• Measurement of soil color 

        Author(s):Paul, E. A.; Shields, J. A.; St. Arnaud, R. J.; Clayton, J. S.
        Date Issued:1966-02
        Format:born digital; articles
        The color of cultivated surface samples from Chernozemic and Gray Wooded soils were measured by visual and spectroreflectance methods. Variations in visual color measurements among different observers were of sufficient ...