Bruner Farm Study for Resilient Economic Agricultural Practices in Ames, Iowa

Principal Investigator(s):  View help for Principal Investigator(s) US Department of Agriculture; National Agricultural Library

Version:  View help for Version V1

Name File Type Size Last Modified
BrunerFarmStudy.zip application/zip 67.6 KB 06/26/2026 11:47:AM
adc_metadata.json application/json 20.9 KB 06/27/2026 05:23:AM
catalog_detail.html text/html 9.5 KB 06/26/2026 11:47:AM

Project Citation: 

US Department of Agriculture, and National Agricultural Library. Bruner Farm Study for Resilient Economic Agricultural Practices in Ames, Iowa. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2026-06-27. https://doi.org/10.3886/E250402V1

Project Description

Project Title:  View help for Project Title Bruner Farm Study for Resilient Economic Agricultural Practices in Ames, Iowa
Summary:  View help for Summary Bruner Farm Study for Resilient Economic Agricultural Practices in Ames, Iowa Soil P analyzed by Bray P extractant. Soil K analyzed by Ammonium Acetate extractant. For MeasSoilCover estimates: Photos were taken with a Canon, 12.3 megapixel EOS Rebel T3 mounted on a Van-Guard QS-46 large format quick shoe. The monopod that the amera/shoe assembly was attached to is a Wooster Sherlock model R056 telescoping pole. A mounting racket and spirit level (part #’s MSRMB and MSRSLA respectively, available from Cropscan inc. http://www.cropscan.com/mpscs.html) were attached to the pole in a manner so that when the camera is mounted, and the bubble in the spirit level is centered, then the focal plane of the camera is perpendicular to the ground resulting in a nadir image of the ground beneath the camera. The fully extended pole camera assembly was carried diagonally across each plot in field 70/71 an East to West or West to East transect with photos being taken every 9 paces. The unit was angled in such a way that the shadow from the pole and camera was not included in the photo. In the larger plots at the Uthe farm and the Poets facility, 30 to 40 paces were taken between each photo. The self timer on the camera was set for a 10 second delay and the camera was focused before initiating the timer. In most instances, 10 seconds was ample time to maneuver the camera into position for the photo. The cameras motion stabilizer function was turned on and the18mm zoom setting was always used to capture the maximum amount of area in each photo. Cold days, and wind speeds in excess of 30mph present a challenge. Photos were downloaded from the camera with the EOS utility software supplied with the camera and analyzed with sample point version 1.51 with a grid size of 10x10 chosen. A newer version of sample point is available at http://www.samplepoint.org/.


Resources in this dataset:

Resource Title: Bruner Farm Study for Resilient Economic Agricultural Practices in Ames, Iowa. File Name: BrunerFarmStudy.zip

Resource Title: Bruner Farm Study for Resilient Economic Agricultural Practices in Ames, Iowa.

File Name: BrunerFarmStudy.zip
Original Distribution URL:  View help for Original Distribution URL https://agdatacommons.nal.usda.gov/articles/dataset/Bruner_Farm_Study_for_Resilient_Economic_Agricultural_Practices_in_Ames_Iowa/24665337

Scope of Project

Subject Terms:  View help for Subject Terms farming; Environment; NP211; NP212; models; cameras; ammonium acetate; data.gov; ARS
Geographic Coverage:  View help for Geographic Coverage Iowa
Time Period(s):  View help for Time Period(s) 5/12/2005 – 9/11/2017
Data Type(s):  View help for Data Type(s) observational data
Collection Notes:  View help for Collection Notes DOI: 10.15482/USDA.ADC/1504008 Citation: Karlen, Doug (2020). Bruner Farm Study for Resilient Economic Agricultural Practices in Ames, Iowa. U.S. Department of Agriculture - Agricultural Research Service. https://doi.org/10.15482/USDA.ADC/1504008 (Downloaded 2026-06-26)


Related Publications

Download this project

Published Versions

V1 [2026-06-27]

Export Metadata

Dublin Core

DDI 2.5

Report a Problem

Found a serious problem with the data, such as disclosure risk or copyrighted content? Let us know.

This material is distributed exactly as received from the data depositor. ICPSR has not reviewed, checked, or processed this material. For additional information about the study, please contact the investigator(s) directly. If you have questions about the accessibility of materials distributed by ICPSR or require further assistance, please visit ICPSR's Accessibility Center.