For Graduate School at Oklahoma State University in Precision Agriculture
(M.S. and Ph.D in Soil Science and M.S. and Ph.D. in Agricultural Engineering)
(POSTER, Nutrient Management Graduate Students, 1992-2019)
Graduate Student Handbook (Graduate College)
Graduate Student Handbook 2018
Graduate Student Handbook 2016
Committee Signature Page (Oral Defense)
Graduate COLLEGE Calendar
1. ON-LINE Graduate College Application
2. Application for an Assistantship in the Department of Plant and Soil Sciences
PASS Graduate Student Handbook
On-line Plan of Study: http://gradcollege.okstate.edu/planofstudy
Eric Miller (PHD, 2014), Maximizing the Value of a PhD
Procedure for Enrollment, Domestic and International Students
Summary of Procedure for Doctoral Degree
Summary of Procedure for MS Degree
ORAL Defense Form, MS and PHD degrees
Assessment Paperwork for those finishing their degree
Termination-Separation-Checklist for those finishing their degree
AJ - Release
>117 OSU Graduate Students Have Now Worked with CIMMYT in Mexico, Turkey, China, Argentina, India, Russia, and Uzbekistan
M.S. Agriculture (on-line)
Are You Graduating?
1. Comprehensive exams should be completed 6 months before you graduate
2. Thesis / Dissertation defense should be completed 1 month before graduation
Grad Clearance Form: March 22
Graduate Application: April 1
Last day to defend: April 19
Submit thesis by: April 2
Nutrient Management Proficiency EXAM
1. Plant and Soil Sciences Proficiency Exam +answers
2. Basic Level Fertilizer Rate Calculations
Byungkyun Chung, Ph.D.
McNeesse State University
Lake Charles, LA
Submit your agricultural reseach paper to Agrosystems, Geosciences & Environment
Journal, Review Process
Graduate Student Assessment Forms (once your degree is completed)
Journal Publications (NUE site)
How to properly cite articles in your references section (American Society of Agronomy)
Graduate Students 2018 Soil Sampling and at the Magruder Plots
Grad College Academic Calendar
Orientation ISSUES (composite)
Creating your own Web Site (Dwayne Hunter, 2014)
VIDEO of the 2009 Graduate Students
Pictures of Soil Fertility Graduate Students, 1991-present
A. Graduate College Forms Download PAGE
B. Admission to Doctoral Candidacy Form (OSU Graduate College)
C. Exit Interview 2018
Example Abstract (Agronomy Journal) PUE Abstract (Dhillon)
SI Units and conversions (American Society of Agronomy)
Activity Sheets (Monthly)
Our present world population of 7.4 billion people depends on the availability and use of nitrogen (N). Nitrogen fertilizer is widely used in global cereal production, with the three main cereals being maize, rice, and wheat. Nitrogen Use Efficiency (NUE) is 33% for cereal production in the world, meaning 67% is lost to the environment or sequestered in organic fractions. Present challenges are centered on improving global NUE through the utilization of mid-season sensor based-N management strategies. This emerging field encumbers estimates of final grain yield utilizing estimated mid-season biomass, projected growth rates for the growing-environment and season in question, which ultimately leads to tailored fertilizer N rates. This approach delivers overnight increases in NUE through customized fertilization rates for each unique set of growing conditions. The objective of my thesis study is to determine the optimum preplant fertilizer nitrogen (N) rate for maize (Zea mays L.) and sorghum (Sorghum bicolor) in a dryland production environment. Delayed or reduced applications of N are ideal so long as final grain yield is not sacrificed. This approach has the potential to increase NUE and provide a positive economic return to producers.
|Projects Published from Class (SOIL 5813 and SOIL 5112)|
Example Tables, and Figures
World Nitrogen Use Efficiency for Cereal Production is 33%
Agronomy Journal, 91:357-363
Our NUE paper (1999) is close to receiving 1700 citations. It is now 6th all-time concerning citations for the entire history of Agronomy Journal (1908 to present). This started with a simple question, that it turns out was important and for which others were interested in the answer as well. This question led to other questions (PUE, KUE, SUE) that have since been addressed as well.
If you have a question that needs to be answered, the time to start is now. It may take years to answer, but years are what you have on your side. I remember being discouraged from completing the AJ 1999-NUE paper, but where time has shown that it was of value to our research society. Certain groups have absolutely no idea how valuable this work is, and do not care. Nonetheless, what we have to do as researchers is to stay true to our responsibility to ask those viable and salient questions. This paper opened the door for other really good questions that are now cited as well (PUE, KUE, SUE). I encourage you to work with your fellow students to ask these types of questions as well and to pursue them with the energy each deserves.
Furthermore, this past week, my total citations eclipsed 14,000. Does anybody really care what this number is? The answer is no, anyway not in our current structure. However, it is a value that time will always hold on to, and that the H-index will record until it too is replaced by a more robust metric that represents productivity in science.
This is just another reminder to ask good questions. Yesterday I mentioned the abstract for the environment paper. This is now included. Having a mathematical value that could holistically communicate environment is the objective. With Jagman on the cusp of leaving OSU, I challenge him and our other senior PhD students to think this through. Yield is an expression of that environment. The question needs to be turned on its head whereby my enviro-metric describes ranges.
If you wait to write, that model does not work. Write it down, whatever it is that you believe is relevant at the time. Complete the review of literature before you have any data. A random compilation of ideas can be sorted out later. There does have to be an objective, but that too can take shape as you move your idea forward. The experimental method that you are accustomed to is a bit different as it has to follow a formal path. However, idea papers like this have no structured rules that have to be followed.
Write, and write often.
Student Resume Examples
Jagmandeep Dhillon, 2019
Ethan Driver, MS, 2016
Gwen Weymeyer, MS, 2017
Mariana Ramos Del Corso, MS, 2016
Jeremiah Mullock, PhD, 2014
Ethan Wyatt, MS, 2013
Guilherme Torres, PhD, 2010
Katy Butchee, MS, 2010
Jake Vossenkemper, MS, 2009
Abstract (rationale, methods, results, conclusion)
Introduction (objective, last sentence of this section)
Materials and Methods
Results and Discusion
List of Tables
List of Figures
Example, MS Proposal, Natasha Macnack
Example, MS Proposal, Jagmandeep Dhillon
Example, PhD Proposal, Guilherme Torres
Example, PhD Proposal, Jeremiah Mullock
Example, PhD Proposal, Eric Miller
Example Thesis, Katy Butchee
Agronomy Journal )(Instructions to Authors)
(Example References, starting on page 12)
International Student Travel - CIMMYT
Pictures & PHD Students
Student NUE Page
Calculations for pounds of P2O5 and
K20/acre = kg P and K per hectare
lb P2O5 / ac * 0.4928 = kg P/ha
lb K2O /ac * 0.93 = kg K/ha
1 acre = 0.405 ha
1 ha = 2.47 ac
P2O5 * 0.44 = P
K2O * 0.83 = K
lb/ac * 1.12 = kg/ha
Agrosystems, Geosciences, & Environment (NEW for ASA, CSSA, SSSA, 2018)
Communications in Soil Science and Plant Analysis
Journal of Plant Nutrition
Journal of Experimental Agriculture
(Lamb et al., 1985) (Lamb, 1990)
Lamb et al. (1985) Lamb 1990
(Lamb et al., 1985; Scagg et al., 1972)
Journal of Plant Nutrition
Plant and Soil
Soil Science Society of America Journal
Done with your Thesis? Your committee needs to fill out these forms. See link below
Getting Ready for An
What you need to know
Dr. Klatt, Training Manual
prepared by Sarah Battenfield
Site for filling our your Plan of Study
Grad College Academic Calendar
Grad College, Prospective Students
Grad College, Current Students
SOIL: 1.0%Organic C = 10 g/kg
Grain: 2%N = 20g/kg
1. Go to www.okstate.edu
2. Click on Student Info. System (bottom left link)
3. Login into Student Services
4. Login "name and password"
5. Go to "Student Records"
6. Check on "Diploma Application."
Since 1991, 85 students have received M.S. or Ph.D degrees in Soil Science at
Oklahoma State University working primarily in Precision Agriculture.
These students have gone on to excel in University, Private, and Public
settings, and their teamwork at OSU has led to the development of
GreenSeeker sensors that are now commercially sold via NTech Industries (www.ntechindustures.com).
The key to the success achieved at OSU can be attributed to the unselfish
commitment from each of our students to the development of applied
technologies that can be used in both the developed and developing world.
Our students are the central shining fabric of what we are all about.
Graduate students in our program are required to travel, with the majority of travel tied directly to the extension of improved sensor based nutrient management strategies. To date, 82 of our students have traveled and worked abroad on a short term (2 week) and long term (1 semester) basis. Countries where they have worked include Mexico, Argentina, Zimbabwe, China, India, Uzbekistan, Australia, Canada, and the Philippines. We welcome you to apply to our graduate program which has averaged 10 students per year, working as team members within one of the most productive and dynamic precision agriculture projects in the world.
SEE MORE ON OSU
GRADUATE STUDENT TRAVEL (click below)
More OSU Students (Jared Crain)
115 OSU Graduate Students Have Now Worked with CIMMYT in Mexico, Turkey, China, Argentina, and India
Olga Walsh and Kyle Lawles conduct infield training on the use of the GreenSeeker sensor in Texcoco, Mexico.
Farmer training in Ciudad Obregon, Mexico,
conducted solely by OSU graduate students.