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2. Informational needs for local groundwater management decisions
- Collection:
- Agricultural Communications Documentation Center (ACDC)
- Contributers:
- Dee, Norbert (author) and Mlay, Marian (author)
- Format:
- Journal article
- Publication Date:
- 1990-03
- Published:
- USA
- Location:
- Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C16725
- Journal Title:
- Journal of Soil and Water Conservation
- Journal Title Details:
- 45 : 223-225
3. Providing information to farmers for groundwater quality protection
- Collection:
- Agricultural Communications Documentation Center (ACDC)
- Contributers:
- Contant, Cheryl K. (author / Assistant Professor, Urban and Regional Planning, University of Iowa, Iowa City, IA 52242)
- Format:
- Journal article
- Publication Date:
- 1990
- Published:
- USA
- Location:
- Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 83 Document Number: C05034
- Journal Title:
- Journal of Soil and Water Conservation
- Journal Title Details:
- 45 (2) : 314-317
4. Providing information to farmers for groundwater quality protection
- Collection:
- Agricultural Communications Documentation Center (ACDC)
- Contributers:
- Contant, Cheryl K. (author)
- Format:
- Journal article
- Publication Date:
- 1990-03
- Published:
- USA
- Location:
- Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C16723
- Journal Title:
- Journal of Soil and Water Conservation
- Journal Title Details:
- 45 : 314-317
5. Public communication of soil conservation practices: a large-scale content analysis of wisconsin’s agricultural trade publications
- Collection:
- Agricultural Communications Documentation Center (ACDC)
- Contributers:
- Chen, K. (author) and Shaw, B. (author)
- Format:
- Journal article
- Publication Date:
- 2022-02-10
- Published:
- USA: Soil and Water Conservation Society
- Location:
- Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 205 Document Number: D12612
- Journal Title:
- Journal of Soil and Water Conservation
- Journal Title Details:
- V. 77, Iss. 2
- Notes:
- 14pgs, The adoption of soil conservation practices by farmers offers the potential to greatly improve soil health and water quality at large geographic scales. In considering the potential benefits of soil conservation practices to improve ecological outcomes on farms, it is important to ascertain where farmers get their information about soil conservation and what type of information they are exposed to and by whom. One primary way that farmers learn about soil conservation practices is via agricultural trade publications (ATPs). We conducted a content analysis using a computational text analysis method to analyze all the online soil conservation coverage from four influential ATPs in Wisconsin. We focused on 10 different soil conservation practices and found that the most frequently covered soil conservation practices were tillage, manure, and grazing. Additionally, we analyzed the thematic categories for how each soil conservation practice was covered in terms of agricultural, environmental and economic benefits. Generally, articles tended to mention environmental and economic benefits more than agricultural benefits across all soil conservation practices. We also unpacked the subcategories of environmental benefits using cover crops practice as an example to demonstrate how it was covered in terms of subcategories such as biodiversity, sustainability, climate change, water quality, and soil health. Our analysis also looked at how agricultural technology was featured in the stories about soil conservation and found that this category was regularly mentioned for each practice. Finally, we examined the message sources for stories on soil conservation and found that extension and the federal government were the most the frequently cited entities. We also discussed how this form of computational content analysis can provide longitudinal insights about trends in a particular soil conservation practice like cover crops, which showed a clear upward trend in coverage in ATPs for the time period studied. These nuanced content analyses provide insights into what types of thematic categories are featured about soil conservation practices covered in ATPs in Wisconsin. Advocates of soil conservation practices can use our results to determine if some practices could benefit from more attention in ATPs as well as which benefits and themes have received more media coverage. Additionally, stakeholders from entities that serve as different message sources can determine how their organizations are doing as the spokespeople for the soil conservation practices being advocated.
6. Simulated nitrate leaching in annually cover cropped and perennial living mulch corn production systems
- Collection:
- Agricultural Communications Documentation Center (ACDC)
- Contributers:
- Andrews, J.S. (author), Sanders, Z.P. (author), Cabrera, M.L. (author), Hill, N.S. (author), and Radcliffe, D.E. (author)
- Format:
- Research
- Publication Date:
- 2020-01-01
- Published:
- USA: Soil and Water Conservation Society
- Location:
- Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 202 Document Number: D12062
- Journal Title:
- Journal of Soil and Water Conservation
- Journal Title Details:
- Vol. 75, Issue 1
- Notes:
- 12 pages, via Online journal, Corn (Zea mays) grown in the southern Piedmont requires 200 to 280 kg nitrogen (N) ha−1 annually and requires up to 0.87 cm of water per day, making groundwater systems susceptible to nitrate (NO3−) leaching. A perennial white clover (Trifolium repens L.) living mulch (LM) system may reduce NO3-N leaching by using legume N to replace mineral N, though little information is available on such a system in the southern Piedmont. Therefore, a HYDRUS-1D model was used to simulate water and NO3-N flux in three cover crop systems. Cereal rye (Secale cereal L.) (CR), crimson clover (Trifolium incarnatum L.) (CC), and a white clover LM were fertilized with 280, 168, and 56 kg N ha−1. The HYDRUS-1D model was calibrated and validated with observed water contents and NO3-N data that were collected over two years. Water and NO3-N flux models were created for each treatment and evaluated using coefficient of determination, percentage bias, and index of agreement, and showed good agreement to observed data. Nitrate leaching below 1 m in 2015/2016 was 23.5, 12.7, and 21.4 kg ha−1 for the CC, LM, and CR treatments, respectively, but was less than 1 kg ha−1 for all treatments in 2016/2017 due to prolonged drought. Differences in leached NO3-N among treatments were attributed to variation in mineral N application rate and NO3-N uptake by cover crops. Overall, results suggest that the use of a perennial LM system may reduce NO3-N leaching when compared to annual CC and CR cover crop systems.