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Variable-Rate Technology
Variable-rate technology (VRT) describes any technology which enables producers to vary the rate of crop inputs. VRT combines a variable-rate (VR) control system with application equipment to apply inputs at a precise time and/or location to achieve site-specific application rates of inputs. A complement of components, such as a DGPS receiver, computer, VR software, and controller are integrated to make VRT work. A site-specific approach allows growers to apply products only where they are needed in a field. Varying the application of inputs can reduce input and labor costs, maximize productivity, and reduces the impact over-application may have on the environment. Examples of VR applications for agriculture include fertilizer, lime, seeding and pesticides.
Publications
- Automatic Section Control (ASC) for Spreaders
- Automatic Section Control (ASC) Technology for Planters
- Automatic Section Control (ASC) Technology for Sprayers
- Calibrating Equipment with Variable-Rate Technology
- Considerations for Adopting & Implementing Precision Ag Technologie
- Explanation of GPS/GNSS Drift
- GPS/GNSS Related Terminology
- Introduction to Prescription Maps for Variable-Rate Application Introduction
- Management Zone I - Role in Site-Specific Management
- Management Zone II - Basic Steps for Delineation
- On-the-go Crop Sensing
- Overview of Automatic Section Control Technology
- Overview of Variable-Rate Technology
- Rate Controllers for Litter Spreaders Summer 2012
- Sensor-Based Variable Rate Application for Cotton
- Soil Electrical Conductivity
- Variable-Rate Seeding Fall 2012
- Winter/Spring Equipment Maintenance: Calibrating Equipment with Variable-Rate Technology
Presentations
- Considerations of Physical Properties for VR Spreading of Litter (2012 ASABE Meeting, Dallas, TX)
- Overview of Precision Ag Applications for EQIP
- GPS/GIS Applications for Farming Systems
- Precision Equipment Limitations (2010 ICPA, Denver, CO)
- Variable-Rate Application: How does it work?
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OPEN POSITION: Regional Extension Agent of Agronomic Crops – SW Alabama
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