Precision Agriculture

Application Technologies

Variable rate and swath control technologies can improve rate, placement, timing, or product used for agricultural inputs.

Spreader Calibration

Articles

Directed Rx: A new method for variable rate nitrogen prescription in cotton

Kirk, K. R. and M. T. Plumblee. 2019. In Proceedings of the 2019 Beltwide Cotton Conference. Directed RX is a method developed by Clemson researchers to optimize zone delineation and assignment of inputs for spatially variable prescriptions...

Directed Rx: A novel method for developing site-specific prescriptions

Kirk, Kendall R. 2017. ASABE Paper No. 1701598. Tests conducted in 2016 demonstrated potential benefits of the method from case studies in variable rate corn seeding, dual hybrid corn seeding, and variable rate nitrogen for cotton...

Directed Rx for variable rate prescription development

Kirk, Kendall R. 2017. Clemson University Precision Ag Newsletter. The central concept of the Directed Rx system is to integrate yield data and soils data from a field to optimize prescribed inputs...

Hay production precision

K. R. Kirk. 2017. Hay & Forage Grower: April/May 2017. Site-specific and variable rate technologies are widely known and applied today in row crops, being driven by and evaluated by yield monitors...

News and Media

South Carolina cotton crop expected to rebound in 2019

D. Attaway. 2019. The Clemson Newsstand. February 4, 2019. Clemson, S.C.: Clemson University. Hurricanes, government shutdown and trade combined to create a tough year for South Carolina cotton farmers in 2018...

South Carolina farmers learn new farming research and technology

D. Attaway. 2018. Modern research and technology are important for today's farmers and researchers at Clemson's Edisto Research and Education Center are busy developing software and other scientific instruments...

New technologies from Clemson offer potential big savings for agriculture

S. Miller. 2017. The Clemson Newsstand. August 22, 2017. Tests on new nutrient-management technology under development at Clemson University showed savings of up to $54 an acre on cotton production...

Soil sampling helps water conservation efforts, with Clemson University GPS technology

Ag is America. (2017). In All Water Security. April 20, 2017. Clemson University has created a GPS software to track soil sampling that will help farmers not only with profitability but also environmental efforts...

New soil sampling software is free, easy way to lower nutrient input costs

L. Hayes and S. Roach. 2017. Growing Georgia. March 29, 2017. If you've been on the fence about using any kind of precision ag technology, here's an easy—and absolutely free—way to give it a try...

Clemson ag engineer develops GPS software to track soil sampling

S. Miller. 2017. The Clemson Newsstand. March 8, 2017. Clemson University agricultural engineer Kendall Kirk has developed free software to help farmers track soil sampling throughout fields...

Presentations

Directed Rx: A new method for variable rate nitrogen prescription in cotton

Kirk, K. R. and M. T. Plumblee. 2019. Beltwide Cotton Conference. New Orleans, LA. January 10, 2019.

Directed Rx: A novel method for developing site-specific prescriptions

Kirk, K. R. 2017. ASABE Annual International Meeting. Spokane, WA. July 18, 2017.

Current Research Projects

Variable Rate Application Systems

Development and evaluation of VRA systems for improved input efficiency and crop response across variable field conditions.

Prescription Development Methods

Research on methods for developing and optimizing variable rate prescriptions using field data and machine learning.