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ne 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.
I have attempted to categorize the articles into meaningful areas of
agronomic interest 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.
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.
of Nebraska.
R.L. (Bob) Nielsen
Agronomy Dept., Purdue Univ.
West Lafayette, IN 47907-2054
Email address:
    
Reasonably Articles
- Late Planting/Replanting
& Relative Hybrid Maturity (2008)
- A Recipe for Crappy Stands
of Corn (2008)
- Corn Planting Date is Important,
But.... (2008)
- Late Nitrogen Applications
on Wheat (2008)
- Nitrogen Management Update
2008 (2007)
- Mitigate the Downside Risks of Corn
Following Corn (2007)

General information about corn
- Mitigate the Downside Risks of Corn
Following Corn (2007)
- Corn
Yield Trends for Indiana: 1930 to 2007 (2007)
- Corn Grain Yield Trends:
Eyes of the Beholder (2006)
- Corn Yield Trends for
Indiana (2005)
- Differences in Stalk Decomposition
During the Off-Season (1998)
- Isn't It A-Maize-ing! (1998)
Arrested ear development & other oddities
- Symptomology of Arrested
Ear Development in Corn (2007)
- Multiple Ears on the Same Shank
(2007)
- A Problem With "Bouquets"
(2006)
- Arrested Ear Development
(Again!) (2004)
- Blunt Ear Syndrome in
Corn (2003)
- 'Beer Can' Ear Syndrome
- 2001(2001)
- Its Never
Too Late to Walk Your Fields (2000)
- Beer-Can Ear Syndrome in Corn
(1996)
- Photo Gallery: Another Example of Beer-Can Ears in Corn
(1996)
Biotechnology, GMOs, genetic engineering, transgenics
- Corn Segregation: A Necessary
Evil in Today's Biotech Age? (2003)
- Transgenic Corn Harvest
Reminders (2001)
- GMO Issues Facing Indiana Farmers
in 2001 (2001)
- Transgenic Crops in Indiana:Short-term
issues for farmers (2000)
- Minimizing Pollen Drift &
Commingling of GMO and non-GMO Corn Grain (2000)
- Recommendations for Producing
Non-GMO Corn and Soybeans: A Plan for Year 2000 (Iowa State Univ.) (2000)
- EU Approval Status of Transgenic Corn
Hybrids - 10 March 1999 (1999)
- All I Want For Christmas Is
.
(1998)
Crop diagnostics, crop problems
- A Recipe for Crappy Stands
of Corn (2008)
- Monitor Corn Fields for
Weakened or Diseased Stalks (2007)
- Kernel Set Scuttlebutt (2007)
- Be on the Alert for Floppy,
Rootless Corn (2007)
- Prevalent Purple Plants Puzzle
Producers (2007)
- Considerations for Planting
Corn into Damaged Fields of Wheat (2007)
- Cold Temperatures &
Early Planted, Emerged Corn (2007)
- Late Season Corny Fearmongering
(2006)
- Crappy Stands of Corn
(2006)
- Take Time to Evaluate
Corn Stand Establishment (2006)
- Popped Kernels and
Silk Cut (2005)
- Grain Drydown, Stalk
Lodging, and Harvest (2005)
- Top Leaf Death in Corn
(2005)
- Yellow Tops and Twisted
Whorls (2005)
- Photo Gallery: A
Tale of Two Plants (2005)
- Singin’ From The
Same Sheet of Replant Music (2005)
- Some Mid-April Planted
Corn in Trouble (2005)
- Stalk Health Concerns
(2004)
- High Yield Potential
Tempered For Some Fields (2004)
- Tassel-Ears in Corn
(2004)
- Water, Water Everywhere...
(2004)
- Photo Gallery: Twisted
Whorl Symptoms in Corn (2004)
- Wrapped & Twisted
Whorls in Corn (2004)
- “Silver Leaf”
Symptom in Young Corn (2004)
- Effects
of Flooding or Ponding on Young Corn (2004)
- Freeze Injury Potential
for Early-Planted Corn (2004)
- Corkscrewed Corn Seedlings
(2004)
- Dry Topsoil Concerns Some
Corn Growers (2004)
- Early Frost & Immature
Corn Grain (2003)
- Nagging Reminder About
Stalk Health Concerns (2003)
- Tip Fill Problems in Corn
(2003)
- Corn Fields Shutting Down
(2003)
- Stalk Health Issues in
Stressed Corn (2003)
- Blue Skies Smiling On Me...
(2003)
- Photo Gallery: Silver Leaf Symptom
in Corn (2003)
- Silver Leaf Symptom in
Corn (2003)
- Wind & Sandblasting
Damage to Corn (2003)
- Assessing Corn Recovery From
Early-Season Damage (2003)
- Corn Replant Decision-Making:
Emotions vs. Economics (2003)
- No-Till Corn Planting
Trash Talk (2003)
- Early-Planted Corn
& Potential for Freeze Injury (2003)
- Droopy Ears in Corn
(2002)
- Scout Stressed Fields for
Root & Stalk Rots (2002)
- Corn Suffering From Various
Forms of WTMDS Syndrome (2002)
- Root Lodging Concerns in
Corn (2002)
- Photo Gallery: Root Lodged Corn
(2002)
- Timing of Crop Stress
is Critical! (2002
- Photo Gallery: Corn Rootworm
Injury to Very Young Corn (2002)
- Too Much Dang Stress - Recap
(2002)
- Some Corn Afflicted With TMDS
Syndrome (2002)
- Episode II: Attack of the Clods
(2002)
- Diagnosing Stand Establishment
Problems in Corn (2002)
- Early Season Frost &
Low Temperature Damage to Corn and Soybean (2002)
- Gearing Up for Crop Diagnostics
2002 (2002)
- Photo Gallery: Poor Kernel Set Symptoms
in Corn (2001)
- Sexual Dysfunction in the
Corn Field (2001)
- Pollination Failure
Due to Herbicide? (2001)
- Late-Season Hail Damage
to Corn (2001)
- Scout Fields for Stalk
Rots (2001)
- Short Corn at Tasseling
(2001)
- Hail Damage in Corn: Moving
Beyond Grief to Damage Assessment (2001)
- Photo Gallery: Hail Damage to Young
Corn - Photo Gallery (2001)
- When Good Corn Fields
Turn Bad (2001)
- Mothers Day Frost
Causes Some Damage to Indiana Corn and Soybean (2001)
- Be Alert for Floppy Corn
(2001)
- Scrambled Silks, Anyone?
(aka Silk balling)(2000)
- Photo Gallery: Scrambled Silks in
Corn (2000)
- Gird thyself for battle!
(2000)
- Siamese Twins in Corn?
(2000)
- Photo Gallery: Disease-Related Stand
Establishment Problems in Corn (2000)
- Plan Now for Timely Crop Problem
Troubleshooting (1999)
- Droopy Ears in Corn (1999)
- What A MESS! (aka Multiple Ears
on a Single Ear Shank) (1999)
- What A MESS! (aka Multiple Ears
on Single Ear Shank) (1998)
- Nobody Knows the Troubles I've
Seen
. (1998)
- Timely Troubleshooting is Important
(1996)
- Incomplete Kernel Set in Corn
(1996)
- Corn Beginning to Shut Down?
(1996)
- Incomplete Kernel Set in Yellow
Dent Corn. (1995)
- Repeated Above-Ground Injury is
Hard on Young Corn Seedlings. (1995)
- Leaf Rolling as an Indicator of
Soil Compaction. (1995)
- Anhydrous Ammonia Injury as an Indicator
of Soil Compaction. (1995)
- Effects of Stress During Grain Fill
in Corn. (1995)
- Premature Plant Death in Corn.
(1995)
Diseases
- Monitor Corn Fields for
Weakened or Diseased Stalks (2007)
- Corn Fungicide Hoopla
(2007)
- Grain Drydown, Stalk
Lodging, and Harvest (2005)
- Some Mid-April Planted
Corn in Trouble (2005)
- Stalk Health Concerns
(2004)
- High Yield Potential
Tempered For Some Fields (2004)
- Nagging Reminder About
Stalk Health Concerns (2003)
- Stalk Health Issues in
Stressed Corn (2003)
- Scout Stressed Fields for
Root & Stalk Rots (2002)
- Plant
Diseases Related to Wet Soils and Late Planting
(2002)
- Scout Fields for Stalk
Rots (2001)
- Its Never
Too Late to Walk Your Fields (2000)
- Corn Rust - An Epidemic?
(2000)
- Agronomist Fooled by Disease
(2000)
- Photo Gallery: Wilt Phase of Stewart's
Disease on a Commercial Corn Hybrid (2000)
- Once Uniform, Now Uneven
(2000)
- Photo Gallery: Disease-Related Stand
Establishment Problems in Corn (2000)
- Scout Corn Fields for Stalk Rot
Development (1995)
Drought & heat stress
- Potential for Corn Recovery
from Drought Stress? (2007)
- Assessing Effects of Drought on
Corn Grain Yield? (2007)
- Jumping On To The Drought
Bandwagon (2005)
- Yield Loss Potential During
Grain Fill (2004)
- Stalk Health Issues in Stressed
Corn (2003)
- Droopy Ears in Corn (2002)
- Scout Stressed Fields for Root
& Stalk Rots (2002)
- Photo Gallery: Kernel Abortion
Due to Drought Stress (August 2002)
- Some Droughty Fields Experiencing
Silk Emergence Delay (2002)
- Corn Suffering From Various Forms
of WTMDS Syndrome (2002)
- Y2Dry? Should Indiana Farmers
Plan for a 2000 Drought? (2000)
- Drought Stress & Corn Silage Decisions
(1999)
- Thirsty, But Not Dying of Thirst
(1999)
- Some of Those Corn Plants Are Thirsty!
(1996)
- Drought & Heat Stress Effects on Corn
Pollination (1996)
Fertility, nutrient management
- Nitrogen Management Update
2008 (2007)
- Soggy Soils, N Loss,
& Supplemental Nitrogen Fertilizer for Corn (2004)
- End-of-Season Corn
Stalk Nitrate Test (2003)
- Fertilizer Reckoning for
the Mathematically Challenged (2002)
- Optimizing Nitrogen
Fertilizer Decisions (2001)
Flooding, ponding
- Rains, Hail, Wind: Déjà vu All
Over Again? (2006)
- Water, Water Everywhere...
(2004)
- Soggy Soils, N Loss, &
Supplemental Nitrogen Fertilizer for Corn (2004)
- Effects
of Flooding or Ponding on Young Corn (2004)
- Photo Gallery: Bacterial Ear Rot in Corn Due to
Flooding (2003)
- Photo Gallery: Corn & Soybean Loss From Floods
& Ponding (2003)
- Rain, Hail, Wind: What Next?
(2003)
- Seed Furrow Erosion in
No-Till Corn (2003)
- Delayed Planting Considerations
for Corn (2003)
- The Impact of Excessive Rainfall
on Soybeans (2000)
- Soggy Soils Severely Stunt Stands
of Corn (2000)
- Photo Gallery: Effects of Soggy Soils
on Corn Growth (2000)
- Saturated Soils Taking Their Toll on
Corn (1998)
- Post-Flood Syndrome: Interesting Research
(1998)
- Bacterial Ear Rot in Flooded Corn
(1998)
Floppy corn, rootless corn
- Be on the Alert for Floppy, Rootless
Corn (2007)
- Floppy Corn & Related
Symptoms (2004)
- Over-Extended Mesocotyls and
Floppy Corn Syndrome (2004)
- Be Alert for Floppy Corn
(2001)
Frost & low temperature damage
- Cold Temperatures & Early
Planted, Emerged Corn (2007)
- Photo Gallery: A
Tale of Two Plants (2005)
- I've Got the Corny Stand
Establishment Blues... (2005)
- Photo Gallery: Stress
Continues for Corn Growing Under Refrigerated Conditions (2005)
- Did We Dodge a Frozen Corn
Bullet? (2005)
- “Silver Leaf” Symptom
in Young Corn (2004)
- Freeze Injury Potential
for Early-Planted Corn (2004)
- Corkscrewed Corn Seedlings
(2004)
- Early Frost & Immature Corn
Grain (2003)
- Photo Gallery: Silver Leaf Symptom
in Corn (2003)
- Silver Leaf Symptom in Corn
(2003)
- Risk of Fall Frost
Injury to Immature Corn Grain (2002)
- Early Season Frost & Low
Temperature Damage to Corn and Soybean (2002)
- Short Corn at Tasseling (2001)
- Mothers Day Frost Causes
Some Damage to Indiana Corn and Soybean (2001)
- Frost & Low Temperature
Injury to Corn and Soybean (2001)
- Photo Gallery: Symptoms of Low
Temperature Injury to Corn and Soybean (2001)
- Assessing Frost Damage to Young Corn
(1998)
- Frost Damage to Corn (1996)
- Potential Yield Losses in Corn From Fall
Frost Damage (1996)
Germination, emergence, stand establishment
- Variable Emergence Due
to Variable Seedbed Moisture (2007)
- Root Development in Young Corn (2007)
- Germination Events in Corn
(2007)
- Photo Gallery: Visible
Indicators of Germination in Corn (2007)
- The Emergence Process in Corn (2007)
- Photo Gallery: Coleoptile
Appearance During Emergence (2007)
- Requirements for Uniform Germination
and Emergence of Corn (2007)
- Dry Topsoil Concerns Some Corn
Growers (2004)
- Blue Skies Smiling On Me...
(2003)
- No-Till Corn Planting Trash
Talk (2003)
- Uneven Corn Fields (1999)
- Soil Temperature, Corn Emergence, &
Stand Problems (1999)
- Erotic Corn Fields (1998)
- More Thoughts on Corn Root Development
in 1995. (1995)
- Tall Corn, Short Corn, Green Corn, Yellow
Corn. (1995)
Grain fill period
- Kernel Set Scuttlebutt (2007)
- Grain Fill Stages in Corn (2007)
- Grain Drydown, Stalk Lodging,
and Harvest (2005)
- Monitor Corn Fields for
Weakened or Diseased Stalks (2005)
- Field Drydown of Mature Corn
Grain (2005)
- High Yield Potential
Tempered For Some Fields (2004)
- Long Ears, Blank Tips (2004)
- Estimating Corn Grain Yield Prior to
Harvest (2004)
- Tassel-Ears in Corn (2004)
- Yield Loss Potential During
Grain Fill (2004)
- Tip Fill Problems in Corn (2003)
- Corn Fields Shutting Down (2003)
- Corn Grain Moisture Outlook
- 2003 (2003)
- Stalk Health Issues in Stressed
Corn (2003)
- Scout Stressed Fields for Root
& Stalk Rots (2002)
- Photo Gallery: Kernel Abortion
Due to Drought Stress (August 2002)
- Photo Gallery: Poor Kernel Set Symptoms
in Corn (2001)
- Sexual Dysfunction in the Corn
Field (2001)
- Pollination Failure Due to
Herbicide? (2001)
Growth staging, leaf staging, phenology, physiology
- Ear Size Determination in Corn (2007)
- Growing Points of Interest (2007)
- Photo Gallery:
Growing Point Location in Corn at Different Growth Stages (2007)
- Tips for Staging Damaged Corn (2007)
- Determining Corn Leaf Stages (2007)
- Heat Unit Concepts Related to Corn Development
(2007)
- Use Thermal Time to Predict Leaf
Stage Development in Corn (2007)
- Tillers or "Suckers" in Corn: Good
or Bad? (2003)
- Corn And The Ugly Duckling. (1995)
Hail damage
- Photo Gallery: Recovery
From Hail Damage (2007)
- Recovery From Hail Damage to
Young Corn (2007)
- Rain, Hail, Wind: What Next?
(2003)
- Late-Season Hail Damage to Corn
(2001)
- Options for Hail-Damaged Corn Fields.
(1995)
Harvest, grain drydown, yield estimation
- Estimating Corn Grain Yield Prior to
Harvest (2007)
- Grain Drydown, Stalk Lodging,
and Harvest (2005)
- Field Drydown of Mature Corn
Grain (2005)
- Stalk Health Concerns (2004)
- Nagging Reminder About Stalk
Health Concerns (2003)
- Corn Grain Moisture Outlook
- 2003 (2003)
- Stalk Health Issues in Stressed
Corn (2003)
- Scout Stressed Fields for Root
& Stalk Rots (2002)
- Transgenic Corn Harvest
Reminders (2001)
- Its Never Too
Late to Walk Your Fields (2000)
- Unusual Senescence in Corn: Another Thought
(1998)
- Final Reminder to Spot Check Corn Fields.
(1996)
- Thoughts on the 1996 Corn Harvest (1996)
Herbicides & herbicide injury
- Weather
Delays and Rotation Restrictions
(2002)
- Nothing
is Growing But the Weeds
(2002)
- Pollination Failure Due to
Herbicide? (2001)
- Herbicide Injury to Corn (1996)
Hybrid selection
- Late Planting/Replanting
& Relative Hybrid Maturity (2008)
- Hybrid Selection: Where's the Beef?
(2007)
- Take Notes from Corn Hybrid
Plots (2006)
- Take Time Now to Evaluate
Hybrid Plots (2005)
- Interpreting Hybrid
Maturity Ratings (2002)
- Hybrid Performance:
Take Notes Now (2001)
- Take the Time to
Wander Crop Variety Plots(2000)
Leafing out underground
- Spiraling Sub-Surface
Seedlings (2000)
- MULE Damage is Back! (1996)
Leaf discoloration
- Possibility for Prevalence of
Purple Plants (2003)
- Isnt Corn Supposed to be
Green? (2000)
- Silver Leaf Symptom in Corn
(2000)
- Corn That's Every Color But Green
(1996)
- More Thoughts on Stunted, Yellow or Purple
Corn (1996)
On-farm research
- Tips for Test Plots (2000)
Planting date issues
- Late Planting/Replanting
& Relative Hybrid Maturity (2008)
- Corn Planting Date is Important,
But.... (2008)
- Considerations for Planting
Corn into Damaged Fields of Wheat (2007)
- Grain Sorghum Considerations
for Late Planting in Southern Indiana (2003)
- Risk of Fall
Frost Injury to Immature Corn Grain (2002)
- Weather
Delays and Rotation Restrictions
(2002)
- Agronomic
Reasons Not to Switch From Corn to Soybean (2002)
- Delayed
Plantings and Crop Insurance
(2002)
- Plant
Diseases Related to Wet Soils and Late Planting
(2002)
- Nothing
is Growing But the Weeds
(2002)
- Pest
Control in Late-Planted Corn and Soybean
(2002)
- Use No-till in
Delayed Planting of both Corn and Soybean (2002)
- Late-Planted
Corn & Seeding Rates (2002)
- Interpreting Hybrid
Maturity Ratings (2002)
- Rainy Days, Soggy Soils,
& Idle Planters (2002)
- Considerations for
the Day of Planting (2002)
- Thoughts on
Corn Planting Dates (2001)
- Corn Planting Fever!
(2000)
- When the Weather Breaks.....
(1996)
- Delayed Planting Management Ticklers
(1996)
- The Mad Rush to Plant Corn (1996)
Plant populations, seeding rates, seeding depth
- Late-Planted
Corn & Seeding Rates (2002)
- Seeding Depth Decisions for
Corn (2000)
- Don't Let El Niño Influence Your
Corn Seeding Rate (1998)
- Seed Size, Seed Quality, and Planter Adjustments
(1996)
- Biased Opinion on Corn Seeding Depth
(1996)
Pollination, silking, flowering
- A Fast & Accurate Pregnancy Test for
Corn (2007)
- Tassel Emergence & Pollen Shed (2007)
- Silk Emergence (2007)
- Replanted Corn Fields Catching
Up (2006)
- Warm Enough For You? (2006)
- Tassel-Ears in Corn (2004)
- Some Droughty Fields Experiencing
Silk Emergence Delay (2002)
- Corn Suffering From Various Forms
of WTMDS Syndrome (2002)
- Scrambled Silks, Anyone? (aka
Silk balling) (2000)
- Photo Gallery: Scrambled Silks in
Corn (2000)
- Suggestive Behavior in the Corn
Field (2000)
- Silk Clipping & Pollination Success
or Failure (1999)
- Effects (or Lack Thereof) of Recent Heat
Wave on Corn (1999)
Precision farming, site specific crop management, GIS
- Running Out of Rainy Day Jobs?
(2006)
- Tips for Test Plots (2000)
- Sparse versus Dense Spatial
Data (2000)
- Opportunities for Mapping Crop
Problem Areas (2000)
- Consistent Variability: An
Oxymoron or a Requirement for Precision Farming? (2000)
- Site-Specific Management of Corn: Perennial
versus Sporadic Yield Limiting Factors (1998)
- Combine Yield Monitors, A Wonderful Tool,
But..... (1995)
- Site Specific Seeding Rates for Corn
(1995)
Replanting issues
- Replanted Corn Fields Catching
Up (2006)
- Late Planting/Replanting
& Relative Hybrid Maturity (2006)
- Corn Replant Decision-Making
(2006)
- Singin’ From The Same
Sheet of Replant Music (2005)
- I've Got the Corny Stand
Establishment Blues... (2005)
Stand uniformity, planter maintenance
- Variable Emergence Due
to Variable Seedbed Moisture (2007)
- Take Time to Evaluate Corn
Stand Establishment (2006)
- Planter Maintenance: Less
Down Time, More Yield (2004)
- No-Till Corn Planting Trash
Talk (2003)
- Diagnosing Stand Establishment
Problems in Corn (2002)
- End-of-Season Planter
Care (2002)
- Considerations for the Day
of Planting (2002)
- When Good Corn Fields Turn
Bad (2001)
- Keep an Eye on Those Corn Plants!
(1998)
- A Recipe for Lousy-Yielding Corn
(1998)
- Planter Issues Relative to Unusually
Small Seed Corn (1998)
Tillage issues
- Seed Furrow Erosion in
No-Till Corn (2003)
- No-Till Corn Planting Trash
Talk (2003)
- No-Till Corn Stand Establishment. I. Secrets
for Success (1996)
- No-Till Corn Stand Establishment. II.
What's Unique About No-Till? (1996)
- No-Till Corn Stand Establishment. III.
Planting Date and Hybrid Selection (1996)
- No-Till Corn Stand Establishment. IV.
Planter Gadgets (1996)
- Benefits of Cultivating Corn (1996)
Translucent kernel syndrome
- Translucent Kernel Syndrome
(1999)
- Photo Gallery: Translucent Kernel Syndrome
(1999)
Wheat Issues
- Late Nitrogen Applications
on Wheat (2008)
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