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Filtering by: Subject Nitrates -- Environmental aspects -- Oregon -- Morrow County Advisor Selker, John S.

Monitoring potential groundwater contamination due to agricultural production in Lane County, Oregon

Creator:

Gatchell, Lance O.

Resource Type:

Masters Thesis

Full Text:

subsurface samplers. Soil cores were collected on five farms in Lane County, Oregon at 1 m depth and soil
An eleven year study of nitrate leaching in vegetable production with winter cover crops

Creator:

Feaga, Jeff

Abstract:

The Willamette Valley of Oregon has high rates of winter precipitation that cause leaching losses of residual fertilizer nitrogen (N) as nitrate (NO₃). Cover crops may have potential to mitigate N loss. Shallow groundwater was sampled for 11 years from plots planted in summer vegetables with and without winter cover...

Resource Type:

Masters Thesis
Chemical and isotopic patterns of nitrate variability in the southern Willamette Valley, Oregon

Creator:

Vick, Christopher Flanders

Abstract:

A relatively stable, persistent and historical problem with elevated NO₃⁻ concentrations in rural drinking wells in the southern Willamette Valley, Oregon is evident. What is the origin of NO₃⁻ in rural drinking water wells in this area? The answer to the question is not simple. Many non-point sources contribute to...

Resource Type:

Masters Thesis