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Agriculture, Ecosystems and Environment, ISSN 0167-8809, 03/2020, Volume 290, p. 106761
Journal Article
Journal Article
Science of the Total Environment, ISSN 0048-9697, 05/2020, Volume 717, p. 137165
Dissolved organic matter (DOM) represents an essential component of the carbon cycle and controls biogeochemical and ecological processes in aquatic systems.... 
Excitation-emission matrix fluorescence | Allochthonous DOM | Autochthonous DOM | Parallel factor analysis | Long term agroecosystem research (LTAR) | Optical properties
Journal Article
AGRONOMY-BASEL, ISSN 2073-4395, 11/2019, Volume 9, Issue 11, p. 699
The Great Plains of the USA is one of largest expanses of prairie ecosystems in the world. Prairies have been extensively converted to other land uses. The... 
AGRONOMY | FOOD SECURITY | MANAGEMENT | FORAGE | CO2 | AGRICULTURE IMPLICATIONS | SOIL CARBON | TRENDS | PLANT SCIENCES | long-term agroecosystem research network | rotational grazing | CONSERVATION | CLIMATE IMPACTS | ENCROACHMENT | LTAR | ltar
Journal Article
Agroecology and Sustainable Food Systems, ISSN 2168-3565, 07/2018, Volume 42, Issue 6, pp. 620 - 628
To most effectively integrate research across scales and disciplines, long-term system experiments (LTSE) can serve as a valuable tool in agroecological... 
long-term system experiments | Agroecology | systems research | TRANSDISCIPLINARY | GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY | CROPPING SYSTEMS | AGRICULTURE, MULTIDISCIPLINARY | ECOLOGY | Multidimensional data | Agricultural ecosystems | Agricultural practices | Agricultural research | Agricultural economics | Agronomy
Journal Article
HORTTECHNOLOGY, ISSN 1063-0198, 07/2002, Volume 12, Issue 3, pp. 345 - 354
Sales of organic products reached $8 billion in the U.S. in 2000, continuing the nearly decade-long trend of 20% annual growth. In Iowa alone, organic... 
ROTATION | PROFITABILITY | MANAGEMENT | compost | long-term research | LOW-INPUT | HORTICULTURE | soil quality | NITROGEN-SOURCE | PRODUCTIVITY | CORN | farming systems research | LEGUME COVER CROPS | MID-ATLANTIC | organic | Soil quality | Compost | Long-term research | Farming systems research | Organic
Journal Article
Renewable Agriculture and Food Systems, ISSN 1742-1705, 6/2004, Volume 19, Issue 2, pp. 80 - 91
Based on citizen demand, Iowa State University (ISU) established the first organic specialist faculty position at a US land grant university in 1997, as a... 
Organic fertilizers | Research Papers | Sustainable agriculture | Organic certification | Research grants | Focus groups | Organic farming | Land grant universities | Organic farms | Agroecology | Agroforestry | outcomes-based | extension | producer-driven | focus groups | long-term research | AGRICULTURE, MULTIDISCIPLINARY | surveys | Agriculture
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