Application Technologies
Articles
- Directed R X: 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. Memphis, Tenn.: National Cotton Council of America. Directed RX is a method developed by Clemson researchers in an effort to optimize zone delineation and assignment of inputs for spatially variable prescriptions. The Directed RX method uses strip tests to integrate yield and therefore profitability effects with site-specific foundation (e.g. soil EC, elevation, irrigation) polygons, seeking to optimize prescriptions, specific to a field and input. ...
Read More - Directed R X: A novel method for developing site-specific prescriptions
Kirk, Kendall R. 2017. ASABE Paper No. 1701598. St. Joseph, Mich.: ASABE. Directed R X is a method developed by Clemson University researchers in an effort to optimize zone delineation and assignment of inputs for spatially variable prescriptions. Tests conducted in 2016 demonstrated potential benefits of the method from case studies in variable rate corn seeding (3-19 $/ac), dual hybrid corn seeding (2-18 $/ac above variable rate seeding benefit), variable rate soybean seeding ($6/ac), and variable rate nitrogen for cotton ($11/ac)....
Read More - Directed R X for variable rate prescription development
Kirk, Kendall R. 2017. Clemson University Precision Ag Newsletter. March 2017. Variable rate application capabilities exist for most of today’s inputs used in row crop production. The central concept of the Directed R X system is to integrate yield data and soils data from a field to optimize the prescribed inputs for that specific field....
Read More - Hay production precision
K. R. Kirk. 2017. Hay & Forage Grower: April/May 2017 (pg. 14). Site-specific and variable rate technologies are widely known and applied today in row crops, in many instances being driven by and evaluated by yield monitors. These technologies are a subset of a wider subject known as precision agriculture, where crop decisions are data-driven. ...
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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. But reports during the South Carolina Cotton Growers Annual Meeting held here Jan. 22 show steps are being taken to help farmers rebound in 2019. ...
Read More - South Carolina farmers learn new farming research and technology from Clemson scientists
D. Attaway. 2018. The Clemson Newsstand. September 28, 2018. Clemson, S.C.: Clemson University. 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 to help South Carolina farmers produce profitable crops. The researchers shared their latest knowledge during the Edisto REC’s 2018 Fall Field Day. ...
Read More - New technologies from Clemson offer potential big savings for agriculture
S. Miller. 2017. The Clemson Newsstand. August 22, 2017. Clemson, S.C.: Clemson University. Tests on new nutrient-management technology under development at Clemson University showed savings of up to $54 an acre on cotton production. Those savings could mount quickly; South Carolina plants more than 180,000 acres of cotton, according to the National Agricultural Statistics Service....
Read More - 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. The software will locate exactly where soil samples are taken to help producers ensure they are taking adequate samples and then evaluate the soil for nutrient recommendations. ...
Read More - New soil sampling software is free, easy way to lower nutrient input costs
L. Hayes and S. Roach. 2017. Growing Georgia. March 29, 2017. Pensacola, Fla.: Growing America. 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. Kendall Kirk, a precision agricultural engineer at Clemson University has developed a new software program that promises to improve your soil sampling accuracy, lower nutrient input costs and help maximize yields. ...
Read More - Clemson ag engineer develops GPS software to track soil sampling
S. Miller. 2017. The Clemson Newsstand. March 8, 2017. Clemson, S.C.: Clemson University. Clemson University agricultural engineer Kendall Kirk has developed free software to help farmers track soil sampling throughout fields. The software pairs with an inexpensive global positioning system (GPS) and a laptop computer to pinpoint exactly where soil samples are taken as they are taken. ...
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Presentations
- Variable rate nitrogen for cotton using Directed R X
K. R. Kirk and M. T. Plumblee. 2019. Presented at the 2019 South Carolina Cotton Growers Meeting. January 22, 2019. Santee, SC. ......
Read More - Evaluating variable rate nitrogen application on an irrigated Tifton 85 hay field
P. J. Loftis, K. R. Kirk, J. D. Mueller, J. G. Andrae, G. S. Sell. 2017. Presented at the 2017 Piedmont REC Row Crop Field Day. August 25, 2017. Pendleton, SC. ...
Read More - Directed prescriptions for cotton production
K. R. Kirk. 2016. Presented at the Southern Cotton Growers & Southeastern Cotton Ginners Association Annual Meeting. January 22, 2016. Savannah, Ga. ...
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