The LTAR Cropland Common Experiment at Upper Mississippi River Basin–Ames

IF 2.2 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Journal of environmental quality Pub Date : 2024-10-27 DOI:10.1002/jeq2.20646
John L. Kovar, Athanasios N. Papanicolaou, Dennis L. Busch, Amit Chatterjee, Kevin J. Cole, Brent J. Dalzell, Bryan D. Emmett, Jane M. F. Johnson, Robert W. Malone, Amy J. Morrow, Laurie W. Nowatzke, Peter L. O'Brien, John H. Prueger, Natalia Rogovska, Sabrina J. Ruis, Dennis P. Todey, Ken M. Wacha
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Abstract

Agricultural systems evolve from the interactions of climate, crops, soils, management practices (e.g., tillage, cover crops, nutrient management), and economic risks and rewards. Alternatives to the corn (Zea mays L.)–soybean [Glycine max (L.) Merr.] (C–S) cropping systems that dominate in the US Midwest may provide more sustainable use of resources, reduce the documented environmental impacts of current C–S systems, and improve production efficiency and ecosystem services. Innovative management practices are needed to offer producers options to increase farm resilience to variable weather conditions and offset negative environmental impacts. In response to this need, the Upper Mississippi River Basin Long-Term Agroecosystem Research network site at Ames, IA, established a cropland experiment in 2016 to investigate an alternative crop management system that includes reduced tillage, cover crops, and right source, right rate, right time, and right place (4R) nitrogen (N) management. The experimental site is located on the Iowa State University Kelley Research Farm in Boone County, IA. Crop, soil, air, and tile drainage water measurements are made throughout the year using published methods for each agronomic and environmental metric. Our goal is to provide quantitative information to farmers, consultants, agribusiness partners, and state and federal agencies to help guide decisions on the effective use of alternative management practices. Future changes in experimental treatments will adopt a knowledge co-production approach whereby researchers and stakeholders will work collaboratively to identify problems, implement research protocols, and interpret results.

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密西西比河上游流域-梅斯的 LTAR 耕地共同试验。
农业系统是在气候、作物、土壤、管理方法(如耕作、覆盖作物、养分管理)以及经济风险和回报的相互作用下演变而来的。玉米(Zea mays L.)-大豆[Glycine max (L.) Merr.](C-S)种植系统是美国中西部地区的主要种植系统,其替代品可提供更可持续的资源利用,减少当前 C-S 系统对环境的有据可查的影响,并提高生产效率和生态系统服务。需要创新的管理方法为生产者提供选择,以提高农场对多变天气条件的适应能力,并抵消对环境的负面影响。为满足这一需求,密西西比河上游流域长期农业生态系统研究网络位于美国内华达州艾姆斯的站点于 2016 年建立了一个耕地实验,以研究一种替代作物管理系统,其中包括减少耕作、覆盖作物以及适源、适量、适时、适地(4R)的氮(N)管理。实验地点位于美国爱荷华州博恩县的爱荷华州立大学凯利研究农场。采用已公布的农艺和环境指标方法,全年对作物、土壤、空气和瓦片排水进行测量。我们的目标是为农民、顾问、农业企业合作伙伴以及州和联邦机构提供定量信息,以帮助指导有效使用替代管理方法的决策。未来实验处理方法的改变将采用一种知识共同生产方式,即研究人员和利益相关者将合作确定问题、实施研究方案和解释结果。
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来源期刊
Journal of environmental quality
Journal of environmental quality 环境科学-环境科学
CiteScore
4.90
自引率
8.30%
发文量
123
审稿时长
3 months
期刊介绍: Articles in JEQ cover various aspects of anthropogenic impacts on the environment, including agricultural, terrestrial, atmospheric, and aquatic systems, with emphasis on the understanding of underlying processes. To be acceptable for consideration in JEQ, a manuscript must make a significant contribution to the advancement of knowledge or toward a better understanding of existing concepts. The study should define principles of broad applicability, be related to problems over a sizable geographic area, or be of potential interest to a representative number of scientists. Emphasis is given to the understanding of underlying processes rather than to monitoring. Contributions are accepted from all disciplines for consideration by the editorial board. Manuscripts may be volunteered, invited, or coordinated as a special section or symposium.
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