Leopold Center for Sustainable Agriculture
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Farmer perspectives on ecosystems service management, land use targeting and the future of Cornbelt agriculture
The development and use of targeted conservation practices was the subject of modeling, interviews and support tools researched by the project investigators.
Convening the Regional Food Systems Working Group (RFSWG)
This project continued the convening of the Regional Food Systems Working Group (RFSWG) while developing best practices of members and leaders of the steering committee and setting the stage for further activities.
The extent and impact of trust ownership on the sustainability and resiliency of Iowa’s agricultural landscape
The popularity of trusts as a land management tactic has been increasing. Using survey results, an attorney and economics professor examined the kinds of trust arrangements that exist in Iowa and how they might be used to encourage conservation practices and sustainable agricultural management.
Local food in every pot: Growing farmers in northeastern Iowa through public and private partnerships
A group of north Iowa urban women who faced numerous life challenges learned about self-sufficiency through their joint efforts of planning, planting, growing and harvesting produce from a community garden.
Machinery management for small- and medium-sized horticultural farms
Machinery and equipment needs are far different for vegetable farms than for commodity production units. This project explored the unique machinery access options for small and mid-sized horticulture operations.
Understanding soil organic matter change: Modeling root and soil interactions across agricultural landscapes
What are some options for enhancing organic content and carbon storage in soils that have been used in intensive row-crop production? The project looked at bioenergy feedstocks and how they might be employed to improve soil properties.
The Long-Term Agro-ecological Research (LTAR) experiment: Ecological benefits of organic crop rotations in terms of crop yields, soil quality, economic performance and potential global climate change mitigation
Work continues in Year 16 of a long-term experiment comparing organic and conventional crop rotations. Adverse weather conditions in 2013 affected the production and performance of several crops in the rotations being studied. As a consequence of extended wet weather in spring, poor stands, delayed weed management and subsequent high weed populations, organic soybean yields were 26 percent lower than 2012. Organic corn yields were, however, greater than conventional corn, even when re-planting occurred on June 8.
Innovative equipment solutions to reduce costs and improve productivity for small-scale fruit and vegetable growers
An array of equipment is available to help fruit and vegetable growers with specialized production and processing tasks. This study examined ways for these small operators to share equipment and maximize their use of the shared implements.
What drives corn yield stability in the context of climate variability?
The links between nitrogen fertilizer rates and varying crop rotation schemes are examined in this project. The role that organic matter inputs play in supporting corn-soybean rotations also was investigated.
Niche markets in the agricultural enterprise mix: Farm profit optimization and risk analysis
An existing MS Excel computer-based program (FARMOR) was further developed and enhanced to assist niche market producers in making appropriate and profitable choices for their enterprises.