Dr. Tony J. Vyn
Selected Publications
2017
- Mueller, S.M., and T.J. Vyn. 2018. Can late-split nitrogen application increase ear nitrogen accumulation rate during the critical period in maize? Crop Science 58:1-12. doi:10.2135/cropsci2017.0200118 Open Accces. Available as First Look manuscript on April 27, 2018 at View the Publication
- Chen, Keru, and Tony J. Vyn*. 2017. Post-silking factor consequences for N efficiency changes over 38 years of commercial maize hybrids. Frontiers in Plant Science 8:1737 1-18 View the Publication
- Li, G., B. Zhao, S., Dong, J. Zhang, P. Liu and T.J. Vyn. 2017. Impact of controlled release on urea on maize yield and nitrogen use efficiency under different water conditions. PLoS ONE 12 (7): doi.org/10.1371/journal.pone.0181774 View the Publication
- Mueller, S.M., J. Camberato, C. Messina, J. Shanahan, H. Zhang and T.J. Vyn*. 2017. Late-split N applications increased maize plant N recovery but not yield under moderate to high N rates. Agron. J. 109:2689-2699. doi# 10.2134/agronj2017.05.0282 View the Publication
- de Oliveira Silva, A., J.J. Camberato, T. Coram, T. Filley, and T.J. Vyn*. 2017. Applicability of a "multi-stage pulse labeling" 15N approach to phenotype N dynamics in maize plant components during the growing season. Front. Plant Sci. 8: 1-17. doi: 10.3389/fpls.2017.01360 View the Publication
- Kovacs, P.*, and T.J. Vyn*. 2017. Relationships between ear-leaf nutrient concentrations and silking and corn biomass and grain yields at maturity. Agron. J. 109: 2898-2906. doi: 10.2134/agronj2017.02.0119 View the Publication
- Omonode.R.A., A.D. Halvorson, B. Gagnon, and T.J. Vyn*. 2017. Achieving lower nitrogen balance and higher nitrogen recovery efficiency reduces nitrous oxide emissions in North America's maize cropping systems. Frontiers in Plant Science 8:1080. doi: 10.3389/fpls.2017.01080 View the Publication
- Chen.K.*, J.J. Camberato, and T.J. Vyn. 2017*. Maize grain yield and kernel component relationships to morphophysiological hybrids separated by four decades. Crop Science 57 (3): 1-17._DOI: 10.3235/cropsci2016.06.0540 View the Publication
2016
- Chen, K.* J.J. Camberato, M.R. Tuinstra, S.V. Kumudini, M. Tollenaar, and T.J. Vyn*. 2016. Genetic improvement in density and nitrogen stress tolerance traits over 38 years of commercial maize hybrid release. Field Crops Res. 196 438-451. doi: 10.1016/j.fer2016 07.025. View the Publication
- Mueller, S.M.* and T.J. Vyn* .2016. Maize plant resilience to N
stress and post-silking N capacity changes over time: A review. Frontiers
in Plant Science 7:53 1-14 View the Publication
2015
- Chen, K., Kumudini, S.V., Tollenar, M., and Vyn, T.J*, 2015. Plant biomass and nitrogen partitioning changes between silking and maturity in newer versus older maize hybrids. Field Crops Research. 183:315-328. View the Publication
- Kovacs, P.*, G.E. Van Scoyoc, T.A. Doerge, J.J. Camberato, and T.J. Vyn*. 2015. Anhydrous Ammonia Timing and Rate Effects on Maize N Use Efficiencies. Agronomy Journal 107: 1205-1214. doi:10.2134/agronj14.0350 View the Publication View the Publication
2014- Ciampitti,
I. A.* & Vyn, T. J.* (2014). Understanding global and historical
nutrient use efficiencies for closing maize yield gaps. Agronomy Journal,
106: 634-644. View the Publication
- Kovács,
P.*, Doerge, T. A., Van Scoyoc, G. E., Camberato, J. J., & Vyn, T. J.*
(2014). Pre-plant anhydrous ammonia placement consequences on no-till
versus conventional maize growth and nitrogen responses. Agronomy Journal,
106: 634-644. View the Publication
- Kovács P.* & Vyn, T.J.* (2014). Full-season retrospectives on causes of plant-to-plant variability in maize grain yield response to nitrogen and tillage. Agronomy Journal, 106(5): 1746-1757. View the Publication
- Kumudini,
S.*, Andrade, F. H., Edmeades, G. O., Nielsen, R. L., Thomison, P. R.,
Vyn, T. J. and other authors, Tollenaar, M.* (2014). Predicting maize
phenology: Intercomparison of functions for developmental response to
temperature. Agronomy Journal, 106: 2087-2097. View the Publication
- Ciampitti,
I. A.*, & Vyn, T. J.* (2014). Nutrient sufficiency concepts for modern
corn hybrids: Impacts of management practices and yield levels. Crop
Management, 13(1), 1-7. View the Publication
- Burzaco,
J. P. *, I. A. Ciampitti, and T. J. Vyn*. 2014. Nitrapyrin impacts on
maize yield and nitrogen use efficiency with spring-applied nitrogen:
Field studies vs. meta-analysis comparison. Agronomy Journal 106:753-760.
doi:10.2134/agronj2013.0043. View the Publication
- Kovacs*,
P., G.E. Van Scoyoc, T. A. Doerge, J.J. Camberato, and T.J. Vyn*. 2014.
Pre-plant anhydrous ammonia placement consequences on no-till versus
conventional maize growth and nitrogen responses. Agronomy Journal
106:634-644. (First published online as a “First Look” manuscript in
November, 2013). doi:10.2134/agronj2013.0356 View the Publication
2013
- Boyer, J.S., P. B. Byrne, K.G. Cassman, M. Cooper, D. Delmer,
T. Greene, F. Gruis, J. Habben, N. Hausmann, N. Kenny, R. Lafitte, S.
Paszkiewicz, D. Porter, A. Schlegel, J. Schussler, T. Setter, J. Shanahan,
R.E. Sharp, T.J. Vyn, D. Warner, and J. Gaffney*. 2013. The U.S. drought
of 212 in perspective: A call to action. Global Food Security 2:139-143. View the Publication
- Burzaco, J. P., D.R. Smith, and T.J. Vyn*. 2013. Nitrous
oxide emissions in Midwest US maize production vary widely with
band-injected N fertilizer rates, timing and nitrapyrin presence.
Environmental Research Letters 8 (3): 1-11.
doi:10.1088/1748-9326/8/3/035031 View the Publication
- Ciampitti*, I. A., and T. J. Vyn*. 2013. Grain nitrogen
sources over time in maize: A review. Crop Science 53(2): 366-377.
doi:10.2135/cropsci2012.07.0439 View the Publication
- Ciamptti*,I. A., J. J. Camberato, S. T.
Murrell, and T. J. Vyn*. 2013. Maize nutrient accumulation and
partitioning in response to plant density and nitrogen rate: 1.
Macronutrients. Agronomy Journal 105(3): 783-795. doi:10.2134/agronj2012.0467 View the Publication
- Ciampitti*, I. A., and T. J. Vyn*. 2013. Maize nutrient accumulation
and partitioning in response to plant density and nitrogen rate: II
Calcium, magnesium, and micronutrients. Agronomy Journal 105(6): 1645-1657.
doi:10.2134/agronj2013.0126 View the Publication
- Ciampitti*, I. A., S. T. Murrell, J. J. Camberato, M.
Tuinstra, Y. Xia, P. Friedemann, and T. J. Vyn*. 2013. Physiological
dynamics of maize nitrogen uptake and partitioning in response to plant
density and nitrogen stress factors: I. Vegetative phase. Crop Science,
53(6): 2588-2602. doi:10.2135/cropsci2013.01.0040 View the Publication
- Ciampitti*, I. A., S. T. Murrell, J. J. Camberato, M.
Tuinstra, Y. Xia, P. Friedemann, and T. J. Vyn*. 2013. Physiological
dynamics of maize nitrogen uptake and partitioning in response to plant
density and nitrogen stress factors: II. Reproductive phase. Crop Science,
53(6): 2588-2602. doi:10.2135/cropsci2013.01.0041 View the Publication
- Omonode, R.A., and T.J. Vyn*. 2013. Nitrification kinetics and nitrous oxide emissions when nitrapyrin is coapplied with urea-ammonium nitrate. Agron. J. 105:1475-1486. doi:10.2134/agronj2013.0184
View the Publication
- Roth, J. A., I. A. Ciampitti, and T. J. Vyn*. 2013.
Physiological evaluations of recent drought-tolerant maize hybrids at
varying stress levels. Agronomy Journal, 105, 1129-1141. doi:10.2134/agronj2013.0066 View the Publication
- Ciampitti,
I.A., T.S. Murrell, J. J. Camberato, and T. Vyn*. 2013. Maize nutrient
accumulation and partitioning in response to plant density and nitrogen
rate: 1. Macronutrients. Agron. J. 105:783-795 doi:
10.2134/agronj2012.0467 View the Publication
- Ciampitti,
Ignacio A., and Tony J. Vyn. 2013. Grain nitrogen sources over time in maize: a
review. Crop Science 53:366-377.View the Publication
2012- Seo, J.*, T.J. Vyn, A. Gal, and D.R. Smith. 2012. Soil greenhouse gas emissions from three decades long-term experimental field of corn-soybean rotation and tillage treatments. Korean J. Crop Sci. 57 (1): 89-97. View the Publication
- Ciampitti, I. A.*, H. Hao, P. Friedemann, and T.J. Vyn*.
2012. Potential physiological frameworks for mid-season field phenotyping
of final plant N uptake, N use efficiency and grain yield in maize. Crop
Science 52:2728-2742.doi:10.2135/cropsci2012.05.0305 View the Publication
- Robles,
M., I.A. Ciampitti, and T.J. Vyn*. 2012. Responses of maize hybrids to twin-row
spatial arrangement at multiple plant densities. Agron. J. 104:1747-1756.
doi:10.2134/agronj2012.0231 View the Publication
2011
- Ciampitti, Ignacio A.* and Tony J. Vyn*. 2011. A comprehensive study of plant density consequences on nitrogen uptake dynamics of maize plants from vegetative to reproductive stages. Field Crops Res. 121: 2-8. View the Publication
- Griffin, T.W.; Dobbins, C.L.;
Florax, R.J.G.M.; Lowenberg-DeBoer, J.M.; Vyn, T.J. 2010. Spatial
Analysis of Precision Agriculture Data: Role for Extension. J.
National Assoc. Agric. Agents (on-line).View the Publication
- Boomsma, C.R., J.B. Santini,
T.D. West, J.C. Brewer, L.M. McIntyre, and T. J. Vyn., 2010. Maize grain
yield responses to plant height variability resulting from crop rotation
and tillage system in a long-term experiment. Soil Tillage
Res. 106:227-240. View the Publication
2010
- Omonode, R.A., A. Gál, D.R.
Smith and T.J. Vyn*. 2010. Nitrous Oxide Fluxes in Corn
Following Three Decades of Tillage and Rotation Treatments. Soil Sci. Soc.
Am. J. 75. View the Publication
- Spatial
Analysis of Precision Agriculture Data: Role for Extension. J.
National Assoc. Agric. Agents (on-line).View the Publication
- Boomsma,C.R., J.B. Santini,
T.D. West, J.C. Brewer, L.M. McIntyre, and T. J. Vyn., 2010. Maize grain
yield responses to plant height variability resulting from crop rotation
and tillage system in a long-term experiment. Soil Tillage
Res. 106:227-240. View the Publication
2009
- Gonzalo,
M., J.B. Holland, T.J. Vyn and L.M. McIntyre. 2009. Direct mapping of
density response in a population of B73
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Mo17 recombinant inbred lines of
maize (Zea Mays L.)Heredity 140. View the Publication
- Boomsma, C.R., J.B.
Santini, M. Tollenaar, and T.J. Vyn. 2009. Maize morpho-physiological
responses to intense crowding and low nitrogen availability: An analysis
and review. Agron. J. 101:
1426-1452 View the Publication
- Westphal, A., L.J. Xing, R.
Pillsbury and T.J. Vyn. 2009. Effect of tillage intensity on population
densities of Heterodera glycinesin intensive
soybean production systems. Field Crops Research. View the Publication
2008
- Griffin, T.W., C.L. Dobbins,
T.J. Vyn, R.J.G.M. Florax, J.M. Lowenberg-DeBoer. 2008. Spatial analysis
of yield monitor data: case studies of on-farm trials and farm management
decision making. Precision Agriculture Doi. View the Publication
- Boomsma, C.R., and T.J. Vyn.
2008. Maize drought tolerance: Potential improvements through arbuscular
mycorrhizal symbiosis? Field
Crops Research. View the Publication
- Creech, J. E., A. Westphal, V.
R. Ferris, J. Faghihi, T. J. Vyn, J. B. Santini, and W. G. Johnson*.
2008. Influence of winter annual weed management and crop rotation on
soybean cyst nematode (Heterodera glycines) and winter annual
weeds. Weed Sci. 56:103-111. (ARP
manuscript no. 2007-18154). View the Publication
2007
- M. Gonzalo,
T. J. Vyn, J. B. Holland &
L. M. McIntyre. 2007. Mapping reciprocal effects and
interactions with plant density stress in Zea mays L. Heredity
2007 99: 14-30;advance online publication,
May 2, 2007; 10.1038/sj.hdy.6800955. View the Publication
- Gàl, A., T.J. Vyn, E. Michéli,
E.J. Kladivko, and W.W. McFee. 2007. Soil carbon and nitrogen accumulation
with long-term no-till versus moldboard plowing overestimated with
tilled-zone sampling depths. Soil Tillage Research. 96:42-51. View the Publication
- Omonode, R.A., T.J. Vyn, D.R.
Smith, P. Hegymegi, and A. Gal. 2007. Soil carbon dioxide and methane
fluxes from long-term tillage systems in continuous corn and corn-soybean
rotations. Soil and Tillage
Research. 95:182-195. View the Publication
2006
- Janovicek, K. J., W. Deen, T.
J. Vyn. 2006. Soybean response to zone tillage, twin-row planting, and row
spacing. Agron. J. 98:800:807.
View the Publication
- Omonode, Rex. A., and Tony J.
Vyn. 2006. Vertical Distribution of Soil Organic Carbon and Nitrogen Under
Warm Season Native Grasses Relative to Croplands. Agriculture, Ecosystems &
Environment Vol. 17 (issues 2-3):159-170. View the Publication
- Gonzalo, M., J. Holland, T. Vyn
and L. McIntyre. 2006. Mapping density response in maize: a direct
approach for testing genotype and treatment interactions. Genetics 173:331-348. View the Publication
- Omonode, R.A., A. Gal, D.E.
Stott, T.S. Abney and T.J. Vyn. 2006. Short-term versus continuous chisel
and no-till effects on soil carbon and nitrogen. Soil Sci. Soc. Am. J. 70:419-425. View the Publication
- Omonode, R.A., and T.J. Vyn.
2006. Spatial dependence and relationships of electrical conductivity to
soil organic matter, phosphorus and potassium, Soil Science 171(3):223-238. View the Publication
2005
- Yin, Xinhua and T.J. Vyn. 2005.
Relationships of isoflavone, oil, and protein in seed with yield of
soybean. Agron. J.
97:1314-1321. View the Publication
2004
- Yin, Xinhua and T.J. Vyn. 2004.
Critical leaf potassium concentrations for yield and seed quality of
conservation-till soybean. Soil
Sci. Soc. Am. J. 68:1626-1634. View the Publication
- X. Yin and T.J. Vyn. 2004.
Residual effects of potassium placement in conservation-till corn on
subsequent no-till soybean. Soil
and Tillage Research Journal 75:151-159. View the Publication
2003
- 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. View the Publication
- Drury, C.F., C.S. Tan, W.D. Reynolds, T.W. Welacky, S.E. Weaver, A.S. Hammill, and T.J. Vyn, 2003. Impacts of zone tillage and red clover on corn performance and soil physical qualtiy. Agron. J. 67:867-877. View the Publication
- 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. View the Publication
2002
- Vyn, T.J.*, and D.C. Hooker. 2002. Assessment of multiple- and single-factor stress impacts on corn. Field Crops Res. 75:123-137.
- Vyn, TJ., 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. View the Publication
- 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.
- Garcia-Garca, J.A., S. Neumann,
T.J. Vyn and G.J. Boland. 2002. Influence of crop rotation and
tillage on production of apothecia by Sclerotinia sclerotiorum. Can. J. Plant Pathology, Volume 24(2):
137-143. View the Publication
- 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., D.M. Galic and K.J.
Janovicek. 2002. Corn response to potassium placement in conservation
tillage. Soil Tillage Res.
67(2):159-169.
2001
- 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. View the Publication
2000
- Vyn, T.J., J.G. Faber, K.J.
Janovicek, and E.G. Beauchamp. 2000. Cover crop management effects on
nitrogen availability to corn following wheat. Agron. J. 92:915-924.
- Yiridoe, E.K., T.J. Vyn, A.
Weersink, D.C. Hooker, and C. Swanton. 2000. Farm-level profitability
analysis of alternative tillage systems on clay soils. Can. J. Plant Sci. 80 (1): 65-73.
- Yiridoe, E.K., A. Weersink,
D.C. Hooker, T.J. Vyn, and C. Swanton. 2000. Income risk
analysis of alternative corn and soybean production on clay soils. Can. J. Agric. Econ. 48(2):161-174.
1999
- Swanton, C.J., T.J. Vyn, K.
Chandler, and A. Shresthra. 1999. Alternative weed control strategies for
no-till soybean (Glycine max) grown on clay soils. Weed Technology
12:660-669.
- Vyn, T.J., K.J. Janovicek, M.H.
Miller, and E.G. Beauchamp. 1999. Soil nitrate accumulation and corn
response to preceding small grain N fertilization and cover crops. Agron. J. 91:17-24. View the Publication
- Wanniarachi, S.D., R.P.
Voroney, T.J. Vyn, R.P. Beyaert, and A.F. MacKenzie. 1999. Tillage effects
on the dynamics of soil total and corn-derived organic matter in two
southern Ontario soils. Can.
J. Soil Sci. 79:473-480. View the Publication
1998
- Vyn, T.J., and M. Tollenaar.
1998. Physical and chemical parameters of corn grain associated with three
decades of maize yield improvement. Field Crop Research 59:135-140. View the Publication
- Vyn, T.J., G. Opoku and C.J.
Swanton. 1998. Residue management and minimum tillage systems for soybeans
following wheat. Agron. J.
90:131-138. View the Publication
- Ding, W., D.J. Hume, T.J. Vyn
and E.G. Beauchamp. 1998. N credit of soybean to a following corn crop in
central Ontario. Can. J.
Plant Sci. 78:29-33. View the Publication
- Dapaah, H.K., and T.J. Vyn.
1998. Nitrogen fertilization and cover crop effects on soil structural
stability and corn performance. Commun. Soil Sci. & Plant Anal. 29:
2557-2569.
1997
- Opoku, G., and T.J. Vyn. 1997.
Wheat residue management options for no-till corn. Can. J. Plant Sci. 77:207-213. View the Publication
- Opoku, G., T.J. Vyn and C.J.
Swanton. 1997. Modified no-till systems for corn following wheat on clay
soils. Agron. J. 89:549-556.
- Hooker, D.C.*, T.J. Vyn and C.J. Swanton. 1997. Effectiveness of soil-applied herbicides with mechanical weed control for conservation tillage systems in soybean. Agron. J. 89:579-587.
- Janovicek, K.J., T.J. Vyn and
R.P. Voroney. 1997. No-till corn response to crop rotation and in-row
residue placement. Agron. J. 89:588-596
- Janovicek, K.J., T.J. Vyn, R.P.
Voroney and O.B. Allen. 1997. Early corn seedling growth response to
acetic, propionic and butyric acids. Can. J. Plant Sci. 77: 333-337.
- Janovicek, K.J., T.J. Vyn, R.P.
Voroney and O.B. Allen. 1997. Early corn seedling growth response to
phenolic acids. Can. J. Plant Sci. 77:391-393.
- Opoku, G., T.J. Vyn and R.P.
Voroney. 1997. Wheat straw placement effects on total phenolic compounds
in soil and corn seedling growth. Can. J. Plant Sci. 77:301-305. View the Publication
1994
- Aflakpui, G.K.S., T.J. Vyn,
G.W. Anderson, D.R. Clements, M.R. Hall and C.J. Swanton. 1994. Crop
management systems for corn following established alfalfa (Medicago
sativa L.). Can. J. Plant Sci. 74:255-259.
- Stewart, G.A., and T.J. Vyn.
1994. Influence of high axle loads and tillage systems on soil properties
and grain corn yield. Soil Tillage Research 129:229-235.
1993
- Vyn, T.J., and B.A. Raimbault.
1993. Long-term impact of five tillage systems on corn response and soil
structure. Agron. J. 85:1074-1079.
- Tollenaar, M., M. Mihajlovic
and T.J. Vyn. 1993. Corn growth following cover crops: Influence of cereal
cultivar, cereal removal, and nitrogen rate. Agron. J. 85:251-255.
- Aflakpui, G.K.S., T.J. Vyn,
M.R. Hall, G.W. Anderson and C.J. Swanton. 1993. Effect of tillage on
nitrogen response in corn (Zea mays L.) after established
alfalfa (Medicago sativa L.). Can. J. Plant Sci. 73:73-81.
Refereed Conference Proceedings
- Christopher R. Boomsma and Tony J.
Vyn, "Per-plant eco-physiological responses of maize to varied nitrogen
availability at low and high plant densities" (July 7, 2009). The Proceedings of the International Plant
Nutrition Colloquium XVI. Paper 1233. View the Proceedings
- in Proceedings,
4th International Crop Science Congress, 26 Sept. – 1 Oct., 2004, Brisbane,
Australia.
Non-refereed Conference Proceedings
- Kovacs, P., and T.J. Vyn.
2011. “Corn plant uniformity following shallow NH3 placement in
precision-guided, pre-plant nitrogen applications”. Proceedings, 41st
North Central Extension-Industry Soil Fertility Conference, Des Moines, Iowa.
November 16-17, 2011. Pages 181-187. View the Proccedings
- Boomsma, C.R., Santini, J.B., Vyn,
T.J. 2009. Maize plant competition in high plant density, high yield
environments. 2009 American Seed
Trade Association (ASTA) 64th Annual Corn & Sorghum Seed Research
Conference and 39th Annual Soybean Seed Research Conference; Chicago,
Illinois.
- Tony J. Vyn and Terry D. West, 2009.
Efficient Fluid Fertilizer Management for Corn Producers with Automatic
Guidance Systems: Three Year Summary, Proceedings CD, 2009 Fluid Form sponsored by the Fluid Fertilizer.
- Vyn, T. J., 2008. Tillage and
fertility aspects of root zones optimization for corn. Proceedings, Illinois Crop Protection
Technology Conference, January, 2008. Pages 70-74. View the Proceedings
- Boomsma, C.R., M. Canepa, and T.J.
Vyn. 2007. Factors affecting the relative benefit of deep-banding versus
broadcast application of P and K for corn and soybean. Proceedings, North Central Extension-Industry
Soil Fertility Conference 2007 in Des Moines, Iowa. Vol. 23, pages
55-63. View the Proceedings
- Vyn, Tony J., R.A. Omonode, D.R.
Smith, A. Gal, and P. Hegymegi. 2006. Soil sequestration and gas emissions of
carbon after 3 decades of tillage systems for corn and soybean production in
Indiana. Proceedings CD for the 17th International
Soil Tillage Research Organization Conference, Kiel Germany, August 28
to Sept. 3, 2006. View the Proceedings
- Ball, B., and T.J. Vyn. 2003.
Spatial response of maize to conservation tillage and potassium placement of
variable soils, in CD of Proceedings, 16th International Soil Tillage Research
Conference, Brisbane, Australia, July 10-14, 2003. View the Proceedings
- Vyn, T.J., T.D. West, and G.C.
Steinhardt. 2000. Corn and soybean response to tillage and rotation
systems on a dark prairie soil: 25 year review. No. 196 (p. 1-10) in
Proceedings, 15th Conf. of Int'l. Soil Tillage Research Org., July 2-6, 2000.
Fort Worth, Texas. View the Proceedings
- Gehring, D.A., G.C. Steinhardt, E.J.
Kladivko, T.D. West, T.J. Vyn, and G.L. Willoughby. 2000. Soil
physical property response to tillage and rotation on a dark prairie soil. No.
178 (p. 1-10) in Proceedings, 15th Conf. of Int'l. Soil Tillage Research Org.,
July 2-6, 2000. Fort Worth, Texas.
- Hooker, D.C., and T.J.
Vyn. 2000. Critical soil factors affecting early corn growth and yield in
conservation tillage: A multi-variable approach. No. 82(p. 1-10) in
Proceedings, 15th Conf. of Int'l. Soil Tillage Research Org., July 2-6, 2000.
Fort Worth, Texas.
- Arends, M.J., T.J. Vyn, and T.D.
West. 2000. Feasibility of fall zone tillage for maize production. No. 9 (p.
1-9) in Proceedings, 15th Conf. of Int'l. Soil Tillage Research Org., July 2-6,
2000. Fort Worth, Texas.
- Vyn, T.J. 1999. Potassium
placement in conservation tillage: Cropping system considerations. Pages 82-87
in Proceedings of 29th North Central Extension-Industry Soil Fertility
Conference, St. Louis, Missouri, Nov. 17-18.
- Vyn, T.J. and G.A. Stewart. 1994.
Cover crop nitrogen availability to corn with conservation tillage. Pages
813-818 in Proceedings of 13th International
Soil Tillage Research Organization Conference, Aalborg, Denmark, July 24-29
- Hooker, D.C. and T.J. Vyn. 1994.
Alternative weed control strategies with conservation tillage systems in
soybeans. Pages 977-982 in Proceedings of 13th Conference
of Int'l Soil Tillage Research Organization (v. II), Aalborg, Denmark, July
24-29.
- Stewart, G.A., T.J. Vyn and K.J.
Janovicek. 1994. Assessment of soil changes with no-till planter options in
corn production. Pages 1289-1294 in Proceedings of 13thInternational
Soil Tillage Research Organization Conference (v. II), Aalborg, Denmark, July
24-29.
Other
Research Publications- Yin, X., and T.J. Vyn. 2005.
Critical leaf potassium is higher in no-till soybean. Better Crops 89 (2):1-5.
- Yin, X., and T.J. Vyn. 2005. High
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