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JOHNSON, J.M-F., GESCH, R.W., BARBOUR, N.W. CONTRASTING TEMPERATURE REGIMES ALTER COMPOSITION AND PHENOLOGY OF SWITCHGRASS AND WHEAT. CD-ROM. MADISON, WI: ASA-CSSA-SSSA. 2003.
JOHNSON, J.M., BARBOUR, N.W. BIOCHEMICAL COMPOSITION AND DECOMPOSITION AMONG SEVERAL C3 AND C4 SPECIES. AVAILABLE FROM: HTTP://ABSTRACTS.ASPB.ORG/PB2002/PUBLIC/P34/0112.HTML AMERICAN SOCIETY OF PLANT BIOLOGISTS ABSTRACTS [2002].
JOHNSON, J.M., GESCH, R.W., BARBOUR, N.W. PHENOLOGY AND BIOCHEMICAL COMPOSITION OF SWITCHGRASS (C4) AND WHEAT (C3)GROWN AT CONTRASTING TEMPERATURES. AMERICAN SOCIETY OF PLANT BIOLOGISTS. 2003. ABSTRACT P. 45.
LIEBIG, M.A., CARPENTER-BOGGS, L., JOHNSON, J.M., WRIGHT, S.E., BARBOUR, N.W. SOIL BIOLOGICAL CHARACTERISTICS OF CONTRASTING CROPPING SYSTEMS IN THE GREAT PLAINS: SUMMARY OF PRELIMINARY FINDINGS. In: Proceedings from Dynamic Cropping Systems: Principles, Processes, and Challenges. Hanson, J.D. and J.M. Krupinsky (eds.). August 5-7, 2003, Bismarck, ND. 2003. p. 210-214.
BARBOUR, N.W., JOHNSON, J.M. DECOMPOSING PLANTS -- DOES COMPOSITION AND PLANT PART AFFECT DECOMPOSITION RATE? CD-ROM. ST. PAUL, MN: MINNESOTA ACADEMY OF SCIENCE. 2003.
RUTHER, N.R., BARBOUR, N.W., JOHNSON, J.M. DECOMPOSITION AND COMPOSITION ANALYSIS OF SIBLING BT CORN AND NON BT CORN. CD-ROM. ST. PAUL, MN: MINNESOTA ACADEMY OF SCIENCE. 2003.
JARADAT, A.A., JOHNSON, J.M., VANKEMPEN, S.J., BARBOUR, N.W. ANNUAL MEDICS (MEDICAGO SPP.) CAN HELP DEVELOP SUSTAINABLE AGRICULTURE IN THE UPPER MIDWEST. CD-ROM. ST. PAUL, MN: MINNESOTA ACADEMY OF SCIENCE. 2003.
GESCH, R.W., FORCELLA, F., BARBOUR, N.W., VOORHEES, W.B., PHILLIPS, B.S. GROWTH AND YIELD RESPONSE OF CUPHEA TO ROW SPACING. FIELD CROPS RESEARCH. 2003. v. 81. p. 193-199.
JOHNSON, J.M., BARBOUR, N.W. RESIDUE COMPOSITION AND DECOMPOSITION OF SHOOT AND ROOTS AMONG C3 AND C4 SPECIES. CD-ROM. MADISON, WI: AGRONOMY ABSTRACTS. 2002.