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Filtering by: Subject Soil enzymology -- Northwest, Pacific File Format application/pdf

An evaluation of four implements used to till compacted forest soils in the Pacific Northwest

Creator:

Andrus, Charles W., Froehlich, Henry A., and Oregon State University. Forest Research Laboratory

Resource Type:

Technical Report

Full Text:

Pacific Northwest to attempt to rehabilitate the soil in skid trails and landings. Tillage of the soil
Soil moisture and the distribution of lodgepole and ponderosa pine : a review of the literature

Creator:

Tarrant, Robert F., 1918- and Pacific Northwest Forest and Range Experiment Station (Portland, Or.)

Resource Type:

Technical Report

Full Text:

Robert F. Tarrant Pacific Northwest Forest and Range Experiment Station U. S. Department of Agriculture
Estimating the dry matter production, nitrogen requirements, and yield of organic farm-grown potatoes

Creator:

McQueen, John Paul Gainer

Abstract:

As part of a participatory research project, where farmers and Oregon State University researchers collaborated, aspects of potato (Solanum tuberosum L.) growing systems were studied. It was determined through conversations with the farmers that quantification of certain growth parameters of potato was lacking, including dry matter accumulation, crop nitrogen (N)...

Resource Type:

Masters Thesis

Full Text:

Utilization by Pacific Northwest Crops (Sullivan et al., 1999a) estimates that the soil N supply from