Solenoid Body Example of individual nozzle control (auto-nozzle) as sprayer moves out of the crop. Source: Purdue University

Headland or Point Rows (turnaround) www.AlabamaPrecisionAgOnline.com 11/14/2018 Headland or Point Rows (turnaround) Overlap occurs across the boom Mitigated with automatic section control Overlap represented in blue.

Difference with Technology www.AlabamaPrecisionAgOnline.com 11/14/2018 Difference with Technology Manual Errors Overlaps (blue) Skips (red) ASC Errors Overlaps reduced (blue) Skips eliminated Images courtesy of Luck and Shearer

Sprayer Planters

Auto-Section Control for Planters Individual row clutches Pneumatic (Tru-Count / Trimble) Electric (John Deere, AgLeader, etc.) Cost is between $600 - $900 per row RTK correction recommended for individual row control

Value of ASC Corn Cotton 20% to 52% yield loss Harvest loss: >2 times (>2 bu/ac) Higher incidence of Aflatoxin Cotton 12% to 27% yield loss (2 vs 1.6 ba/ac) Increase in plugged tubes on picker (headache) VS.

www.AlabamaPrecisionAgOnline.com 11/14/2018 Reduction in Overlap Manual versus Automatic Section Control – Sprayer Example Courtesy of Luck and Shearer, University of Kentucky

Savings increase with the size of planter (8 → 24 rows) Equipment Size? Savings increase with the size of planter (8 → 24 rows) 11/14/2018

Damaged Grassed Waterway

Automatic Section Control for Planters Cost Calculator (ASCCC) http://economics.ag.utk.edu/asccc.html