Purdue Agronomy On-Line!
Created 2/13/98

Understanding Factors That Limit Yield in Corn

A presentation of issues relevant to the
potential for improving yields with Precision Farming technology.
 
For more corn-related information on the Web, check out the
Corn Growers Guidebook at the URL:
http://www.agry.purdue.edu/ext/corn/

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Table of Contents

Understanding Factors That Limit Yield in Corn

Precision Farming: Excitement!

Precision Farming: Tools

Success With PF Technology

Yield Limiting Factors (YLFs)

Major Categories of Yield-Limiting Factors

YLF Categories: Weather Stress...

Bragging Rights For Top U.S. Corn Yields?

Bragging Rights For Top U.S. Corn Yields, 1997

Bragging Rights For Top U.S. Corn Yields, 1997

Basis for High Corn Yields?

YLF Categories: Pest Pressures...

YLF Categories: Soil Characteristics...

E.B. White, farmer-poet-writer...

YLF Categories: Management Practices...

Cultural Practices...

Which YLFs Are Most Important?

‘Perennial’ Yield Limiting Factors

‘Sporadic’ Yield Limiting Factors

Identifying YLFs Is Difficult

Identifying YLFs Is Difficult

Identifying YLFs Is Difficult

Field Observations Crop Diagnostics

Field Observations Crop Diagnostics

Field Observations Crop Diagnostics

Examples of Field Observations: Planting to Emergence...

Examples of Field Observations: Emergence to Knee-High...

Examples of Field Observations: Knee-High to Tasseling...

Examples of Field Observations: Tasseling Silking...

Examples of Field Observations: Tasseling to Maturity...

Examples of Field Observations: Maturity to Harvest...

Examples of Field Observations: Harvest...

Beware of the Hazards of Correlations

Ex. of Hazardous Correlation

Real-Life Example #1

Real-Life Example #2

Without Season-Long Monitoring, Yield Map Interpretation Can Be Very Difficult

My Advice?

Precision Farming: Challenge

Precision Farming: Challenge

Let’s Remember...

Author: R.L. (Bob) Nielsen
Agronomy Department
Purdue University
West Lafayette, IN 47907-1150

Email: rnielsen@purdue.edu

Home Page: www.agry.purdue.edu/ext/corn/rln-bio.htm

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