Transforming Agriculture, Perennially
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Agricultural Research & Scientific Publications

The Land Institute’s work advances agricultural scientific knowledge and is conducted in an innovative yet rigorous professional context. Explore our findings and ideas via articles authored or co-authored by members of our staff and published in peer-reviewed journals.

If you’re looking for popular media mentions of The Land Institute, visit our Media Coverage page.

Author: Liz Koziol, Timothy E. Crews, and James D. Bever
Publication: Agronomy

Perennial polyculture cropping systems are a novel agroecological approach used to mirror some of the ecological benefits provided by native perennial ecosystems including increased carbon and nitrogen storage, more stable…

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Author: Olivier Duchene, Florian Celette, Matthew R. Ryan, Lee R. DeHaan, Timothy E. Crews, Christophe David
Publication: Agriculture, Ecosystems and Environment

Western European agriculture is largely defined by the high level of productivity of its cereal grain production. Such productivity is largely a result of farm specialization and intensification. This approach…

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Author: Steve Larson, Lee DeHaan, Jesse Poland, Xiaofei Zhang, Kevin Dorn, Traci Kantarski, James Anderson, Jeremy Schmutz, Jane Grimwood, Jerry Jenkins, Shengqiang Shu, Jared Crain, Matthew Robbins, Kevin Jensen
Publication: Theoretical and Applied Genetics

Abstract Allohexaploid (2n = 6x = 42) intermediate wheatgrass (Thinopyrum intermedium), abbreviated IWG, is an outcrossing perennial grass belonging to the tertiary gene pool of wheat. Perenniality would be valuable option for grain production,…

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Author: Claudia Ciotir, Wendy Applequist, Timothy E Crews, Neculai Cristea, Lee R DeHaan, Emma Frawley, Sterling A Herron, Robert Magill, James S Miller, Yury Roskov, Brandon Schlautman, James C Solomon, Andrew Townesmith, David Van Tassel, James L Zarucchi, Allison Miller
Publication: Plants, People, Planet

Agroecosystems are constantly evolving to meet the needs of a growing population in a sustainable manner. Concerns about ecological impacts of agriculture, including soil loss, have focused attention on crops…

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Author: Ebony G Murrell, Swayamjit Ray, Mary E Lemmon, Dawn S Luthe, Jason P Kaye
Publication: Renewable Agriculture and Food Systems

Abstract: Arbuscular mycorrhizal fungi (AMF) can increase plant nutrient uptake and chemical defense production, both of which can improve plants’ ability to resist insect herbivory. Cover crops—non-commercial species planted in…

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Author: Jacob M. Jungers, Lee H. DeHaan, David J. Mulla, Craig C. Sheaffer, Donald L. Wyse
Publication: Agriculture, Ecosystems, and Environment

Abstract: Global expansion of high-input annual grain crops and associated nitrogen (N) fertilizer use can have negative consequences for the environment and human health. Nitrate nitrogen (NO3-N) leaching from fertilized…

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Author: Timothy E. Crews, Wim Carton, & Lennart Olsson
Publication: Global Sustainability

Non-technical summary: Modern agriculture is associated with numerous environmental predicaments, such as land degradation, water pollution, and greenhouse gas emission. Socio-economically, it is characterized by a treadmill of technological change, increased…

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Author: Stephan Reinert, Kennedy L. Money, Greta B. G. Rockstad, Nolan C. Kane, David L. Van Tassel, and Brent S. Hulke
Publication: Euphytica

Abstract: Organic dormancy, the inability to germinate under favorable conditions, is a common problem in many crop species and their wild relatives, leading to more variable emergence, plant density, and…

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Author: Wes Jackson, Aubrey Streit Krug, Bill Vitek, and Robert Jensen
Publication: Ecological Citizen

The development of agriculture is one of the key fault lines in human history, the starting point for the human project of dominating the planet. As the catastrophic consequences of…

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Author: Timothy E. Crews and Douglas J. Cattani
Publication: Sustainability

Abstract: The development of new perennial crop species is gaining momentum as a promising approach to change the fundamental nature of ecosystem processes in agriculture. The ecological argument for perennial…

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Author: Lei Lei, Genqiao Li, Hailin Zhang, Carol Powers, Tilin Fang, Yihua Chen, Shuwen Wang, Xinkai Zhu, Brett F Carver, Liuling Yan
Publication: Plant Biotechnology Journal

Summary: Wheat (Triticum aestivum) has low nitrogen use efficiency (NUE). The genetic mechanisms controlling NUE are unknown. Positional cloning of a major quantitative trait locus for N-related agronomic traits showed…

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Author: Ebony Murrell
Publication: Science Trends

The impacts of climate change are already being felt by farmers in many parts of the world. As such, it is important for us to determine which strategies may help…

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