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Filtering by: Date issued sim 2004-04 Peer Reviewed Yes

Irrigation system maintenance, groundwater quality, and improved production

Creator:

Oregon State University. Extension Service and Selker, John S.

Abstract:

We first need to note that the soil nitrogen that makes plants green is primarily in the form of nitrate, and this nitrogen is accessible to plants specifically because it stays dissolved in the soil water. In a typical corn field, where the bulk of the roots are in the...

Resource Type:

Technical Report
Groundwater and nitrogen management in Willamette Valley mint production

Creator:

Oregon State University. Extension Service, Selker, John, and Rupp, David Earl

Abstract:

Directly below commercial mint fields, percolation in excess of 10 ppm of nitrogen as nitrate (NO3 --N), the EPA drinking water standard, occurs for much of the year (Figure 1, page 2). Concentrations rise rapidly after irrigation starts in June, indicating that this nitrogen is being pushed through by irrigation...

Resource Type:

Technical Report