|Lieser, M - USDA-NRCS|
|Weiser, H - USDA-NRCS|
|Kunze, B - USDA-NRCS|
Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: October 25, 2001
Publication Date: October 25, 2001
Citation: OLNESS, A.E., LIESER, M., WEISER, H., KUNZE, B., RINKE, J.L. ASSESSMENT OF ACTIVE SOIL INORGANIC CHEMISTRY THROUGH RESIN-EXTRACTION OF FOUR SOILS. CD-ROM. MADISON, WI: ASA-CSSA-SSSA. 2001. Technical Abstract: Optimal resource management requires appropriate information. Development in crop breeding and advances in plant genetics provide new insights into plant potential. Resin extraction has the potential of identifying soil resource differences to which plants respond. Resin extraction technique was applied to samples of 4 adjacent soils (Barnes, Buse, Langhei, and Svea) collected on 23 sites in MN, ND and SD. Extracts were analyzed for 2 elements by inductively coupled plasma. Samples were also analyzed for texture, bicarbonate extractable P, pH, organic C and total N. Extracted suites of elements were unique for each of the soils. While traditional anions such as S, As, B, and P were usually found on anion exchange resins for 3 of the soils, as much as 90% of these extractable elements were found on the cation exchange resin for the Langhei soil. It is suggested that large amounts of readily extractable cations such as Ca were responsible for complexation of anions in the Langhei soil. Resin-extractable P was correlated with bicarbonate extractable P but the relationship was unique in each soil; this suggests that interpretations of test results by soil mapping unit are needed. Also, ratios of resin-extractable elements that correlate with plant response differed between soils and suggest that specific fertilizers and their placements affect resource use efficiency.