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Special Publications - SP28-SPA - September 2019

Este artículo describe tanto la biología como las prácticas agronómicas que deben tomarse en cuenta al desarrollar estrategias de coexistencia que proporcionen opciones para que los productores puedan elegir específicamente entre los mercados de productos de la ingeniería genética (GE), los convencionales, y los mercados sensibles a GE. Las prácticas de manejo que utilizan actualmente los productores de la alfalfa Roundup Ready (RRA por sus siglas en inglés) se presentan como un ejemplo de las estrategias desarrolladas por la industria de la semilla de la alfalfa que permiten la coexistencia de diferentes sistemas de producción. Presidente: Allen E. Van Deynze, Centro de Biotecnología de Semillas, Universidad de California, Davis. Septiembre 2008.

Issue Papers - IP64 - April 2019

Agricultural productivity in the United States has doubled over the last 50 years through agricultural intensification and adoption of new innovative technologies. Although efficiency of our agricultural systems has increased, water quality remains a concern with minimal measured improvements observed nationwide. The purpose of this paper is to provide an overview of the processes, conservation practices, and programs that influence the impact of agriculture on surface and groundwater quality. Complexities and difficulties associated with nutrient cycling and transport processes, management decisions and practice trade-offs, and federal conservation program effectiveness create immense challenges to achieving and measuring water quality improvement goals. Development of more precise nutrient recommendations, advancement of water monitoring methods to better differentiate among potential nutrient sources, design and implementation of novel conservation practices that address dissolved nutrient loss and in-stream nutrient retention, increased knowledge of processes influencing nutrient supply and transport, and increased cost-effectiveness of conservation programs integrating regional and industry-based collaboration are needed to continue to improve water quality in agricultural landscapes. Chair: Heidi Peterson, International Plant Nutrition Institute. IP64, April 2019, 20 pp. FREE. Available online and in print (fee for shipping/handling).
(KEYWORDS: nitrogen cycle, phosphorus cycle, cover crops, riparian buffers)

Ag quickCASTs - QC-64 - April 2019

This one-page Ag quickCAST contains excerpted material from its companion CAST document, Reducing the Impacts of Agricultural Nutrients on Water Quality across a Changing Landscape.

CAST Commentaries - QTA2019-1 - March 2019

The purpose of this commentary is to document need for and anticipated benefits of developing data-sharing standards, incentivizing researchers to share data, and building a data-sharing infrastructure within agricultural research. The authors present the factors contributing to the current system of agricultural research that has fostered ambivalence toward data sharing; briefly review the success of data-sharing examples from other domains that offer promise for advancing agricultural research; and describe the advantages and shortcomings of emerging data-sharing platforms, networks, and repositories intended to facilitate data sharing in agriculture. Although they focus on accessing and using the full wealth of data generated by research, the authors realize impact from this effort also requires research in food production to de-emphasize smaller-scale, individual-effort studies and pursue larger efforts integrating social, economic, and environmental components. Thus, the ultimate goal is to advance the conversation among agricultural science partners to create a system conducive to data sharing and the team science that are needed to address the complex, “grand-challenge” questions in food systems. The authors highlight key strategies, roles, and responsibilities of partners in agriculture’s science and data enterprise, and they discuss the business case for data sharing as well as ingredients essential to data preservation and curation. Chair: Sylvie Brouder, Purdue University. QTA2019-1, 20 pp., March 2019, AVAILABLE ONLINE ONLY.

Ag quickCASTs - QTA2019-1 QC - March 2019

This one-page Ag quickCAST contains excerpted material from its companion CAST document, Enabling Open-source Data Networks in Public Agricultural Research. AVAILABLE ONLINE ONLY.

Issue Papers - IP63 - February 2019

Groundwater is the Earth’s most extracted raw material, with almost 1,000 cubic kilometers per year (800 million acre-feet per year) of groundwater pumped from aquifers around the world. Approximately 70% of groundwater withdrawals worldwide are used to support agricultural production systems. This percentage is even higher in arid and semi-arid areas, where the only consistent source of irrigation water is groundwater. In these regions, however, the use of groundwater typically far exceeds the rate at which it is naturally replenished, indicating that these critical groundwater resources are being slowly depleted. Within the United States, groundwater depletion has occurred in many important agricultural production regions, including the Great Plains Region, the Central Valley of California, the Mississippi Embayment Aquifer, aquifers in southern Arizona, and smaller aquifers in many western states. This issue paper reviews the causes and consequences of groundwater depletion, with a focus on impacts to agriculture as the largest sector of groundwater use. This understanding can aid in developing effective policies and practices for groundwater development, use, and management. Chair: John Tracy, Texas A&M University. IP63, February 2019, 20 pp. FREE. Available online and in print (fee for shipping/handling).


Ag quickCASTs - QC-63 - February 2019

This one-page Ag quickCAST contains excerpted material from its companion CAST document, Aquifer Depletion and Potential Impacts on Long-term Irrigated Agricultural Productivity.

Issue Papers - IP62 - September 2018

Food Loss and Waste is a paper in the series on The Need for Agricultural Innovation to Sustainably Feed the World by 2050. Reducing food loss and waste (FLW) is one of the key strategies to combat hunger and sustainably feed the world. This paper provides a critical overview of U.S. FLW through an objective, balanced, and data-driven approach. There are four sections. First, the magnitude of the problem is described using four major data sources at the national level and the different scope and boundaries of these data are compared; there follows a discussion of the three fundamental resources for primary food production—land, water, and fertilizer—that are embedded in the lost and wasted food, plus other resource costs. Second, the authors discuss why FLW occurs, drawing attention to the many issues of the FLW problem at the consumer end—food-wasting behavior, the “whys,” and the interacting influence of psychological, social, cultural, and economic factors; they also describe major actions that are being taken across the nation to decrease FLW. Third, a hard look at existing data on the quantity of food waste prevention, recovery, and recycling is taken by compiling all major sources of data that could be located, providing a “reality check” on how well the country is performing on lessening FLW. Finally, the authors present an interpretative and critical analysis concerning three key issues: How can the United States work toward the 50% reduction goal by 2030 knowingly and confidently? What technological innovations may be game changers? What other approaches could be explored to influence consumer food behavior for the better? Chair: Zhengxia Dou, Clinical Studies/NBC, University of Pennsylvania, Philadelphia. IP62, September 2018, 20 pp. FREE. Available online and in print (fee for shipping/handling).

Ag quickCASTs - QC-62 - September 2018

This one-page Ag quickCAST contains excerpted material from its companion CAST document, Food Loss and Waste.

Issue Papers - IP61 - July 2018

This publication serves to review what is known about poultry egg and meat production with specific attention to available research on free-range production systems. Stressors related to alternatively housed and managed birds, as well as the known advantages and disadvantages for farmers, are reviewed. Food quality and food safety in regard to poultry meat and eggs are often understood by farmers and consumers as one and the same. Clarification of food quality and food safety with regard to poultry production systems will be discussed. The role of farming systems in disease control is included in this discussion. Attention to the environmental system, soil contamination, and manure burdens placed on the land by free-range poultry is also considered. This consolidation of information is aimed at helping further the discussion of free-range poultry as it pertains to larger farming systems and the future of this growing field of niche market poultry production. Cochairs: Jacquie Jacob and Tony Pescatore, University of Kentucky. IP61, July 2018, 20 pp. FREE. Available online and in print (fee for shipping/handling).