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Color, Organic Matter, and Pesticide Adsorption Relationships in a Soil Landscape
Author(s) -
Fernandez R. N.,
Schulze D. G.,
Coffin D. L.,
Van Scoyoc G. E.
Publication year - 1988
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1988.03615995005200040023x
Subject(s) - loam , organic matter , soil water , soil science , environmental science , silt , soil organic matter , adsorption , environmental chemistry , hydrology (agriculture) , geology , chemistry , geomorphology , organic chemistry , geotechnical engineering
Soil color, organic matter content, and adsorption of the pesticide diuron [3‐(3,4‐dichlorophenyl)‐1,1‐dimethylurea] were measured for the silt loam or silty clay loam Ap and Bt or Bg horizons of two toposequences of soils occurring within the same soil landscape in Tippecanoe Co., IN. Close linear relationships ( r 2 > 0.9) were obtained between Munsell value, organic matter content, and diuron adsorption. Color‐organic matter relationships within this landscape appear to be much better than previously reported relationships developed for soils over wider geographic areas. Sensors for measuring soil organic matter content as equipment moves across a field are more likely to be successful if they are calibrated on a field by field basis rather than utilizing relationships developed over a wide geographic area.