Purdue University Department of Agronomy

Corny News Network

Archives of the Corny News Network

One of the great characteristics of the Web is its ability to serve as a repository of historical information that is accessible at the click of a mouse. As the saying goes, history does repeat itself when it comes to agronomic issues that face corn and soybean farmers every year. These Corny News Network (CNN) Archives serve as a repository for the agronomic articles published by yours truly at the Chat 'n Chew Café since 1995, with some additional others written by some of my colleagues here at Purdue.

The articles are organized by topic area to ease your search for the information you are seeking. I have also only included the most recent version of articles that have been frequently rehashed over the years in response to the occurrence of the same ol' agronomic challenges. Jump directly to the topic of your choice or simply scroll down and browse.

General information about corn
Growth and development
Growth staging, leaf staging, phenology
Germination, emergence, root development
Arrested ear development & other ear abnormalities
Pollination, silking, flowering
Grain filling period (blister through kernel black layer)
Crop problem symptomology & diagnostics
Early season (stand establishment)
Mid-season
Late season
Disease issues
Stress Due to Weather Extremes
Drought and/or heat stress
Flooding, ponding, saturated soils
Frost & low temperature damage
Hail damage
Harvest, grain drydown, yield estimation
Herbicides & herbicide injury
Hybrid selection, biotechnology, GMOs
On-farm research
Planting date & replanting issues
Plant populations, seeding rates, seeding depth
Precision ag., site specific crop management, GIS
Soil fertility, plant nutrient management
Stand uniformity, planter maintenance

Note: The Chat 'n Chew Café offers articles from many other folks besides myself, but I have yet to index those articles. To locate these other articles, you can browse through my monthly archives. Some of the sources for those articles offer their own search indexes, including Iowa State Univ., Ohio State Univ., Univ. of Illinois, and Univ.

R.L. (Bob) Nielsen
Agronomy Dept., Purdue Univ.
West Lafayette, IN 47907-2054
Email address: rnielsen at purdue.edu

Reasonably New Articles

  1. Soil Sampling to Assess Current Soil N Availability (2017)
  2. Prevalent Purple Plants Perennially Puzzle Producers (2017)
  3. Historical Corn Grain Yields for the U.S. (2017)
  4. Update on "Safe" Hybrid Maturities for Late Plantings (2017)
  5. Effects of Flooding or Ponding on Corn Prior to Tasseling (2017)
  6. Heat Unit Concepts Related to Corn Development (2017)
  7. Corn Replant Considerations 2017 (2017)
  8. Assessing Frost / Cold Temperature Injury to Young Corn (2017)
  9. Hybrid Maturities for Delayed Planting (2017)
  10. Corn and Soybean Planting Progress in Indiana Over the Years (2017)
  11. The Planting Date Conundrum for Corn (2017)
  12. Yield Response of Corn to Plant Population in Indiana (2017)
  13. Nitrogen Management Guidelines for Corn in Indiana (2017)
Just a kernel!Just a kernel!Just a kernel!Just a kernel!Just a kernel!

General information about corn

  1. Historical Corn Grain Yields for the U.S. (2017)
  2. Corn and Soybean Planting Progress in Indiana Over the Years (2017)
  3. Prospects for the 2014 Indiana Corn Crop (2014)
  4. Corn, the Great American Crop (2013)
  5. Corn Management for Extreme Conditions (2012)
  6. A Compendium of Biotech Corn Traits (2010)
  7. A Tale of Three Cropping Seasons (2009)
  8. Mitigate the Downside Risks of Corn Following Corn (2007)
  9. Corn Grain Yield Trends: Eyes of the Beholder (2006)
  10. Differences in Stalk Decomposition During the Off-Season (1998)
  11. Isn't It A-Maize-ing! (1998)

Arrested ear development & other ear abnormalities

  1. Multiple Ears on the Same Shank (2014)
  2. Kernel Red Streak in Corn (2012)
  3. Popped Kernels and Silk Cut (2010)
  4. Blunt Ear Syndrome....Again! (2009)
  5. Arrested Ears Resulting From Pre-Tassel Applications of Pesticide & Spray Additive Combinations (2008)
  6. Possible Potential for Arrested Ear Development (2008)
  7. Symptomology of Arrested Ear Development in Corn (2007)
  8. A Problem With "Bouquets" (2006)
  9. Arrested Ear Development (Again!) (2004)
  10. Blunt Ear Syndrome in Corn (2003)
  11. 'Beer Can' Ear Syndrome - 2001(2001)
  12. It’s Never Too Late to Walk Your Fields (2000)
  13. What A MESS! (aka Multiple Ears on a Single Ear Shank) (1999)
  14. Translucent Kernel Syndrome (1999)
  15. Photo Gallery: Translucent Kernel Syndrome (1999)
  16. Beer-Can Ear Syndrome in Corn (1996)
  17. Photo Gallery: Another Example of Beer-Can Ears in Corn (1996)

Early season (mostly stand establishment) problems

  1. Rootless or "Floppy" Corn Syndrome (2017)
  2. Prevalent Purple Plants Perennially Puzzle Producers (2017)
  3. Yellow, Stunted Corn... More Than One Possible Cause (2015)
  4. Silver Leaf Symptom in Corn (2015)
  5. Corkscrewed Mesocotyls & Failed Corn Emergence (2015)
  6. Wrapped & Twisted Whorls in Corn (2014)
  7. Purple Corn & Red Flags (2013)
  8. A Recipe for Crappy Stands of Corn (2012)
  9. Hot & Dry: Toll on Young Corn Plants? (2012)
  10. Early Planted Corn & Cold Weather (2012)
  11. Some Ugly Ducklings Grow Up to be Ugly Ducks, Not Beautiful Swans (2010)
  12. Corn and the Ugly Duckling (2010)
  13. Early Planted Corn Feeling "Under the Weather" (2008)
  14. Cold Temperatures & Early Planted, Emerged Corn (2007)
  15. Crappy Stands of Corn (2006)
  16. Take Time to Evaluate Corn Stand Establishment (2006)
  17. A Tale of Two Plants (2005)
  18. Some Mid-April Planted Corn in Trouble (2005)
  19. Freeze Injury Potential for Early-Planted Corn (2004)
  20. Dry Topsoil Concerns Some Corn Growers (2004)
  21. Water, Water Everywhere... (2004)
  22. Wind & Sandblasting Damage to Corn (2003)
  23. Assessing Corn Recovery From Early-Season Damage (2003)
  24. Corn Replant Decision-Making: Emotions vs. Economics (2003)
  25. Corn Rootworm Injury to Very Young Corn: Photos (2002)
  26. Too Much Dang Stress - Recap (2002)
  27. Some Corn Afflicted With TMDS Syndrome (2002)
  28. Episode II: Attack of the Clods (2002)
  29. Diagnosing Stand Establishment Problems in Corn (2002)
  30. Early Season Frost & Low Temperature Damage to Corn and Soybean (2002)
  31. Gearing Up for Crop Diagnostics 2002 (2002)
  32. Early-Planted Corn & Potential for Freeze Injury (2003)
  33. When Good Corn Fields Turn Bad (2001)
  34. Siamese Twins in Corn? (2000)
  35. Spiraling Sub-Surface Seedlings (2000)
  36. MULE Damage is Back! (1996)

Mid-season problems

  1. Blue Skies... Not smiling on me (2015)
  2. Damage to Corn Plants by Strong Winds (2013)
  3. Decapitation of Corn Plants by Deer (2012)
  4. Hot & Dry: Stress on the corn crop escalates (2012)
  5. Hot & Dry; More of the Same Not Good for Corn Yield (2012)
  6. An Example of "Recovery" From Severe Root-Lodging (2011)
  7. Prospects of Recovery for Root-Lodged Corn (2011)
  8. Kernel Set Scuttlebutt (2011)
  9. Notched Leaf Edges in Corn (2010)
  10. Corn Suffering From Various Forms of WTMDS Syndrome (2002)
  11. Root Lodging Concerns in Corn (2002)
  12. Root Lodged Corn: Photos (2002)
  13. Timing of Crop Stress is Critical! (2002
  14. Sexual Dysfunction in the Corn Field (2001)
  15. Short Corn at Tasseling (2001)
  16. Scrambled Silks, Anyone? (aka Silk balling)(2000)
  17. Scrambled Silks in Corn: Photos (2000)

Late-season problems

  1. Corn Yield, Frosting, & Cake (2013)
  2. Stress During Grain Fill: A Harbinger of Stalk Health Problems (2013)
  3. Tassel-Ears in Corn (2013)
  4. Kernel Red Streak in Corn (2012)
  5. Premature Corn Kernel Sprouting (aka Vivipary) (2012)
  6. Short Husks & Exposed Ears (2012)
  7. Late-Season Hail Damage to Corn (2012)
  8. Premature Ear Declination in Corn (2012)
  9. Opportunities to Assess Yield Potential of Drought-Stressed Corn (2012)
  10. Million Dollar Rain for Some Fields; Not All (2012)
  11. Top Leaf Death or "Dieback" in Corn (2011)
  12. The "Zipper" Pattern of Kernel Abortion in Corn (2011)
  13. Popped Kernels and Silk Cut (2010)
  14. Corn Ear Damage Caused by Bird Feeding (2009)
  15. Reddish-Purple Corn Plants Late in the Season (2009)
  16. Yield Losses and Harvesting Challenges for Severely Lodged Corn (2008)
  17. High Yield Potential Tempered For Some Fields (2004)
  18. Nagging Reminder About Stalk Health Concerns (2003)
  19. Tip Fill Problems in Corn (2003)
  20. Corn Fields Shutting Down (2003)
  21. Stalk Health Issues in Stressed Corn (2003)
  22. Scout Stressed Fields for Root & Stalk Rots (2002)
  23. Poor Kernel Set Symptoms in Corn: Photos (2001)
  24. Pollination Failure Due to Herbicide? (2001)
  25. Scout Fields for Stalk Rots (2001)

Corn Diseases

  1. Safety first! Tips for safely handling moldy corn (2010)
  2. Choose Wisely……Avoid unprofitable strategies to manage moldy grain (2010)
  3. Goss’s Bacterial Wilt Confirmed in Indiana (2008)
  4. Corn Fungicide Hoopla 2008 (2008)
  5. Monitor Corn Fields for Weakened or Diseased Stalks (2007)
  6. Grain Drydown, Stalk Lodging, and Harvest (2005)
  7. Some Mid-April Planted Corn in Trouble (2005)
  8. Stalk Health Concerns (2004)
  9. High Yield Potential Tempered For Some Fields (2004)
  10. Nagging Reminder About Stalk Health Concerns (2003)
  11. Stalk Health Issues in Stressed Corn (2003)
  12. Scout Stressed Fields for Root & Stalk Rots (2002)
  13. Plant Diseases Related to Wet Soils and Late Planting (2002)
  14. Scout Fields for Stalk Rots (2001)
  15. It’s Never Too Late to Walk Your Fields (2000)
  16. Corn Rust - An Epidemic? (2000)
  17. Agronomist Fooled by Disease (2000)
  18. Photo Gallery: Wilt Phase of Stewart's Disease on a Commercial Corn Hybrid (2000)
  19. Once Uniform, Now Uneven (2000)
  20. Photo Gallery: Disease-Related Stand Establishment Problems in Corn (2000)

Drought & heat stress

  1. Opportunities to Assess Yield Potential of Drought-Stressed Corn (2012)
  2. Million Dollar Rain for Some Fields; Not All (2012)
  3. Ear Shake Test to Determine Corn Pollination Progress (2012) (YouTube video)
  4. Drought During Corn Pollination (2012) (YouTube video)
  5. Hot & Dry: Stress on the corn crop escalates (2012)
  6. Hot & Dry: Toll on Young Corn Plants? (2012)
  7. Top Leaf Death or "Dieback" in Corn (2011)
  8. Are Your Ears (of corn) Sagging? (2011)
  9. Short Husks & Exposed Ears (2011)
  10. The "Zipper" Pattern of Kernel Abortion in Corn (2011)
  11. Potential for Corn Recovery from Drought Stress? (2007)
  12. Assessing Effects of Drought on Corn Grain Yield? (2007)
  13. Jumping On To The Drought Bandwagon (2005)
  14. Yield Loss Potential During Grain Fill (2004)
  15. Stalk Health Issues in Stressed Corn (2003)
  16. Scout Stressed Fields for Root & Stalk Rots (2002)
  17. Kernel Abortion Due to Drought Stress (August 2002)
  18. Some Droughty Fields Experiencing Silk Emergence Delay (2002)
  19. Corn Suffering From Various Forms of WTMDS Syndrome (2002)
  20. Y2Dry? Should Indiana Farmers Plan for a 2000 Drought? (2000)
  21. Drought Stress & Corn Silage Decisions (1999)
  22. Thirsty, But Not Dying of Thirst (1999)
  23. Some of Those Corn Plants Are Thirsty! (1996)
  24. Drought & Heat Stress Effects on Corn Pollination (1996)

Soil fertility, plant nutrient management

  1. Soil Sampling to Assess Current Soil N Availability (2017)
  2. Nitrogen Management Guidelines for Corn in Indiana (2017)
  3. Saturated Soils and Supplemental Nitrogen: Research Update (2016)
  4. Response of Corn to Starter Fertilizer – Research Update (2016)
  5. Corn Stalk Nitrate Tests - Research & Recommendation Update (2014)
  6. Response of Corn to Late-season Nitrogen Application (2011)
  7. Soggy Soils, N Loss, & Supplemental Nitrogen Fertilizer for Corn (2004)
  8. End-of-Season Corn Stalk Nitrate Test (2003)
  9. Fertilizer Reckoning for the Mathematically Challenged (2002)
  10. Optimizing Nitrogen Fertilizer Decisions (2001)

Flooding, ponding

  1. Effects of Flooding or Ponding on Corn Prior to Tasseling (2017)
  2. Salvageability of Waterlogged Fields of Corn: That's the $64 Question (2015)
  3. Assessing Available Nitrogen from Fall- and Spring-Applied Nitrogen Applications (2015)
  4. Flood or Ponding Damage to Corn Late in the Growing Season (2014)
  5. Death by Drowning (2010)
  6. Toadstranglers in August: Good or Bad for the Corn Crop? (2008)
  7. Nitrogen Loss in Wet and Wetter Fields (2008)
  8. Replant Considerations for Flooded Corn (2008)
  9. Rains, Hail, Wind: Déjà vu All Over Again? (2006)
  10. Water, Water Everywhere... (2004)
  11. Soggy Soils, N Loss, & Supplemental Nitrogen Fertilizer for Corn (2004)
  12. Photo Gallery: Bacterial Ear Rot in Corn Due to Flooding (2003)
  13. Photo Gallery: Corn & Soybean Loss From Floods & Ponding (2003)
  14. Rain, Hail, Wind: What Next? (2003)
  15. Seed Furrow Erosion in No-Till Corn (2003)
  16. Delayed Planting Considerations for Corn (2003)
  17. The Impact of Excessive Rainfall on Soybeans (2000)
  18. Soggy Soils Severely Stunt Stands of Corn (2000)
  19. Photo Gallery: Effects of Soggy Soils on Corn Growth (2000)
  20. Saturated Soils Taking Their Toll on Corn (1998)
  21. Post-Flood Syndrome: Interesting Research (1998)
  22. Bacterial Ear Rot in Flooded Corn (1998)

Frost & low temperature damage

  1. Assessing Frost / Cold Temperature Injury to Young Corn (2017)
  2. Silver Leaf Symptom in Corn (2015)
  3. Early Planted Corn & Cold Weather (2012)
  4. Delayed Corn Grain Maturity & Frost / Freeze Worries (2011)
  5. Cool Days, Cold Nights, Slow Corn, What's Next? (2009)
  6. Cool Temperatures: Good News or Bad News for Corn? (2009)
  7. Cold Temperatures & Early Planted, Emerged Corn (2007)
  8. A Tale of Two Frosted Plants: Photos (2005)
  9. I've Got the Corny Stand Establishment Blues... (2005)
  10. Stress Continues for Corn Growing Under Refrigerated Conditions: Photos (2005)
  11. Did We Dodge a Frozen Corn Bullet? (2005)
  12. Freeze Injury Potential for Early-Planted Corn (2004)
  13. Corkscrewed Corn Seedlings (2004)
  14. Early Frost & Immature Corn Grain (2003)
  15. Risk of Fall Frost Injury to Immature Corn Grain (2002)
  16. Early Season Frost & Low Temperature Damage to Corn and Soybean (2002)
  17. Short Corn at Tasseling (2001)
  18. Mother’s Day Frost Causes Some Damage to Indiana Corn and Soybean (2001)
  19. Frost & Low Temperature Injury to Corn and Soybean (2001)
  20. Symptoms of Low Temperature Injury to Corn and Soybean (2001)

Grain fill period

  1. Estimating Corn Grain Yield Prior to Harvest (2016)
  2. Warm Nights & High Yield: Oil & Water? (2016)
  3. Grain Fill Stages in Corn (2016)
  4. Cool Temperatures & Grain Yield: Déjà vu for Corn? (2014)
  5. Field Drydown of Mature Corn Grain (2013)
  6. Corn Yield, Frosting, & Cake (2013)
  7. Effects of Stress During Grain Filling in Corn (2013)
  8. Stress During Grain Fill: A Harbinger of Stalk Health Problems (2013)
  9. Unseasonably Cool Weather: Good or Bad for Corn During Grain Fill? (2013)
  10. Predicting Corn Grain Maturity Dates for Delayed Plantings (2011)
  11. Navigating Through the Grain Fill Period (2010)
  12. Cool Days, Cold Nights, Slow Corn, What's Next? (2009)
  13. Kernel Set Scuttlebutt (2008)
  14. Late Planted Corn: Enough Time to Mature? (2008)
  15. Grain Drydown, Stalk Lodging, and Harvest (2005)
  16. Monitor Corn Fields for Weakened or Diseased Stalks (2005)
  17. High Yield Potential Tempered For Some Fields (2004)
  18. Long Ears, Blank Tips (2004)
  19. Tip Fill Problems in Corn (2003)
  20. Corn Fields Shutting Down (2003)
  21. Corn Grain Moisture Outlook - 2003 (2003)
  22. Stalk Health Issues in Stressed Corn (2003)
  23. Scout Stressed Fields for Root & Stalk Rots (2002)
  24. Photo Gallery: Kernel Abortion Due to Drought Stress (August 2002)
  25. Photo Gallery: Poor Kernel Set Symptoms in Corn (2001)
  26. Sexual Dysfunction in the Corn Field (2001)
  27. Pollination Failure Due to Herbicide? (2001)

Growth staging, leaf staging, phenology

  1. Heat Unit Concepts Related to Corn Development (2017)
  2. Determining Corn Leaf Stages (2014)
  3. Use Thermal Time to Predict Leaf Stage Development in Corn (2014)
  4. When Will My Corn Crop Mature? (2013)
  5. Predicting Corn Grain Maturity Dates for Delayed Plantings (2011)
  6. Some Ugly Ducklings Grow Up to be Ugly Ducks, Not Beautiful Swans (2010)
  7. Corn and the Ugly Duckling (2010)
  8. Tips for Staging Damaged Corn (2008)
  9. Corn Crop Continues Slow Progress (2008)
  10. Late Planted Corn: Enough Time to Mature? (2008)
  11. Ear Size Determination in Corn (2007)
  12. Growing Points of Interest (2007)
  13. Photo Gallery: Growing Point Location in Corn at Different Growth Stages (2007)
  14. Tillers or "Suckers" in Corn: Good or Bad? (2003)

Germination, emergence, root development, stand establishment

  1. "Rootless" or "Floppy" Corn Syndrome (2017)
  2. Requirements for Uniform Germination and Emergence of Corn (2015)
  3. The Emergence Process in Corn (2014)
  4. Root Development in Young Corn (2013)
  5. Corkscrewed Mesocotyls & Failed Corn Emergence (2012)
  6. Early Planted Corn & Cold Weather (2012)
  7. Germination Events in Corn (2010)
  8. Photo Gallery: Visible Indicators of Germination in Corn (2010)
  9. Variable Emergence Due to Variable Seedbed Moisture (2007)
  10. Floppy Corn & Related Symptoms (2004)
  11. Over-Extended Mesocotyls and Floppy Corn Syndrome (2004)
  12. Dry Topsoil Concerns Some Corn Growers (2004)
  13. Blue Skies Smiling On Me... (2003)
  14. No-Till Corn Planting Trash Talk (2003)
  15. Uneven Corn Fields (1999)
  16. Soil Temperature, Corn Emergence, & Stand Problems (1999)
  17. Erotic Corn Fields (1998)
  18. More Thoughts on Corn Root Development in 1995. (1995)
  19. Tall Corn, Short Corn, Green Corn, Yellow Corn. (1995)

Hail damage

  1. Recovery From Hail Damage to Young Corn (2015)
  2. Late-Season Hail Damage to Corn (2012)
  3. Photo Gallery: Recovery From Hail Damage (2008)
  4. Rain, Hail, Wind: What Next? (2003)
  5. Options for Hail-Damaged Corn Fields. (1995)

Harvest, grain drydown, yield estimation

  1. Identify and Eliminate "Gremlins" From Yield Monitor Data (2016)
  2. Estimating Corn Grain Yield Prior to Harvest (2016)
  3. Yield Monitor Calibration Will Be Challenging This Year in Some Indiana Fields (2015)
  4. Wandering Hybrid Syndrome: Yield Monitor Errors (2014)
  5. Wandering Swath Width Syndrome: Yield Monitor Errors (2014)
  6. A Few Things to Do Before Corn Harvest (2014)
  7. Field Drydown of Mature Corn Grain (2013)
  8. Corn Grain Test Weight (2014)
  9. Opportunities to Assess Yield Potential of Drought-Stressed Corn (2012)
  10. Yield Monitor Calibration: Garbage In, Garbage Out (2010)
  11. Safety first! Tips for safely handling moldy corn (2010)
  12. Choose Wisely……Avoid unprofitable strategies to manage moldy grain (2010)
  13. Corn Crop Continues Snail's Pace of Grain Drying & Harvest (2009)
  14. Stress During Grain Fill: A Harbinger of Stalk Health Problems (2009)
  15. Wet Grain a Surprise to Some Growers (2008)
  16. Yield Losses and Harvesting Challenges for Severely Lodged Corn (2008)
  17. Grain Drydown, Stalk Lodging, and Harvest (2005)
  18. Stalk Health Concerns (2004)
  19. Nagging Reminder About Stalk Health Concerns (2003)
  20. Corn Grain Moisture Outlook - 2003 (2003)
  21. Stalk Health Issues in Stressed Corn (2003)
  22. Scout Stressed Fields for Root & Stalk Rots (2002)
  23. Transgenic Corn Harvest Reminders (2001)
  24. It’s Never Too Late to Walk Your Fields (2000)
  25. Unusual Senescence in Corn: Another Thought (1998)
  26. Final Reminder to Spot Check Corn Fields. (1996)
  27. Thoughts on the 1996 Corn Harvest (1996)

Herbicides & herbicide injury

  1. Weather Delays and Rotation RestrictionsLink to PDF formatted document (2002)
  2. Nothing is Growing But the WeedsLink to PDF formatted document (2002)
  3. Pollination Failure Due to Herbicide? (2001)
  4. Herbicide Injury to Corn (1996)

Hybrid selection

  1. Hybrid Maturities for Delayed Planting (2015)
  2. Hybrid Selection: Where's the Beef? (2010)
  3. A Compendium of Biotech Corn Traits (2010)
  4. Take Notes from Corn Hybrid Plots (2006)
  5. Take Time Now to Evaluate Hybrid Plots (2005)
  6. Corn Segregation: A Necessary Evil in Today's Biotech Age? (2003)
  7. Hybrid Performance: Take Notes Now (2001)
  8. Take the Time to Wander Crop Variety Plots(2000)
  9. All I Want For Christmas Is……. (1998)

Leaf discoloration

  1. Possibility for Prevalence of Purple Plants (2003)
  2. Isn’t Corn Supposed to be Green? (2000)
  3. Silver Leaf Symptom in Corn (2000)
  4. Corn That's Every Color But Green (1996)
  5. More Thoughts on Stunted, Yellow or Purple Corn (1996)

On-farm research

  1. A Practical Guide to On-Farm Research (2009)
  2. Tips for Test Plots (2000)

Planting date & replanting issues

  1. Update on "Safe" Hybrid Maturities for Late Plantings (2017)
  2. Corn Replant Considerations 2017 (2017)
  3. Hybrid Maturities for Delayed Planting (2017)
  4. The Planting Date Conundrum for Corn (2017)
  5. How Late Can I Replant Corn? (2015)
  6. Corn and Soybean Planting Progress in Indiana Over the Years (2015)
  7. To Plant or Not to Plant Corn: A Moot Question? (2014)
  8. Corn Replant Decisions (2012)
  9. Predicting Corn Grain Maturity Dates for Delayed Plantings (2011)
  10. Time to Park the Corn Planters (2009)
  11. Einstein's Theory of Relativity as it Relates to Soil Moisture (2009)
  12. Late Planting & Relative Hybrid Maturity Decisions (2009)
  13. Replanted Corn Fields Catching Up (2006)
  14. Late Planting/Replanting & Relative Hybrid Maturity (2006)
  15. Singin’ From The Same Sheet of Replant Music (2005)
  16. I've Got the Corny Stand Establishment Blues... (2005)
  17. Late Planted Corn: Enough Time to Mature? (2008)
  18. Grain Sorghum Considerations for Late Planting in Southern Indiana (2008)
  19. More Thoughts on Late Corn Planting (2008)
  20. Considerations for Planting Corn into Damaged Fields of Wheat (2007)
  21. Risk of Fall Frost Injury to Immature Corn Grain (2002)
  22. Weather Delays and Rotation Restrictions (2002)
  23. Agronomic Reasons Not to Switch From Corn to Soybean (2002)
  24. Delayed Plantings and Crop Insurance (2002)
  25. Plant Diseases Related to Wet Soils and Late Planting (2002)
  26. Nothing is Growing But the Weeds (2002)
  27. Pest Control in Late-Planted Corn and Soybean (2002)
  28. Use No-till in Delayed Planting of both Corn and Soybean (2002)
  29. Late-Planted Corn & Seeding Rates (2002)
  30. Interpreting Hybrid Maturity Ratings (2002)
  31. Rainy Days, Soggy Soils, & Idle Planters (2002)
  32. Considerations for the Day of Planting (2002)
  33. Thoughts on Corn Planting Dates (2001)
  34. Corn Planting Fever! (2000)
  35. When the Weather Breaks..... (1996)
  36. Delayed Planting Management Ticklers (1996)
  37. The Mad Rush to Plant Corn (1996)

Plant populations, seeding rates, seeding depth

  1. Yield Response of Corn to Plant Population in Indiana (2017)
  2. Thoughts on Seeding Rates for Corn (2013)
  3. Seeding Depth Considerations for Corn (2012)
  4. Late-Planted Corn & Seeding Rates (2002)
  5. Seeding Depth Decisions for Corn (2000)
  6. Don't Let El Niño Influence Your Corn Seeding Rate (1998)
  7. Seed Size, Seed Quality, and Planter Adjustments (1996)

Pollination, silking, flowering

  1. A Fast & Accurate Pregnancy Test for Corn (2016)
  2. Silk Emergence (2016)
  3. Tassel Emergence & Pollen Shed (2016)
  4. Unusually Long Silks in Corn (2015)
  5. Tassel-Ears in Corn (2013)
  6. Ear Shake Test to Determine Corn Pollination Progress (2012) (YouTube video)
  7. Drought During Corn Pollination (2012) (YouTube video)
  8. Next Big Hurdle: Pollen Shed and Silking (2012)
  9. Replanted Corn Fields Catching Up (2006)
  10. Warm Enough For You? (2006)
  11. Some Droughty Fields Experiencing Silk Emergence Delay (2002)
  12. Corn Suffering From Various Forms of WTMDS Syndrome (2002)
  13. Scrambled Silks, Anyone? (aka Silk balling) (2000)
  14. Photo Gallery: Scrambled Silks in Corn (2000)
  15. Suggestive Behavior in the Corn Field (2000)
  16. Silk Clipping & Pollination Success or Failure (1999)
  17. Effects (or Lack Thereof) of Recent Heat Wave on Corn (1999)

Precision agriculture, site specific crop management, GIS

  1. Identify and Eliminate "Gremlins" From Yield Monitor Data (2016)
  2. Wandering Hybrid Syndrome: Yield Monitor Errors (2014)
  3. Wandering Swath Width Syndrome: Yield Monitor Errors (2014)
  4. Yield Monitor Calibration: Garbage In, Garbage Out (2010)
  5. Running Out of Rainy Day Jobs? (2006)
  6. Tips for Test Plots (2000)
  7. Sparse versus Dense Spatial Data (2000)
  8. Opportunities for Mapping Crop Problem Areas (2000)
  9. Consistent Variability: An Oxymoron or a Requirement for Precision Farming? (2000)
  10. Site-Specific Management of Corn: Perennial versus Sporadic Yield Limiting Factors (1998)
  11. Combine Yield Monitors, A Wonderful Tool, But..... (1995)
  12. Site Specific Seeding Rates for Corn (1995)

Stand uniformity, planter maintenance

  1. Variable Emergence Due to Variable Seedbed Moisture (2007)
  2. Take Time to Evaluate Corn Stand Establishment (2006)
  3. Planter Maintenance: Less Down Time, More Yield (2004)
  4. No-Till Corn Planting Trash Talk (2003)
  5. Diagnosing Stand Establishment Problems in Corn (2002)
  6. End-of-Season Planter Care (2002)
  7. Considerations for the Day of Planting (2002)
  8. When Good Corn Fields Turn Bad (2001)
  9. Keep an Eye on Those Corn Plants! (1998)
  10. A Recipe for Lousy-Yielding Corn (1998)
  11. Planter Issues Relative to Unusually Small Seed Corn (1998)