Index Catalog // ScholarsArchive@OSU

Organic soil amendments and mulches for blueberry : the good, the bad, and the ugly

Creator:: Sullivan, Dan M.
Abstract:: A review of research conducted at OSU to determine compost value as a mulch or soil amendment for blueberry produced under conventional, transitional, or organic production systems.
Resource Type:: Conference Proceeding
Full Text:: Citation: Sullivan, Dan M. 2015. Organic soil

The Effects of Structure and Volcanic Stratigraphy on Groundwater and Surface Water Flow: the Hat Creek basin Case Study, California, USA

Creator:: Marcelli, Marina F.
Abstract:: Hydrogeologic systems in the southern Cascade Range develop in volcanic rocks where volcanic morphology, stratigraphy, extensional structures and attendant basin geometry play a central role in groundwater-flow paths, groundwater/surface-water interactions, and spring discharge locations. High-volume springs (> 3 m3/s) flow from young (< 1 Ma) volcanic rocks in the Hat...
Resource Type:: Masters Thesis
Full Text:: discharge locations. High-volume springs (> 3 m3/s) flow from young (< 1 Ma) volcanic rocks in the Hat

Using The MPA Guide to Better Understand Global Marine Conservation Efforts

Creator:: McArthur, Madeleine G.
Abstract:: Across the globe, Marine Protected Areas (MPAs) have been established to protect biodiversity, sustain fisheries, and preserve cultural resources. However, there exist broad differences among MPAs with respect to their establishment stage and protective regulations, making it difficult to quantify how much ocean protection is actually occurring. This thesis utilizes...
Resource Type:: Honors College Thesis
Full Text:: _____________________________________________________________________ Jenna Sullivan-Stack Committee Member, representing Integrative Biology

Measuring ammonia loss using field-scale and laboratory techniques

Creator:: Heinrich, Aaron and Sullivan, Dan M.
Abstract:: Following the surface application of urea to soil, there is the potential for nitrogen (N) loss from ammonia (NH3) volatilization until sufficient rain or irrigation has moved it into the soil. Many studies measuring NH3 loss have used laboratory and microplot field studies. The limitation of these techniques is that...
Resource Type:: Conference Proceeding
Full Text:: Citation: Heinrich, A. and D.M. Sullivan. 2017

Estimating in-situ N mineralization rate with a buried bag method

Creator:: Sullivan, Dan M. and Moore, Amber D.
Abstract:: Accurate estimates of soil nitrogen (N) mineralization rate and timing are needed for refining N management practices. This paper describes a buried bag method that has been successfully included within agronomic field trials in the Pacific Northwest, USA. We have found this method to be technically simple and reproducible, and...
Resource Type:: Poster
Full Text:: mineralization rate with a buried bag method Dan M. Sullivan and Amber D. Moore Oregon State University

Refining nitrogen management for organic broccoli production

Creator:: Sullivan, Dan M., Peachey, Ed, and Donaldson, Andrew
Abstract:: Specialty organic fertilizers used in organic vegetable production are expensive. So, from environmental and economic perspectives, growers want to maximize nitrogen (N) fertilizer use efficiency by the crop. This research was conducted to (1) determine sufficient N fertilizer rates for organic broccoli, (2) evaluate the efficacy of a specialty organic...
Resource Type:: Presentation
Full Text:: Refining nitrogen management for organic broccoli production Dan M. Sullivan, Ronald (Ed) Peachey, Andrew

Compost quality attributes, measurements and variability

Creator:: Sullivan, Dan M. and Miller, Robert O.
Abstract:: This chapter addresses compost quality specifications, chemical and physical properties of compost, evaluation of compost maturity and stability, and variability in compost analytical data.
Resource Type:: Part of Book
Full Text:: 1Dan M. Sullivan, Dept. of Crop and Soil Science, Oregon State University, Corvallis, OR 97333

Behavior of cross-laminated timber diaphragm connections with self-tapping screws

Creator:: Sullivan, Kyle, Miller, Thomas H., and Gupta, Rakesh
Abstract:: Monotonic and cyclic tests were carried out to determine strength and stiffness characteristics of 2.44 m (8 ft) long shear connections with 8 mm and 10 mm diameter self-tapping screws. The goal of this research is to compare test values of cross-laminated timber (CLT) diaphragm connections in seismic force-resisting systems...
Resource Type:: Article
Full Text:: Seismic Connections A B S T R A C T Monotonic and cyclic tests were carried out to determine strength

Land-use in the Willamette Valley from 2004-2017

Creator:: Strimbu, Bogdan M., Mueller-Warrant, George, and Trippe, Kristin
Abstract:: The Willamette Valley, bounded on the west by the Coast Range and on the east by the Cascade Mountains, is the largest river valley completely confined to Oregon. The fertile valley soils combined with a temperate, marine climate create ideal agronomic conditions for seed production. Historically, seed cropping systems in...
Resource Type:: Dataset

Agronomic biosolids application rates for dryland wheat across a range of northwest climate zones

Creator:: Sullivan, Dan M., Bary, Andrew I., Cogger, Craig G., and Shearin, Todd E.
Abstract:: Predicting agronomic rates is important to derive optimum economic and environmental benefits from biosolids fertilizer applications. We conducted this research to 1) evaluate dryland wheat response to biosolids applications over a range of climate zones in the Pacific Northwest and 2) compare agronomic application rates predicted from yield curves with...
Resource Type:: Conference Proceeding
Full Text:: CLIMATE ZONES Dan Sullivan, Andy Bary, and Craig Cogger OSU Associate Professor of Soil Science

ScholarsArchive@OSU

Organic soil amendments and mulches for blueberry : the good, the bad, and the ugly

The Effects of Structure and Volcanic Stratigraphy on Groundwater and Surface Water Flow: the Hat Creek basin Case Study, California, USA

Using The MPA Guide to Better Understand Global Marine Conservation Efforts

Measuring ammonia loss using field-scale and laboratory techniques

Estimating in-situ N mineralization rate with a buried bag method

Refining nitrogen management for organic broccoli production

Compost quality attributes, measurements and variability

Behavior of cross-laminated timber diaphragm connections with self-tapping screws

Land-use in the Willamette Valley from 2004-2017

Agronomic biosolids application rates for dryland wheat across a range of northwest climate zones

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