Session
Title: Managing by Zones
Date: Tue Aug 2, 2016
Time: 1:00 PM - 3:00 PM
Moderator: Tom Bruulsema
Science Behind Zones: Background/timeline/tools

Grid soil sampling and Management zones have been around for over two decades. Both techniques quantify spatial variability in farm fields. Key question: After two decades of capturing variability, are we doing it right? Does science agrees with our approach? Let’s find out.

Raj Khosla (speaker)
Professor of Precision Agriculture
Colorado State University
Fort Collins, CO 80523-1170
US
Dr. Raj Khosla is a Robert Gardner Professor of Precision Agriculture at Colorado State University. His main research focus has been on management of in-field soil and crop variability using geo-spatial technologies for precision management of crop-inputs. He has generated many discoveries in precision agriculture, most widely recognized among them is the innovative technique of quantifying variability of spatially diverse soils using satellite based remote-sensing to create management zones. Most recently, he was recognized with the Werner L. Nelson Award for Diagnosis of Yield-Limiting Factors by American Society of Agronomy. Previously, in 2015, he was recognized as the “Precision Ag Educator of the Year”, a national honor bestowed by the agricultural industry and in 2012, he was named the Jefferson Science Fellow by the National Academy of Sciences. Previously, he has served two 2-yr terms on NASA’s US “Presidential Advisory Board on Positioning, Navigation and Timing”. He is a Fellow of the American Society of Agronomy; Soil Science Society of America; Soil and Water Conservation Society; and Honorary Life Fellow of International Society of Precision Agriculture. He is the Founder and Founding-President of the International Society of Precision Agriculture.
Length (approx): 20 min
 
Moving from Grid to Zone

For an intensive soil sampling strategy both zone sampling and grid sampling could and should be used in conjunction.  

The discussion will talk about the merits of both program and when and where they could be integrated.

Brian Arnall (speaker)
Precision Nutrient Management Extension Specialist
Oklahoma State University
Stillwater, OK 74078
US
Dr. Arnall's extension, teaching, and research efforts are focused on precision technologies and nutrient management in all of Oklahoma's cropping systems with an emphasis in site specific techniques. He works closely with extension educators and industry personnel to improve nutrient management practices in Oklahoma that will lead to increased profitability of Oklahoma producers. He currently has several ongoing studies focused at the developed of methods to use sensor based technologies in cotton production and ground truthing the use of sensor in wheat production. In addition Dr. Arnall is involved in many extension projects such as demonstrating the benefits of liming and the evaluation of nutrient products that are marketed in Oklahoma.
Length (approx): 20 min
 
Are Soil Test Recs Ready for High Resolution Spatial Application

We have the ability to collect soil samples and apply fertilizer at relatively fine spatial resolutions. However, current soil test recommendations were not necessarily developed with this in mind. Questions will be raised, answers are not promised.

Josh McGrath (speaker)
Associate Professor & Extension Specialist
University of Kentucky
Lexington, KY 40546-0091
US
Dr. Josh McGrath joined University of Kentucky’s faculty in 2014 after spending eight years at the University of Maryland focused on agriculture and the Chesapeake Bay. Josh’s research and extension activities concentrate on agricultural productivity, with emphasis on water quality, nutrient use efficiency, and precision agriculture. Dr. McGrath routinely speaks throughout the United States on issues related to agriculture and the environment as well as precision agriculture. Dr. McGrath was born and raised in Smyrna, Delaware, graduated with a BA from Johns Hopkins University, earned his Ph.D. from University of Delaware, and conducted post-doctoral research at Virginia Tech. When not talking about or researching soil fertility Josh enjoys hunting and fishing and has been a volunteer firefighter for over 25 years.
Length (approx): 20 min
 
Zones Case Studies and Panel Discussion
Raj Khosla (speaker)
Professor of Precision Agriculture
Colorado State University
Fort Collins, CO 80523-1170
US
Dr. Raj Khosla is a Robert Gardner Professor of Precision Agriculture at Colorado State University. His main research focus has been on management of in-field soil and crop variability using geo-spatial technologies for precision management of crop-inputs. He has generated many discoveries in precision agriculture, most widely recognized among them is the innovative technique of quantifying variability of spatially diverse soils using satellite based remote-sensing to create management zones. Most recently, he was recognized with the Werner L. Nelson Award for Diagnosis of Yield-Limiting Factors by American Society of Agronomy. Previously, in 2015, he was recognized as the “Precision Ag Educator of the Year”, a national honor bestowed by the agricultural industry and in 2012, he was named the Jefferson Science Fellow by the National Academy of Sciences. Previously, he has served two 2-yr terms on NASA’s US “Presidential Advisory Board on Positioning, Navigation and Timing”. He is a Fellow of the American Society of Agronomy; Soil Science Society of America; Soil and Water Conservation Society; and Honorary Life Fellow of International Society of Precision Agriculture. He is the Founder and Founding-President of the International Society of Precision Agriculture.
Brian Arnall (speaker)
Precision Nutrient Management Extension Specialist
Oklahoma State University
Stillwater, OK 74078
US
Dr. Arnall's extension, teaching, and research efforts are focused on precision technologies and nutrient management in all of Oklahoma's cropping systems with an emphasis in site specific techniques. He works closely with extension educators and industry personnel to improve nutrient management practices in Oklahoma that will lead to increased profitability of Oklahoma producers. He currently has several ongoing studies focused at the developed of methods to use sensor based technologies in cotton production and ground truthing the use of sensor in wheat production. In addition Dr. Arnall is involved in many extension projects such as demonstrating the benefits of liming and the evaluation of nutrient products that are marketed in Oklahoma.
Joshua McGrath (speaker)
Associate Professor & Extension Specialist
University of Kentucky
Lexington, KY 40546-0091
US
Dr. Josh McGrath joined University of Kentucky’s faculty in 2014 after spending eight years at the University of Maryland focused on agriculture and the Chesapeake Bay. Josh’s research and extension activities concentrate on agricultural productivity, with emphasis on water quality, nutrient use efficiency, and precision agriculture. Dr. McGrath routinely speaks throughout the United States on issues related to agriculture and the environment as well as precision agriculture. Dr. McGrath was born and raised in Smyrna, Delaware, graduated with a BA from Johns Hopkins University, earned his Ph.D. from University of Delaware, and conducted post-doctoral research at Virginia Tech. When not talking about or researching soil fertility Josh enjoys hunting and fishing and has been a volunteer firefighter for over 25 years.
Length (approx): 60 min