Farm Focus

2005 Research

Introduction
 
 

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The information in this booklet is the result of the efforts and contributions of a lot of people and corporations.  It is our desire to recognize and “THANK” each of them for their support.

 
BASF DuPont/Pioneer Select Seeds
Bayer CropSciences Garst Seeds Sipcam Agro USA
Corn Belt Hybrids Golden Harvest Seeds Syngenta
Croplan Genetics LG Seeds Valent USA
Dekalb/Asgrow/Monsanto NK Brand Seeds Wellman Seed
Dow AgroSciences Seed Consultants  

 

v      Marsh Foundation and Vantage Career Center for their support of farm ground.  Special thanks to Randy Patterson and Larry Shields from the Marsh Foundation for their help in planting and harvesting season.

v      Van Wert County Foundation and the Van Wert County Commissioners for their financial support of Farm Focus and OSU Extension- Van Wert County.

v      Farm Focus Research Committee for their help in deciding and planning the research to be done.

v      OSU Extension Support Staff- Marilyn Reed and Deb Knapke, and Experience Works enrollee Janet Schmidt for their help in preparing the booklet.

The reports contained in this booklet are the results of the research plot work conducted at Farm Focus.  Most of the research conducted by Van Wert County Extension is systematically designed to allow for statistical analysis of the results.  To achieve this we utilize three key statistical concepts: randomization, blocking, and replication.  We also had a trial where we did a comparison between only two treatments in a split-planter design.  This simple setup allows for paired treatment blocking and replication, but no randomization.  Below are some definitions of common statistical references used in this book:

F - The F statistic is used to help identify if the differences between treatment means are due to background noise or the actual treatment.  If there are no differences between treatments, the F statistic will be less than or near 1.

LSD (0.05) - Least Significant Difference (LSD) tests for significance between individual treatments.  Two treatments are considered statistically different if they differ by more than the LSD.  For example, if a given hybrid yields different from another hybrid by as much or more than the LSD (0.05) value, then we are 95% confident that the yield difference is real.

CV (Coefficient of Variation) - The CV is a measure of relative variation.  When comparing two trials, the trial with the lower CV has relatively less variation.

Paired t-test – This test looks at the differences between two paired treatments and reports the probability that the mean differences are significant when compared to the expected t-value (expected t-value varies based on the number of replications of the paired treatments).

Statistically significant difference - A difference that is beyond what might be expected by chance alone. 

We believe this booklet provides a valuable, unbiased source of information for farmers to use as a decision making tool in their operation.  We also believe it is best to utilize multiple sources of information when making an informed decision before adopting new agronomic practices.

             Andy Kleinschmidt                                         Gary Prill

             Extension Agent                                               Program Manager

             Agriculture & Natural Resources                  Farm Focus/Research Program

          Van Wert County                                              Van Wert County

Questions or comments are always welcome.  Contact The Ohio State University Extension Office at 1055 South Washington St., Van Wert, OH  45891, or call (419) 238-1214.

TABLE OF CONTENTS


HERBICIDE KEY
 

AMS= Ammonium Sulfate
COC= Crop Oil Concentrate                    
MSO= Methylated Seed Oil                         
NIS= Nonionic Surfactant
UAN= Urea Ammonium Nitrate
v/v= Volume to Volume
GENERAL KEY
 

CV= Coefficient of Variation
ECB= European Corn Borer               
LSD= Least Significant Difference               
NS= Not Significant
ppm= Parts per Million
VRT= Variable Rate Technology
You will need Adobe Acrobat Reader to view these reports.
Click here to download this free software!

Click on the Report Title to link to each document below:

To contact us:

Farm Focus
1055 South Washington Street, Van Wert, Ohio 45891
Telephone: 419 238-1214  FAX: 419 238-3276
For General Information contact: prill.1@osu.edu
Webmaster: webmaster@farmfocusshow.com

 
   
   
   
   
   
   

 

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