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Roadside Revegetation

RoadsideReveg_PollinatorHabitat_DRAFTv1-1_sept2016

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PLANNING PHASE TWO: ASSESS SITE<br />

Table 5-3 | Soil testing methods<br />

Common soil testing methods for the western United States (Horneck and others 1989; Munshower<br />

1994; Teidemann and Lopez 2004). Note: Composts use a different set of tests due to high organic<br />

matter (see Section 10.1.4, Topsoil, and Section 10.1.5, Organic Matter Amendments).<br />

Tests Type Test Method Notes<br />

Boron Available Hot-Water<br />

Boron Available Aqueous extract of a soil paste<br />

Calcium, Magnesium Available Ammonium Acetate<br />

Calcium, Magnesium Available Aqueous extract of a soil paste In semi-arid to arid soils<br />

Molybdenum Available Ammonium oxalate-oxi acid extraction<br />

Nitrate Available Aqueous extract of a soil paste (Saturated paste) Accepted extrant for western soils<br />

Nitrate Available CaO extract & Cd reduction<br />

Nitrogen (ammonium<br />

and nitrate)<br />

Nitrogen<br />

(Mineralizable)<br />

Available<br />

Slowly -<br />

Available<br />

KCL Extraction<br />

Anaerobic Incubation<br />

Nitrogen (Total) Total Kjeldahl N<br />

Nitrogen (Total) Total Combustion (Leco Instrument)<br />

Organic Matter Total Loss - Ignition Best used for soil high in or-ganic matter<br />

Organic Matter Total Walkley-Black Method<br />

Organic Matter Total Combustion (Leco Instrument) Reports out in Total C<br />

pH<br />

Aqueous extract of a soil paste (saturated paste)<br />

Phosphorus Available Olsen Sodium Bicarbonate For arid and semi-arid soils<br />

Phosphorus Available Dilute Acid-Flouride (Bray-P1) For mesic sites<br />

Phosphorus Available AB-DIPA Reports out at half the rates of Olsen method<br />

Potassium Available Sodium Acetate<br />

Potassium Available Olsen Sodium Bicarbonate For arid and semi-arid soils<br />

Potassium Available Ammonium Acetate<br />

Sodium Available Ammonium Acetate Displacement<br />

Sodium Available CTPA<br />

Sulfate Sulfur Available Aqueous extract of a soil paste (saturated paste)<br />

Sulfate Sulfer Available CaHPO4 & ICP<br />

Zinc, Copper,<br />

Manga-nese, Iron<br />

Available CTPA Iron is not performed in Oregon because not<br />

found deficient<br />

<strong>Roadside</strong> <strong>Revegetation</strong>: An Integrated Approach to Establishing Native Plants and Pollinator Habitat<br />

96

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