Oklahoma State University

Wheat

Wheat

Mosiac Product Eval

Locations: Chickasha and Lahoma Est. 2013 

This trial is designed to evaluate 

 

Ag-Xplore Product Eval

 Locations: Chickasha and Perkins Est. 2013 

This trial is designed to evaluate

Pre-flag leaf Recovery from N stress:

Locations: Lahoma, Lake Carl Blackwell Est 2012 Chicksha Est 2013 Concluded in 2014

This project is being implemented by County Educators across the state of Oklahoma.  Educators involved have established N rate plots, collected sensors readings and harvest biomass.  the data is being used to improve and validate the use of the Sensor Based N Rate Calculator in bermudagrass production.
Graduate Student Assigned: Brandon Burgess

NPKS Response Study:

Locations: 80 farmer fields Est 2011 concluded in 2013  Summary Slides
This project applied N,P,K, and S strips (similar to N-Rich) in farmer fields across the state of Oklahoma. The goal is to have 40 + fields. Through this project we will evaluate the response to the applied nutrients in several soil types and environments to better understand when and where it will be economical to apply N, P, K, and S. 
Graduate Student Assigned: Lance Shepherd

Project supported by the Oklahoma Fertilizer Checkoff Program.

Late Season Foliar N:

Locations: Lahoma, Lake Carl Blackwell Est 2010 concluded in 2013 Summary Slides
This trial evaluates the use of foliar applied N in wheat production. Applications of UAN and CoRoN applied at flag leaf and post flowering are being evaluated to determine the impact on grain yield and grain protein. 
Project supported by the Fluid Fertilizer Foundation for 3 yrs.

Conclusions Published in Fluid Journal Spring 2015.  
PDF of publication

2011-2012

2011-2012 Results

NPKS Strip applicaiton:
Locations: Farmer Fields
This project will apply N,P,K, and S strips (simular to N-Rich) in farmer fields across the state of Oklahoma. The goal is to have 40 + fields. Through this project we will evaluate the reponse to the applied nutrients in several soil types and environments to better understand when and where it will be economical to apply N, P, K, and S.
Graduate Student Assigned: Lance Shepherd
Project supported by the Oklahoma Fertilizer Checkoff Program.

SBNRC impact on nitrogen fertlizer use in winter wheat in Oklahoma 
Locations: 6 fields in Major County
This trial evaluates reccomendation differences between SBNRC and typical Farmer Practice.
Project supported by the USDA through CIG grant.

SBNRC impact on Soil Nitrate Levels in Canadian River watershed. 
Locations: 4 fields near Calumet
This trial evaluates impact of SBNRC and Farmer Practices on yield and residual soil nitrates over multiple years. Large Scale Study.
Project supported by the EPA 319.

Foliar N Trial:  
Locations: Lahoma, Lake Carl Blackwell Est 2010
This trial evaluates the use of foliar applied N in wheat production. Applications of UAN and CoRoN applied at flag leaf and post flowering are being evaluated to determine the impact on grain yield and grain protein.
Project supported by the Fluid Fertilizer Foundation for 3 yrs.


NUE Improvement of Winter Wheat:

Locations: Tipton
This trial evaluates high throughput methods to identify NUE efficienct breeding lines.
Project supported by the USDA through AFRI T-CAP Grant.


Mosiac P and K product evaluation  
Locations: Lake Carl Blackwell and Lahoma
This trial evaluates P and K products produced by the Mosiac Company in winter wheat production.
Project supported by the Mosiac Co.

2010-2011

 

Results from the 2010-2011 Winter Wheat Trials

Foliar N Trial:
Locations: Lahoma, Lake Carl Blackwell Est 2010
Project supported by the Fluid Fertilizer Foundation for 3 yrs.

Nutrient Product Trial:
Locations: Lahoma, Lake Carl Blackwell
This trial evaluates products that are currently being sold in Oklahoma
2009-10 Eval:
AVAIL
Nitamin
Dura-N
CoRoN

 

 

Slow Release Product Trials:
Locations: Hennessey (Conventional Till), Lake Carl Blackwell (no-till) Est. 2008 Finalize 2012
This trial evaluates products that are currently being sold in Oklahoma under convential and no-till farming.
2009-10 Eval:
ESN
Nutrisphere
Agrotain
Project Supported by the: Southern Regional Water Resource Project.

2009-10

2009-10 Results


2008-09 Eval: 3 locations established, 2 lost to weather.
Lahoma site harvested with 45 bushel average. No differences due to product, standard fertility practicies and products yields equaled "new Products".

The first group of yield, Std Dev and Sig reports comes from Lahoma OK the second site of data comes from EFAW Research station near Stillwater.

Reslults from 2009 Nut. Product Trial

Sig Dif: Significant Difference. If ns is in the column there was no significant differnence and treatment did not impact yield. If a * appreas the trt was significantly less than maximum.

Completed Trials

Large Scale Implementation of Sensor Based N Fertilizer Recommendations PDF

After two years and 14 harvest sites the SBNRC resulted in an overall savings in N and equal yield. At 11 of the 14 sites it would have been more economical to use the SBNRC than the Producers typical rate. See the PDF for Yield and Protein data along with a summary.

Yr 1 Locations: Near Burlington, El Reno, Miami, Afton, Covington
This Trial compares, on a larger scale, the Flat N rate reccomended by a hand held sensor and N-Rich strip(SBNRC), Variable Rate N application using a RT200 GreenSeeker System (VRT) to what the producer applied to the rest of the field (FP). Each plot is 60' by 400' and replicated 3 times in each field.
This trial was initiated on 13 producer fields in the Fall, however because of drought and freeze issues we are down to 9 harvested sites.

Yr 2 Locations: Near Burlington, El Reno, Hollis, Hobart

Seven Trial lcoationsHarvested.
Report of first 7 sites N rate Yield and Econ

Graduate Student Assigned: Jerry May (graduated Employed by Kiowa Co-Op, Kiowa Ks)

 2009-10 Results

 

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