862 
Gausman, H.W., Gerbermann, A.H., Wiegand, C.L., Learner, R.R,. Rodriguez, R.W, and Noriega, J.R. . 1975 
Reflectance differences between crop residues and bare soils. Soil Sri. Soc. Am. Proc. 39:752^755. 
Goulas, Y., Moya, I., and Schmuck, G. 1991. Time-resolved spectroscopy of the blue fluorescence of spinach 
leaves. In Proc 5th Int. Coll. Physical Measurements and Signatures in Remote Sensing, Courchevel, France, 14-18 
Jan 1991. ESA SP-319:715-718. 
Guyot, G. 1993. Measurement of plant canopy fluorescence, pp. 77-92. In Varlet-Grancher, C., Bonhomme, R., 
and Sinoquuest, H. (eds), Crop Structure and Light Microclimate: Characterization and Applications. INRA. Paris, 
France. 
Jenkinson, D.S. 1971. Studies on the decomposition of 14-C organic matter in soil. Soil Sri. 11:64-70. 
Laflen, J.M., Amimia, M., and Hintz, E.A.. 1981. Measuring crop residue cover. J. Soil Water Conservation 
36:341-343. 
Lang, M., Stober, F., and Lichtenthaler, H.K. 1991. Fluorescence emission spectra of plant leaves and plant 
constituents. Rad. Environ. Biophys. 30:333-347. 
Lichtenthaler, H.K. and Rinderle, U. 1988. The role of chlorophyll fluorescence in the detection of stress conditions 
in plants. Critical Reviews in Analytical Chemistry, 19, Supple. I: S 29-S 85. 
Lichtenthaler, H.K., Lang, M., and Stober, F. 1991. Laser-induced blue fluorescence and red chlorophyll 
fluorescence signatures of differently pigmented leaves. In: Proc 5th Int. Coll. Physical Measurements and Signatures 
in Remote Sensing, Courchevel, France, 14-18 Jan 1991. ESA SP-319: 727-734. 
McMurtrey III, J.E., Chappelle, E.W. , Daughtry, C.S.T., and Kim, M.S.. 1993. Fluorescence and reflectance of 
crop residue and soil. J. Soil Water Conservation 48:207-213. 
McMurtrey HI, J.E., E.W. Chappelle, E.W., Kim, M.S., Meisinger, J.J., and L.A. Corp. 1994. Distinguishing nitrogen 
fertilization levels in field com (Zea mays L.) with actively induced fluorescence and passive reflectance 
measurements. Remote Sensing Environment 47:36-44. 
Morrison, J.E., Jr., Huang, C., Lightle, D.T., and Daughtry, C.S.T. 1993. Residue cover measurement techniques. 
J. Soil Water Conservation 48:479-483. 
Olioso, A., Methy, M., and Lacaze, B. 1991. A simple model of canopy fluorescence. In: Proc 5th Int Coll. 
Physical Measurements and Signatures in Remote Sensing, Courchevel, France, 14-18 Jan 1991. ESA SP-319: 735- 
738. 
Reinertsen, S.A., Elliott, L.F., Cochpan, V.L., and Campbell, G.S. 1984. Role of available carbon and nitrogen in 
determining the rate of wheat straw decomposition. Soil Biology and Biochemistry 16:459-464. 
Rosema, A. and Verhoef, W. 1991. Modeling of fluorescence light-canopy interaction. In: Proc 5th Int. Coll. 
Physical Measurements and Signatures in Remote Sensing, Courchevel, France, 14-18 Jan 1991. ESA SP-319: 743 
748. 
Stober, F., and Lichtenthaler, H.K. 1993. Studies on the localization and spectral characteristics of the fluorescence 
emission of differently pigmented wheat leaves. Bot Acta 106:365-370. 
Stoner, E.R., Baumgardner, M.F., Weismiller, R.A. , Biehl, L.L., and Robinson, B.F. 1980. Extension of 
laboratory-measured soil spectra to field conditions. Soil Sri. Soc. Am. J. 44:572-574. 
U.S. Department of Agriculture. 1991 Yearbook of Agriculture. Agriculture and the Environment. U.S. Govt. 
Printing Office 0-297-291 QL 2, Washington, D.C.