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Tony J. Vyn
Tony J. Vyn, Professor
Department of Agronomy, Purdue University,
915 West State St., West Lafayette, IN 47907-2054
Telephone: (765) 496-3757
FAX: (765) 496-2926
E-Mail: tvyn@purdue.edu
Education
B.Sc. (Agr.) - University of Guelph (1976)
M.Sc. - University of Guelph (1978)
Ph.D. - University of Guelph (1987)
Date joined Purdue's staff: August 1998
Effort distribution: 60% research, 40% extension
Extension/Technical Publications on Potassium
Vyn, T.J., B. Ball, D. Maier, and S.M. Brouder. 2002. High Oil Corn Yield and Quality Responses to Fertilizer K versus Exchangeable K on Variable Soils. Better Crops 86 (4): 16-21,
Xinhua Yin and Tony J. Vyn. 2002. Residual impacts of previous corn rows on Potassium Nutrition of No-till Narrow Row Soybeans. Better Crops 86 (3): 16-1. 9
Refereed Journal Articles on Potassium
X. Yin and T.J. Vyn. 2003. Residual effects of potassium placement in conservation-till corn on subsequent no-till soybean. Soil and Tillage Research 74: pages (in press).
Yin, X., and T. J. Vyn. 2003. Previous corn row effects on potassium nutrition and yield of subsequent no-till soybean. J. Plant Nutrition 26 (7):1383-1402.
Yin, X.H., and T.J. Vyn. 2003. Potassium placement effects on yield and seed composition of no-till soybean seeded in alternate row widths. Agron. J. 95:126-132.
Vyn, T.J., X. Yin, T.W. Brunlsema, C.C Jackson, I. Rajcan, and S.M. Brouder. 2002. Potassium fertilization effects on isoflavone concentrations in soybean [Glycine max (L.) Merr.]. J. Agric. Food Chem. 50:3501-3506 .
Yin, X., and T.J. Vyn. 2002. Residual effects of potassium placement and tillage systems for corn on subsequent no-till soybean. Agron. J. 94:112-1119.
Yin, X., and T. J. Vyn. 2002. Soybean responses to potassium placement and tillage alternatives following long-term no-till. Agron. J. 94:1367-74.
Vyn, T.J., A.M. Galic and K.J. Janovicek. 2002. Corn response to potassium placement in conservation tillage. Soil Tillage Res. 67(2):159-169.
Vyn, T.J., and K.J. Janovicek. 2001. Potassium placement and tillage system effects on corn response following long-term no-till. Agron. J. 93:487-495.
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