Organic vegetable growers rely on legume cover crops as an economical source of plant-available N. This research evaluated N contributions to summer vegetable crops by cover crops (CC) residues by monitoring soil nitrate (NO3-N) concentrations during the summer crop growing season. Replicated field plots were established with three CC mixes:...
Organic vegetable growers rely on legume cover crops as an economical source of plant-available N. This research evaluated N contributions to summer vegetable crops by cover crops (CC) residues by monitoring soil nitrate (NO3-N) concentrations during the summer crop growing season. Replicated field plots were established with three CC mixes:...
In many on-campus classes, collaborative projects engage students in shared creative experiences. Verbal and nonverbal interactions within the classroom provide lessons in group decision-making, brainstorming, teamwork, and leadership. This type of interaction is more challenging for students taking online classes. Virtual Reality (VR) can potentially be an alternative to this...
The Oregon Processed Vegetable Commission (OPVC) is one of twenty-three commodity commissions that fall under the jurisdiction of the Oregon Department of Agriculture (ODA). In 2020, the OPVC was successfully awarded a 3-year grant under the FDA’s Specialty Crop Block Grant Program (SCBGP) to conduct ‘Market Research and Development to...
This study is an ethnographic investigation of residential turnover, organizational memory, and the persistence of Lost Valley, an Oregon ecovillage founded in 1989. Literature on organizational turnover, memory, and persistence is reviewed and integrated with scholarship on intentional communities and ecovillages, generating a theoretical framework for data collection and analysis....
This thesis presents a novel design for a rheometer style viscometer by implementing high temperature and inert atmospheric requirements on the device. The goals of this device are to measure the viscosity of high temperature molten salts, which are corrosive and extremely hydroscopic. It also aims to be able to...
Many online learning environments use prerecorded video lectures as a primary mode for disseminating learning content. Despite the commonality of this lecture-based video format, it is not clear to what degree video length and the incorporation of active learning elements influence learner success. We investigated the efficacy of segmenting pre-recorded...
In 2020, the Holiday Farm Wildfire burned ~18 % of the McKenzie sub-basin in Oregon, USA. To investigate the impact of the wildfire on in-stream dissolved organic carbon (DOC) concentrations, we collected water samples from 129 stream sites within the McKenzie sub-basin stream network over four distinct seasonal wetness conditions...