Open Access. Powered by Scholars. Published by Universities.®

Education Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 30 of 149

Full-Text Articles in Education

Choosing A Bt Transgenic Corn Hybrid, R. J. Wright, Thomas E. Hunt, J. F. Witkowski, Blair Siegfried, John E. Foster Dec 2015

Choosing A Bt Transgenic Corn Hybrid, R. J. Wright, Thomas E. Hunt, J. F. Witkowski, Blair Siegfried, John E. Foster

John E. Foster

Describes traits of various Bt corn hybrids and factors to consider when selecting and using these hybrids.


Emerging Issues In The U.S. Corn Belt: Infection Of Corn By Clavibacter Michiganensis Subsp. Nebraskensis And Use Of Foliar Fungicides To Protect Yield, Salome Mallowa Obura Jan 2015

Emerging Issues In The U.S. Corn Belt: Infection Of Corn By Clavibacter Michiganensis Subsp. Nebraskensis And Use Of Foliar Fungicides To Protect Yield, Salome Mallowa Obura

Graduate Theses and Dissertations

Currently two major issues pertaining to disease management in corn production in the US Corn Belt are the spread of Goss's wilt and leaf blight caused by Clavibacter michiganensis subsp. nebraskensis (Cmn), and the use of foliar fungicides on corn for `plant health' benefits. This dissertation presents data regarding infection of corn by Cmn, and fungicide effects on disease management and yield.

Greenhouse and laboratory research was undertaken to determine if infection of corn by Cmn may occur without severe wounding, such as that caused by hail, sand blasting or wind damage. Corn plants with no obvious wounding were ...


Ec13-872 Nebraska 2013 Crop Budgets, Robert N. Klein, Roger K. Wilson Jan 2013

Ec13-872 Nebraska 2013 Crop Budgets, Robert N. Klein, Roger K. Wilson

Historical Materials from University of Nebraska-Lincoln Extension

This publication contains crop production budgets for 13 crops and 51 cropping systems, as well as tables of power, machinery, labor, and input costs used to develop these budgets. Each budget consists of five sections:

  • Heading
  • List of representative field operations
  • List of materials and services used
  • Operations and interest tabulations
  • Overhead costs including real estate taxes and opportunity­ charges

The budgets are presented in a worksheet format with a “Your Estimate’’ column for recording cost modifications.


Nf92-69 Selected Vegetable Cultivars For Nebraska, Susan Schoneweis, Laurie Hodges Sep 2012

Nf92-69 Selected Vegetable Cultivars For Nebraska, Susan Schoneweis, Laurie Hodges

Laurie Hodges

This NebFact provides information about cultivars of garden vegetables available to grow in Nebraska.


Nf92-53 European Corn Borer Injury To Peppers, Frederick P. Baxendale, Laurie Hodges Sep 2012

Nf92-53 European Corn Borer Injury To Peppers, Frederick P. Baxendale, Laurie Hodges

Laurie Hodges

This NebFact discusses European corn borer injury to peppers.


Ec12-101 Spring Seed Guide 2012, Teshome H. Regassa, Greg R. Kruger, Stevan Z. Knezevic, Charles A. Shapiro, Bruce Anderson, Dipak K. Santra, Jim Krall Jan 2012

Ec12-101 Spring Seed Guide 2012, Teshome H. Regassa, Greg R. Kruger, Stevan Z. Knezevic, Charles A. Shapiro, Bruce Anderson, Dipak K. Santra, Jim Krall

Historical Materials from University of Nebraska-Lincoln Extension

Welcome to the 2012 Spring Seed Guide. Corn, soybean, sorghum, sunflower, and alfalfa are included in this seed guide. This circular is a progress report of variety trials conducted by personnel of the Agronomy Department, West Central, and Northeast Extension Centers, and their associated agricultural laboratories and the associates of the University of Wyoming at SAREC.


Ec11-101 Spring Seed Guide, Teshome H. Regassa, Greg R. Kruger, Stevan Z. Knezevic, Charles A. Shapiro, Bruce Anderson, Dipak K. Santra, Jim Krall Jan 2011

Ec11-101 Spring Seed Guide, Teshome H. Regassa, Greg R. Kruger, Stevan Z. Knezevic, Charles A. Shapiro, Bruce Anderson, Dipak K. Santra, Jim Krall

Historical Materials from University of Nebraska-Lincoln Extension

Welcome to the 2011 Spring Seed Guide. Corn, soybean, sorghum, and alfalfa are included in this seed guide. This circular is a progress report of variety trials conducted by personnel of the Agronomy Department, West Central, and Northeast Extension Centers, and their associated agricultural laboratories and the associates of the University of Wyoming at SAREC.


G08-1680 Rust Diseases Of Corn In Nebraska, Tamra A. Jackson Jan 2008

G08-1680 Rust Diseases Of Corn In Nebraska, Tamra A. Jackson

Historical Materials from University of Nebraska-Lincoln Extension

Two rust diseases of corn occur in Nebraska. Common rust of corn occurs every year to some extent, and is caused by the fungus Puccinia sorghi. The other rust disease, southern rust, is caused by Puccinia polysora and occurs less frequently in Nebraska. Identification and management of these rust diseases of corn are discussed in this 2008 NebGuide.


Ec07-101 2007 Spring Seed Guide, Lenis Alton Nelson, Bruce Anderson, Robert N. Klein, Richard B. Ferguson, David Baltensperger, Charles A. Shapiro, Stevan Z. Knezevic, James Krall Jan 2007

Ec07-101 2007 Spring Seed Guide, Lenis Alton Nelson, Bruce Anderson, Robert N. Klein, Richard B. Ferguson, David Baltensperger, Charles A. Shapiro, Stevan Z. Knezevic, James Krall

Historical Materials from University of Nebraska-Lincoln Extension

This circular is a progress report of variety and hybrid performance tests conducted by the Agronomy/Horticulture Department, the Northeast, West Central and Panhandle Research and Extension Centers, the South Central Agricultural Laboratory as part of the University of Nebraska and University of Wyoming at Torrington. Conduct of experiments and publication of results is a joint effort of the Agricultural Research Division and the Cooperative Extension Service. The following pages include the results of our variety testing programs for many crop species throughtout the state. We hope you find this information useful as you make hybrid and variety decisions for ...


G07-1782 First Generation European Corn Borer Scouting And Treatment Decisions, R. J. Wright, Robert J. Wright Jan 2007

G07-1782 First Generation European Corn Borer Scouting And Treatment Decisions, R. J. Wright, Robert J. Wright

Historical Materials from University of Nebraska-Lincoln Extension

The decision to treat for European corn borer is complex and affected by many variables such as weather, plant maturity, borer survival and development, anticipated corn prices, insecticide efficacy, and costs versus anticipated returns. This 2007 NebGuide discusses the factors growers need to consider when assessing the need for control of first generation European corn borers in non-Bt corn.


G07-1153 Corn Cutworms, Robert J. Wright, Thomas E. Hunt, Keith J. Jarvi Jan 2007

G07-1153 Corn Cutworms, Robert J. Wright, Thomas E. Hunt, Keith J. Jarvi

Historical Materials from University of Nebraska-Lincoln Extension

This 2007 NebGuide discusses cutworms in corn -- identification, conditions that favor infestations, damage they cause and control.


Ec06-155 Nutrient Management For Agronomic Crops In Nebraska, Richard B. Ferguson Jan 2006

Ec06-155 Nutrient Management For Agronomic Crops In Nebraska, Richard B. Ferguson

Historical Materials from University of Nebraska-Lincoln Extension

Nebraska is blessed with fertile soil and vast supplies of groundwater which combine to create an environment well-suited to the production of corn, wheat, grain sorghum, alfalfa, edible beans, and other agronomic crops used for human or animal consumption.

This manual is a guide to nutrient use from all sources for the production of Nebraska's major agronomic crops: corn, winter wheat, grain sorghum, oats, alfalfa, dry edible beans, soybean, sugar beets, popcorn, sunflower, millet, potatoes, and cool and warm season grasses for hay and pasture. Part I of the manual contains information focusing on basic principles of soil fertility ...


Ec05-130 Guide For Weed Management In Nebraska, Roch E. Gaussoin, Brady F. Kappler, Robert N. Klein, Stevan Z. Knezevic, Drew J. Lyon, Alex Martin, Fred Roeth, Gail A. Wicks, Robert G. Wilson, Robert A. Masters, Patrick J. Shea, Larry D. Schulze Jan 2005

Ec05-130 Guide For Weed Management In Nebraska, Roch E. Gaussoin, Brady F. Kappler, Robert N. Klein, Stevan Z. Knezevic, Drew J. Lyon, Alex Martin, Fred Roeth, Gail A. Wicks, Robert G. Wilson, Robert A. Masters, Patrick J. Shea, Larry D. Schulze

Historical Materials from University of Nebraska-Lincoln Extension

One of the major thrusts of all University of Nebraska weed science faculty is the Guide for Weed Management in Nebraska. This guide is not just the work of one or two people, rather it is a joint effort of all the authors to produce a comprehensive, information-packed resource. Each weed science faculty member is responsible for particular sections of the guide. The process of reviewing the current content, checking labels and research data and updating the content can be an extensive process. Each year new herbicide active ingredients and trade names are introduced and figuring out what a herbicide ...


G05-1579 Using Modified Atmometers (EtGage®) For Irrigation Management, Suat Irmak, Jose O, Payero, Derrel L. Martin Jan 2005

G05-1579 Using Modified Atmometers (EtGage®) For Irrigation Management, Suat Irmak, Jose O, Payero, Derrel L. Martin

Historical Materials from University of Nebraska-Lincoln Extension

This NebGuide describes the atmometer (evapotranspiration gage) and explains how it can be used for irrigation scheduling. Examlpes are provided to show how information collected with an atmometer can be used to estimate crop water use for corn and soybean.


Ec05-101 Spring Seed Guide, 2006, Lenis Alton Nelson, Bruce Anderson, Robert N. Klein, Roger Wesley Elmore, David D. Baltensperger, Charles A. Shapiro, Stevan Z. Knezevic, James Krall Jan 2005

Ec05-101 Spring Seed Guide, 2006, Lenis Alton Nelson, Bruce Anderson, Robert N. Klein, Roger Wesley Elmore, David D. Baltensperger, Charles A. Shapiro, Stevan Z. Knezevic, James Krall

Historical Materials from University of Nebraska-Lincoln Extension

This circular is a progress report of variety and hybrid performance tests conducted by the Agronomy/Horticulture Department, the Northeast, West Central, and Panhandle Research and Extension Centers, the South Central Agricultural Laboratory as part of the University of Nebraska and University of Wyoming at Torrington. Conduct of experiments and publication of results is a joint effort of the Agricultural Research Division and the Cooperative Extension Service.


Ec05-883 Crop And Livestock Prices For Nebraska Producers, 1960-2005, Darrell R. Mark, Dillon Feuz, Brad Heinrichs Jan 2005

Ec05-883 Crop And Livestock Prices For Nebraska Producers, 1960-2005, Darrell R. Mark, Dillon Feuz, Brad Heinrichs

Historical Materials from University of Nebraska-Lincoln Extension

This report contains historical price data for the major crops and livestock commodities produced in Nebraska. Prices received by producers are reported for 1960-2005 for most of the commodities.

The data was compiled from Nebraska Agricultural Statistics Service and Agricultural Prices, National Agricultural Statistics Service, USDA; Oil Crops Situation and Outlook, Economic Research Service, USDA; Cotton and Wool Outlook, Economic Research Service, USDA; and Livestock and Grain Market News, Agricultural Marketing Service, USDA. Sources of prices for each commodity are indicated on the tables.


Ec05-1573 Corn Insects Ii, Robert J. Wright, Terry A. Devries, James A. Kalisch Jan 2005

Ec05-1573 Corn Insects Ii, Robert J. Wright, Terry A. Devries, James A. Kalisch

Historical Materials from University of Nebraska-Lincoln Extension

This two-page, 4-color extension circular covers information on Nebraska corn insects identification and management. These include: Western corn rootworm, Northern corn rootworm, seed corn maggot, wireworm, Southern corn leaf beetle, corn leaf aphid, twospotted spider mite, Banks grass mite, corn flea beetle, white grub, annual grub, three year grub, seed corn beetle, and chinch bug.


Ec05-1572 Corn Insects I, Robert J. Wright, Terry A. Devries, James A. Kalisch Jan 2005

Ec05-1572 Corn Insects I, Robert J. Wright, Terry A. Devries, James A. Kalisch

Historical Materials from University of Nebraska-Lincoln Extension

This two-page, 4-color extension circular covers the identification and management of Nebraska corn insects. These include: European corn borer, Western bean cutworm, corn earworm, armyworm, fall armyworm, common stalk borer, and black cutworm.


Nf04-594 Resistanct Management For Yieldgard Rootworm™ Bt Corn, Robert J. Wright, Thomas E. Hunt Jan 2004

Nf04-594 Resistanct Management For Yieldgard Rootworm™ Bt Corn, Robert J. Wright, Thomas E. Hunt

Historical Materials from University of Nebraska-Lincoln Extension

In 2003, the U.S. Environmental Protection Agency and Monsanto announced the registration of YieldGard Rootworm™ corn containing event MON863. These hybrids express a protein in the roots from the soil bacterium, Bacillus thuringiensis (Bt) that is toxic to larval corn rootworms.

This NebFact discusses management requirements, refuge considerations, within-field configurations when using YieldGard Rootworm™.


G03-1521 Using Corn Hybrid Yield Data To Improve Selection Of Rapidly Changing Hybrids, Robert N. Klein, Lenis Alton Nelson, Roger Wesley Elmore Jan 2003

G03-1521 Using Corn Hybrid Yield Data To Improve Selection Of Rapidly Changing Hybrids, Robert N. Klein, Lenis Alton Nelson, Roger Wesley Elmore

Historical Materials from University of Nebraska-Lincoln Extension

How often should you change hybrids? One might conclude that to maximize corn yield, hybrids must be constantly replaced. Choosing the proper hybrid can greatly enhance crop production profitability. This NebGuide illustrates how to use corn hybrid test data and adjust it to your farm when selecting seed.


Nf03-571 Aspergillus Flavus And Aflatoxins In Corn, Jim Stack, Michael Carlson Jan 2003

Nf03-571 Aspergillus Flavus And Aflatoxins In Corn, Jim Stack, Michael Carlson

Historical Materials from University of Nebraska-Lincoln Extension

The severe weather conditions of the 2002 growing season resulted in an increase in the incidence and severity of aflatoxin contamination of both food grade and feed grade corn in Nebraska.

The mycotoxin called aflatoxin is produced by the grain mold Aspergillus flavus. Not all isolates of A. flavus produced aflatoxin and isolates that are capable of producing aflatoxin do not always synthesize the toxin. Many factors including environmental conditions and host suscepbitility, determine the incidence and severity of grain mold and subsequent mycotoxin contamination.

This NebFact discusses the cause and occurrence of aflatoxin in corn; the effects it has ...


Nf03-570 Fumonisins In Corn, Jim Stack, Michael Carlson Jan 2003

Nf03-570 Fumonisins In Corn, Jim Stack, Michael Carlson

Historical Materials from University of Nebraska-Lincoln Extension

During the past two years, millers have rejected some Nebraska food grade corn because it was contaminated with the mycotoxin fumonisin. Most of the contaminated samples and the highest levels of contamination were detected in corn from counties in the eastern half of Nebraska.

Fumonisins are mycotoxins produced by the grain molds Fusarium verticillioides and Fusarium proliferatum. These fungi are commonly found in corn throughout the United States.

This NebFact discusses the cause and occurrence of fumonisin in corn; the effects it has on plants, animals and humans; and management options to minimize fumonisin contamination.


G03-1528 Recommended Seeding Rates And Hybrid Selection For Rainfed (Dryland) Corn In Nebraska, Robert N. Klein, Drew J. Lyon Jan 2003

G03-1528 Recommended Seeding Rates And Hybrid Selection For Rainfed (Dryland) Corn In Nebraska, Robert N. Klein, Drew J. Lyon

Historical Materials from University of Nebraska-Lincoln Extension

Differences in climate between Lincoln and Scottsbluff are as great as from Lincoln to the east coast of the United States. These climatic differences across the state greatly affect recommended seeding rates for rainfed corn in Nebraska. This NebGuide provides information useful in assessing accumulated growing degree days, soil type and field conditions, average precipitation, and the field's microclimate when determining seeding rate for dryland corn.


Ec03-101 Nebraska Seed Guide, 2004, Lenis Alton Nelson, Robert N. Klein, Roger Wesley Elmore, David D. Baltensperger, Charles A. Shapiro, Stevan Z. Knezevic, James Krall Jan 2003

Ec03-101 Nebraska Seed Guide, 2004, Lenis Alton Nelson, Robert N. Klein, Roger Wesley Elmore, David D. Baltensperger, Charles A. Shapiro, Stevan Z. Knezevic, James Krall

Historical Materials from University of Nebraska-Lincoln Extension

This circular is a progress report of corn hybrid performance tests conducted by the Agronomy/Horticulture Department and the Northeast, South Central, West Central and Panhandle Research and Extension Centers of Nebraska and University of Wyoming at Torrington. Conduct of experiments and publication of results is a joint effort of the Agricultural Research Division and the Cooperative Extension Service.


G03-1521 Using Corn Hybrid Yield Data To Improve Selection Of Rapidly Changing Hybrids, Robert N. Klein, Lenis Alton Nelson, Roger Wesley Elmore Jan 2003

G03-1521 Using Corn Hybrid Yield Data To Improve Selection Of Rapidly Changing Hybrids, Robert N. Klein, Lenis Alton Nelson, Roger Wesley Elmore

Historical Materials from University of Nebraska-Lincoln Extension

Choosing the proper hybrid can greatly enhance crop production profitability. This NebGuide illustrates how to use corn hybrid test data and adjust it to your farm when selecting seed. How often should you change hybrids? An Auburn University study compared the top corn hybrids from a 3-year regional trial (114 bushel average) with the top hybrids from the previous year's test (119 bushel average). Since the yields went from 114 to 119 bushels - a 5 bushel increase - using data from 11 locations and 8 years, should we expect twice that difference - a 10 bushel increase - with yields of 228 ...


Ec03-1888 Ear Rots And Grain Molds Of Corn, James P. Stack, Loren J. Giesler, Robert M. Harveson, John E. Watkins, Jennifer L. Chaky Jan 2003

Ec03-1888 Ear Rots And Grain Molds Of Corn, James P. Stack, Loren J. Giesler, Robert M. Harveson, John E. Watkins, Jennifer L. Chaky

Historical Materials from University of Nebraska-Lincoln Extension

This two-page, 4-color extension circular covers the ear rots and grain molds of corn in Nebraska. The diseases listed include: grain molds, Gibberella ear rot, Fusarium kernel or ear rot, red streak, Penicillium ear rot, Aspergillus ear or kernel rot, blue eye, Diplodia ear rot, and Nigrospora ear rot.


Ec03-883 Crop And Livestock Prices For Nebraska Producers, 1960-2003, Darrell R. Mark, Dillon Feuz, Roger Selley, Tina N. Barrett Jan 2003

Ec03-883 Crop And Livestock Prices For Nebraska Producers, 1960-2003, Darrell R. Mark, Dillon Feuz, Roger Selley, Tina N. Barrett

Historical Materials from University of Nebraska-Lincoln Extension

This report contains historical price data for the major crops and livestock commodities produced in Nebraska. Prices received by producers are reported for 1960-2002 for most of the commodities.

The data was compiled from Nebraska Agricultural Statistics Services and Agricultural Prices, National Agricultural Statistics Service, USDA; Oil Crops Situation and Outlook, Economic Research Service, USDA; Cotton and Wool Outlook, Economic Research Service, USDA; and Livestock and Grain Market News, Agricultural Marketing Service, USDA. Sources of prices for each commodity are indicated on the tables.


Nf571 Aspergillus Flavus And Aflatoxins In Corn, Jim Stack, Mike Carlson Jan 2003

Nf571 Aspergillus Flavus And Aflatoxins In Corn, Jim Stack, Mike Carlson

Historical Materials from University of Nebraska-Lincoln Extension

The severe weather conditions of the 2002 growing season resulted in an increase in the incidence and severity of aflatoxin contamination of both food grade and feed grade corn in Nebraska.


Fumonisins In Corn, Jim Stack, Mike Carlson Jan 2003

Fumonisins In Corn, Jim Stack, Mike Carlson

Historical Materials from University of Nebraska-Lincoln Extension

This NebFact discusses the causes and occurrences of fumonisin in corn.


Ec02-173 Spotted And Diffuse Knapweed, Neil L. Heckman, Ryan M. Goss, Roch E. Gaussoin, Stevan Z. Knezevic, John L. Lindquist Jan 2002

Ec02-173 Spotted And Diffuse Knapweed, Neil L. Heckman, Ryan M. Goss, Roch E. Gaussoin, Stevan Z. Knezevic, John L. Lindquist

Historical Materials from University of Nebraska-Lincoln Extension

Spotted knapweed (Centaure amaculosa Lam. = C. biebersteinii DC.) and diffuse knapweed (C.diffusa Lam.) are two of Nebraska’s seven noxious weeds. They are also noxious in at least 17 other states. These are closely related species that are well adapted to a variety of habitats including open forests, rangelands and pastures, Conservation Reserve Program lands, roadsides, and ditch banks. Centaurea is a large genus of over 400 species, 32 of which are common weeds of the United States and several of which [e.g., yellowstar thistle, C. solstitalis L, and Russian knapweed, C. repens L. =Acroptilon repens (L.) DC ...