Corn Production

Extension Newsletter Articles

Corn hail loss chart and things to consider following hail
Elmore, R. 11 Aug 2009. Integrated crop management NEWS. Iowa State University.

Iowa corn 2009 outlook, as of August 1
Taylor, E. and R. Elmore. 3 Aug 2009. Integrated crop management NEWS. Iowa State University.

Corn: Uneven early-season growth can mean uneven tasseling
Elmore, R. and J. Sawyer. 10 Jul 2009. Integrated crop management NEWS. Iowa State University.

Twisted whorls - 2009
Elmore, R. and L. Abendroth. 10 Jul 2009. Integrated crop management NEWS. Iowa State University.

Hail injury on corn
Elmore, R. and L. Abendroth. 19 June 09. Integrated crop management NEWS. Iowa State University.

Early signs of corn stress
Elmore, R. and L. Abendroth. 5 June 09. Integrated crop management NEWS. Iowa State University.

Assessing corn stands for replanting
Elmore, R. and L. Abendroth. 14 May 2009. Integrated crop management NEWS. Iowa State University.

Corn emergence in 2009
Elmore, R. 6 May 2009. Integrated crop management NEWS. Iowa State University.

Corn planting begins
Elmore, R. and L. Abendroth. 22 Apr 2009. Integrated crop management NEWS. Iowa State University.

Lessons from 2008 corn planting date studies
Elmore, R. and L. Abendroth. 8 Apr 2009. Integrated crop management NEWS. Iowa State University.

Signs of spring: robins, vultures, and planting corn
Elmore, R. 2 Mar 2008. Integrated crop management NEWS. Iowa State University.

Is all well that ends well? Iowa corn - 2008
Elmore, R. and L. Abendroth. 9 Dec 2008. Integrated crop management NEWS. Iowa State University.

Corn quality issues in 2008 - moisture and test weight
Hurburgh, C. and R. Elmore. 24 Oct 2008. Integrated crop management NEWS. Iowa State University.

Corn quality issues in 2008 - field molds
Hurburgh, C., A. Robertson, and R. Elmore. 24 Oct 2008. Integrated crop management NEWS. Iowa State University.

Corn quality issues in 2008 - storage management
Hurburgh, C. and R. Elmore. 24 Oct 2008. Integrated crop management NEWS. Iowa State University.

Deciding between grain and forage harvest for late maturing corn
Barnhart, S. and R. Elmore. 6 Oct 2008. Integrated crop management NEWS. Iowa State University.

What is needed to maximize the 2008 corn crop
Elmore, R. 17 Sept 2008. Integrated crop management NEWS. Iowa State University.

Factors needed to maximize corn yield potential in 2008
Elmore, R. and L. Abendroth. 30 Aug 2008. Integrated crop management NEWS. Iowa State University.

Twisted whorls
Elmore, R. and A. Robertson. 13 Jul 2008. Integrated crop management NEWS. Iowa State University.

Estimated corn silk dates and yield potential, Iowa 2008
Elmore, R. 10 Jul 2008. Integrated crop management NEWS. Iowa State University.

Corn following corn in 2008
Al-Kaisi, M., R. Elmore, A. Mallarino, P. Pedersen, A. Robertson, J. Sawyer, and J. Tollefson. 3 Jul 2008. Integrated crop management NEWS. Iowa State University.

Corn yield predictions for replanted and late-planted fields
Elmore, R. 25 Jun 2008. Integrated crop management NEWS. Iowa State University.

Assessing hail injury in corn
Abendroth, L. and R. Elmore. 7 June 2008. Integrated crop management NEWS. Iowa State University.

Flooded corn and saturated soils
Abendroth, L. and R. Elmore. 30 May 2008. Integrated crop management NEWS. Iowa State University.

Corn emergence problems across Iowa
Elmore, R., E. Taylor, and L. Abendroth. 23 May 2008. Integrated crop management NEWS. Iowa State University.

Seeding rates in relation to maximum yield and seed costs
Elmore, R. and L. Abendroth. 5 May 2008. Integrated crop management NEWS. Iowa State University.

Too early to worry about planting corn!
Elmore, R. and L. Abendroth. 16 Apr 2008. Integrated crop management NEWS. Iowa State University.

Predicted corn and soybean acreage in 2008
Abendroth, L., P. Pedersen, and R. Elmore. 8 Apr 2008. Integrated crop management NEWS. Iowa State University.

Try side-by-side trials to check fungicide impact on corn yield
Elmore, R. 10 Mar 2008. Integrated crop management NEWS. Iowa State University.

Yield responsiveness of corn to foliar fungicide application in Iowa
Robertson, A., L. Abendroth, and R. Elmore. 2007. Integrated crop management newsletter. Iowa State University Extension. IC 498(26). p.281-285.

Corn growth and yield formation in light of fungicide applications at tasseling
Elmore, R. and L. Abendroth. 2007. Integrated crop management newsletter. Iowa State University Extension. IC 498 (17). p.199-200.

2007: Tri-modal planting dates for corn
Abendroth, L. and R. Elmore. 2007. Integrated crop management newsletter. Iowa State University Extension. IC 498 (15). p.182-184.

Plant coloring differences based on management and weather
Elmore, R. and L. Abendroth. 2007. Integrated crop management newsletter. Iowa State University Extension. IC 498 (14). p.176-177.

Rootless corn syndrome
Elmore, R. and L. Abendroth. 2007. Integrated crop management newsletter. Iowa State University Extension. IC 498 (11). p.159-160.

Corn survival in flooded or saturated fields
Elmore, R. and Abendroth, L. 2007. Integrated crop management newsletter. Iowa State University Extension. IC 498 (8). p.131-132.

Hybrids adjust to delayed planting dates
Abendroth, L. and R. Elmore. 2007. Integrated crop management newsletter. Iowa State University Extension. IC 498 (8). p.130-131.

Advice to growers of Agrisure ™ rootworm trait (MIR 604) hybrids and their neighbors
Elmore, R., M. Westgate, C.R. Hurburgh and L. Abendroth. 2007. Integrated crop management newsletter. Iowa State University Extension. IC 498 (8). p.127-128.

Corn seeding rates and variable-rate seeding
Abendroth, L. and R. Elmore. 2007. Integrated crop management newsletter. Iowa State University Extension. IC 498 (5). p.110-111.

Crop acreage shift in Iowa and the United States
Abendroth, L. and R. Elmore. 2007. Integrated crop management newsletter. Iowa State University Extension. IC. 498(4), p.97-98.

Corn planting: consider soil temperature and date
Abendroth, L. and R. Elmore. 2007. Integrated crop management newsletter. Iowa State University Extension. IC. 498(4), p.94-95.

300 bushels of corn... when and how?
Elmore, R. and L. Abendroth. 2007. Integrated crop management newsletter. Iowa State University Extension. IC. 498(1), p.34-35.

Allelopathy: a cause for yield penalties in corn following corn?
Elmore, R. and L. Abendroth. 2007. Integrated crop management newsletter. Iowa State University Extension. IC. 498(1), p.16-17.

How to plant all the acres
Abendroth, L. and R. Elmore. 2007. Integrated crop management newsletter. Iowa State University Extension. IC. 498(1), p.6-9.

Introduction: corn following corn
Abendroth, L. and R. Elmore. 2007. Integrated crop management newsletter. Iowa State University Extension. IC. 498(1), p.2.

New extension corn production web site
Abendroth, L. and R. Elmore. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(27), p.264.

A response to phenomenon in 2006: multiple ears per node
Elmore, R. and L. Abendroth. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(27), p.262.

More about early seed discounts
Rouse, J., R. Elmore, and L. Abendroth. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(26), p. 249.

Early seed discounts don't always pay
Abendroth, L., R. Elmore, and J. Rouse. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(25), p.241-242.

Corn now planted earlier than ever before!
Elmore, R. and L. Abendroth. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(22), p. 217-218.

Greensnap in Iowa
Elmore, R., L. Abendroth, and G. Cummins. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(19), p. 199-200.

What's the yield effect of uneven corn heights?
Elmore, R. and L. Abendroth. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(15), p. 169-171.

Mid-April soil temperature swings result in poor corn stands and replanting
Elmore, R. and L. Abendroth. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(13), p. 146-147.

To be determined: ear row numbers and kernels per row in corn
Elmore, R. and L. Abendroth. 2006. Iowa State University Extension. IC. 496(13), p. 151-152.

Check root development in corn fields
Abendroth, L. and R. Elmore. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(12), p. 132.

What's there to lose... with replanted corn?
Abendroth, L. and R. Elmore. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(12), p. 133-134.

Why are corn seedlings turning purple?
Elmore, R. and L. Abendroth. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(10), p. 115.

Did the recent cold weather affect corn germination and seedling growth?
Elmore, R., M. Owen, and L. Abendroth. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(9), p. 103-104.

What is the best seeding rate for corn based on seed prices and yield level?
Elmore, R. and L. Abendroth. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(6), p. 82-83.

Choosing corn hybrids
Elmore, R., L. Abendroth, and J. Rouse. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(4), p. 59-61.

Has the best time to plant corn changed?
Abendroth, L. and R. Elmore. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(4), p. 61-62.

Do polymer coatings help with early corn plantings?
Abendroth, L. and R. Elmore. 2006. Integrated crop management newsletter. Iowa State University Extension. IC. 496(4), p. 63-64.

Root-lodged corn at or before silking
Elmore, R. 2005. Integrated crop management newsletter. Iowa State University Extension. IC. 494(21), p. 161-162.

Crop Watch newsletter articles (University of Nebraska)

Extension Publications

Corn field guide
Mueller, D. (ed.), R. Pope (ed.), L. Abendroth, R. Elmore, B. Hartzler, C. McGrath, G. Munkvold, M.E. Rice, A. Robertson, J. Sawyer, K. Schaefer, J. Tollefson, and G. Tylka. 2009. CSI 0001. Iowa State University.

Corn following corn production
Ciha, A.J., L. Abendroth, and R. Elmore. 2008. Crop Advisor Institute, Iowa State University.

Soybean Inoculation: understanding the complexities behind this phenomenon (part 1 of 2)
Abendroth, L.J. and R.W. Elmore. 2006. NebGuide G1621. University of Nebraska.

Soybean Inoculation: applying the facts to your fields (part 2 of 2)
Abendroth, L.J. and R.W. Elmore. 2006. NebGuide G1622. University of Nebraska.

Irrigating soybean
Kranz, W.L., R.W. Elmore and J.E. Specht. 2005. NebGuide G1367. University of Nebraska.

Using soybean yield data to improve variety selection - part I
Klein, R.N., R.W. Elmore and L.A. Nelson. 2004. NebGuide G1546. University of Nebraska.

Using soybean yield data to improve variety selection - part II
Klein, R.N., R.W. Elmore and L.A. Nelson. 2004. NebGuide G1547. University of Nebraska.

Using corn hybrid yield data to improve selection of rapidly changing hybrids
Klein, R.N., L.A. Nelson, and R.W. Elmore. 2003. NebGuide G1521. University of Nebraska.

Yield Suppressions of glyphosate-resistant (Roundup Ready) soybeans
Elmore, R.W., F.W. Roeth, C.A. Shapiro, L.A. Nelson, A. Martin, S.Z. Knezevic, and R.N. Klein. 2002. NebGuide NF539. University of Nebraska.

Corn grain yield and kernel weight stability after black layer
Elmore, R.W. and F.W. Roeth. 2000. NebGuide G99-1398. University of Nebraska.

Soybean seeding rates
Elmore, R.W. and J.E. Specht. 1999. NebGuide G99-1395. University of Nebraska.

Narrow-row soybeans
Elmore, R.W., R.S. Moomaw, and R. Selley. 1990. NebGuide G90-963. University of Nebraska.

Soybean inoculation - when is it neccesary?
Elmore, R.W. 1984. NebGuide G84-737. University of Nebraska.

Soybean planting date: when and why
Elmore, R.W. and D. Flowerday. 1984. NebGuide G84-687. University of Nebraska.

Maximizing the use of farm strip plots
Havlin, J. and R. Elmore. 1984. NebGuide G84-723. University of Nebraska.

Publications in Refereed Journals

Soybean seed yield and composition response to stand reduction at vegetative and reproductive stages
Conley, S.P., L. Abendroth, R. Elmore, E.P. Christmas, and M. Zarnstorff. 2008. Agron. J. 100: 1666-1669.

Skip-row planting patterns stabilize corn grain yields in the central Great Plains
Lyon, D.J., A.D. Pavlista, G.W. Hergert, R.N. Klein, C.A. Shapiro, S. Knezevic, S.C. Mason, L.A. Nelson, D.D. Baltensperger, R.W. Elmore, M.F. Vigil, A.J. Schlegel, B.L. Olson, and R.M. Aiken. 2009. Online. Crop Management.

Soybean sowing date: the vegetative, reproductive, and agronomic impacts
Bastidas, A.M., T.D. Setiyono, A. Dobermann, K.G. Cassman, R.W. Elmore, G.L. Graef and J.E. Specht. 2008. Crop Sci. 48(2): 727-740.

Greening of agriculture: is it all a greenwash of the globalized economy?
Francis, C.A., R.W. Elmore, J. Ikerd, and M. Duffy. 2007. Journal of Crop Improvement 19(1&2):193-220.

Wind effect on corn leaf azimuth
Elmore, R.W., D.B. Marx, R.G. Klein, and L.J. Abendroth. 2005. Crop Sci. 45:2598-2604.

Corn greensnap from extreme wind is influenced by several factors
Elmore, R.W., G. Hoffmeister, Jr., R.G. Klein, and D.B. Marx. 2003. Online. Crop Management doi:10.1094/CM-2003-1212-01-RS.

Registration of 'Wahoo' wheat
Baenziger, P.S., B. Moreno-Sevilla, R.A. Graybosh, J.M. Krall. M.J. Shipman, R.W. Elmore, R.N. Klein, D.D. Baltensperger, L.A. Nelson, D.V. McVey, J.E. Watkins, and J.H. Hatchett. 2002. Crop Sci. 42:1752-1753.

Registration of 'Millennium' wheat
Baenziger, P.S., B. Moreno-Sevilla, C.J. Peterson, D.R. Shelton, R.W. Elmore, P.T. Nordquist, R.N. Klein, D.D. Baltensperger, L.A. Nelson, D.V. McVey, J.E. Watkins, J.H. Hatchett, and G. Hein. 2001. Crop Sci. 41:1367-1369.

Registration of 'Cougar' wheat
Baenziger, P.S., B. Moreno-Sevilla, C.J. Peterson, D.R. Shelton, R.W. Elmore, P.T. Nordquist, R.N. Klein, D.D. Baltensperger, L.A. Nelson, D.V. McVey, J.E. Watkins, J.H. Hatchett, and R.A. Graybosch. 2001. Crop Sci. 41: 1360-1361.

Glyphosate resistant soybean cultivar yields compared to sister lines
Elmore, R.W., F.W. Roeth, L.A. Nelson, C.A. Shapiro, R.N. Klein, S.Z. Knezevic, and A. Martin. 2001. Agron. J. 93:408-412.

Glyphosate-resistant soybean cultivar response to glyphosate
Elmore, R.W., F.W. Roeth, R.N. Klein, S.Z. Knezevic, A. Martin, L.A. Nelson, and C.A. Shapiro. 2001. Agron. J. 93:404-407.

Registration of 'Culver' wheat
Baenziger, P.S., B. Moreno-Sevilla, C.J. Peterson, D. R. Shelton, R.W. Elmore, R.N. Klein, D.D. Baltensperger, L.A. Nelson, D.V. McVey, J.E. Watkins, and J.H. Hatchett. 2000. Crop Sci. 40:862-863.

Corn kernel weight and grain yield stability during post-maturity drydown
Elmore, R.W. and F.W. Roeth. 1999. J. Prod. Agric. 12:300-305.

Corn yield response to tillage with furrow irrigation
Cahoon, J.E., D.E. Eisenhauer, R.W. Elmore, F.W. Roeth, B. Doupnik, Jr., R.A. Selley, K. Frank, R.B. Ferguson, M. Lorenz, and L.J. Young. 1999. J. Prod. Agric. 12:269-275.

Mid-season stalk breakage in corn: hybrid and environmental factors
Elmore R.W. and R.B. Ferguson. 1999. J. Prod. Agric. 12:293-299.

Soybean cultivar responses to row spacing and seeding rates in rainfed and irrigated environments
Elmore, R.W. 1998. J. Prod. Agric. 11:326-331.

Genetic resistance and Benomyl for control of Phomopsis seed decay on soybean
Elmore, R.W., H.C. Minor, and B. Doupnik, Jr. 1998. Seed Technology. 20(1):23-31.

Narrow row planting systems for furrow irrigated systems
Graterol, Y. E., R.W. Elmore, D.E. Eisenhauer. 1996. J. Prod. Agric. 9:546-553.

Our relationship with the ecosystem and its impact on sustainable agriculture
Elmore, R.W. 1996. J. Prod. Agric. 9:42-45.

Corn recovery from early-season frost
Elmore, R.W. and B. Doupnik, Jr. 1995. J. Prod. Agric. 8:199-203.

Alternate-furrow irrigation for soybean production and improved water management (abstract only)
Graterol, Y.E., D.E. Eisenhauer, and R.W. Elmore. 1993. Agric. Water Mngt. 24:133-145.

Registration of phomopsis seed decay resistant germplasm MO/PSD-0259
Minor, H.C., E.A. Brown, B. Doupnik, Jr., R.W. Elmore, and M.S. Zimmerman. 1993. Crop Sci. 33:1105.

Soybean cultivar response to planting rate and tillage
Elmore, R. W. 1991. Agron. J. 83:829-832.

Soybean cultivar response to tillage systems and planting date
Elmore, R. W. 1990. Agron. J. 82:69-73.

Feeding value of raw or heated grain amaranth germplasm
Pond, W. G., J. W. Lehmann, R.W. Elmore, F. Husby, C. C. Calvert, C. W. Newman, B. Lewis, R. L. Harrold, and J. Froseth. 1990. Animal Feed Science and Tech. 33:221-236.

Specificity: the context of research for sustainability
Walters, D.T., D. A. Mortensen, C.A. Francis, R.W. Elmore, and J.W. King. 1990. J. Soil and Water Cons. 45(1):55-57.

Irrigate soybeans by growth stages in Nebraska
Klocke, N. L., D.E. Eisenhauer, J.E. Specht, R.W. Elmore, G.W. Hergert. 1989. App. Eng. Agric. 5:361-366.

Growth stage scheduling criteria for sprinkler-irrigated soybeans (abstract only)
Specht, J.E., R.W. Elmore, D.E. Eisenhauer, and N.W. Klocke. 1989. Irrigation Sci. 10:99-111.

Soybean yield and yield component response to limited capacity sprinkler irrigation systems
Elmore, R.W., D.E. Eisenhauer, J.E. Specht, and J.H. Williams. 1988. J. Prod. Agric. 1:196-201.

On-farm experiment designs and implications for locating research sites
Rzewnicki, P.E., R. Thompson, G.W. Lesoing, R.W. Elmore, C.A. Francis, A.M. Parkhurst, and R.W. Moomaw. 1988. J. Alt. Agric. 3:168-173.

Soybean cultivar response to tillage systems
Elmore, R.W. 1987. Agron. J. 79:114-119.

Determinate and indeterminate soybeans in low-yield and high-yield environments
Elmore, R.W., M.D. MacNeil, and R.F. Mumm. 1987. App. Agric. Research 2:74-80.

Yield and nitrogen yield of sorghum intercropped with nodulating and nonnodulating soybeans
Elmore, R.W. and J.A. Jackobs. 1986. Agron. J. 78:780-782.

Registration of 'Fremont' soybeans
Williams, J.H., J.E. Specht, A.F. Dreier, R.W. Elmore, and R.S. Moomaw. 1986. Crop Sci. 26:648.

Registration of 'Logan' soybeans
Williams, J.H., J.E. Specht, A.F. Dreier, R.W. Elmore, and R.S. Moomaw. 1986. Crop Sci. 26:386-387.

Yield and yield components of sorghum and soybeans of varying plant heights when intercropped
Elmore, R.W. and J.A. Jackobs. 1984. Agron. J. 76:561-564.

Registration of Platte soybean
Williams, J.H., J.E. Specht, A.F. Dreier, R.S. Moomaw, and R.W. Elmore. 1984. Crop Sci. 24:384.