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Filtering by: Creator Frey, Paul Reheard Committee Member Sullivan, Dan

Fatty acid profiling of soil microbial communities : a comparison of extraction methods and temporal dynamics in plant residue amended soils

Creator:

Fernandes, Marcelo Ferreira

Abstract:

A method based on fatty acid (FA) analysis is used to profile microbial community structure (MCS). Various extraction protocols are available, which alter the types of FAs extracted from soils. The more time consuming but widely used protocol extracts only FAs from phospholipids (PLFA). This technique is desirable because PLFAs...

Resource Type:

Dissertation
Nitrogen mineralization from organic amendments during the second year following application

Creator:

Kusonwiriyawong, Charirat

Abstract:

Estimates of nitrogen (N) available from long-term application of organic amendments are required to balance N inputs with crop N requirements. Two studies were conducted to (1) determine N mineralized from organic amendments (manures and composts) during year 2 after application, and (2) compare plant-available N (PAN) determined via in...

Resource Type:

Masters Thesis

Full Text:

denitrification (Paul and Zebarth, 1997; Calderon et al., 2004), ammonia volatilization (Bussink and Oenema, 1998
Brassicaceae Seed Persistence and Dormancy in the Willamette Valley

Creator:

Flick, Gabriel D.

Abstract:

Producers in the Willamette Valley of Oregon are interested in growing canola as a rotational crop in grass seed and cereal rotations. Many other Brassicaceae seed crops also are produced within the valley. Concerns of seed persistence and volunteer contamination of Brassicaceae seed crops prompted the investigation of seed persistence...

Resource Type:

Dissertation