Life Sciences Commons^™

25 Rules Of Thumb For Field Crops, Matt Yost, Niel Allen, Grant Cardon, Earl Creech, Ryan Larsen, Rhonda Miller, Mark Nelson, Claudia Nischwitz, Matthew Palmer, Steven Price, Ricardo Ramirez, Corey Ransom, Benjamin Scow, Randall Violett

All Current Publications

This article is not a comprehensive list of the practices farmers need to be successful in their operations, but it represents an attempt to capture 25 common tips or “rules” from a wide range of Extension experts throughout Utah, from seedbed preparation, to harvesting guidelines.

Lessons To Be Learned In Adoption Of Autonomous Equipment For Field Crops, James Lowenberg-Deboer, Karl Behrendt, Melf-Hinrich Ehlers, Carl R. Dillon, Andreas Gabriel, Iona Yuelu Huang, Ian Kumwenda, Tyler Mark, Andreas Meyer-Aurich, Gabor Milics, Kehinde Oluseyi Olagunju, Søren Marcus Pedersen, Jordan M. Shockley, David Rose

Agricultural Economics Faculty Publications

Autonomous equipment for crop production is on the verge of technical and economic feasibility, but government regulation may slow its adoption. Key regulatory issues include requirements for on-site human supervision, liability for autonomous machine error, and intellectual property in robotic learning. As an example of the impact of regulation on the economic benefits of autonomous crop equipment, analysis from the United Kingdom suggests that requiring 100% on-site human supervision almost wipes out the economic benefits of autonomous crop equipment for small and medium farms and increases the economies-of-scale advantage of larger farms.

Contemporary Challenges And Opportunities For The Management Of Bird Damage At Field Crop Establishment, Christophe Sausse, Alice Baux, Michel Bertrand, Elsa Bonnaud, Sonia Canavelli, Alexandra Destrez, Page E. Klug, Lourdes Olivera, Ethel Rodriguez, Guilllermo Tellechea, Sebastian Zuil

USDA Wildlife Services: Staff Publications

Bird damage, from sowing to crop establishment, is an important issue for farmers in many parts of the world. However, reliable and cost-effective solutions remain elusive because management tools and research on the subject are limited. The spatial variability of damage across landscapes and the adaptative behaviour of birds create further challenges. Additionally, the issue must be tackled at the landscape scale and involve a variety of stakeholders with conflicting interests and objectives. We summarize some of the challenges and opportunities identified to face these difficulties and address four major research directions for operational solutions including 1) crop damage assessment, …

Sp645 When Are Secondary Or Micronutrients Needed For Tennessee Farm Fields?, Hubert J. Savoy Jr.

Field & Commercial Crops

No abstract provided.

Pb1608 Soybean Production In Tennessee, Wayne T. Flinchum, Michael J. Buschermohle, H. Paul Denton, Charles M. Farmer, Delton C. Gerloff, Samuel G. Mcneil, Melvin A. Newman, G. Neil Rhodes Jr., Ronnie W. Seward, James B. Wills Jr.

Field & Commercial Crops

No abstract provided.

Pb1061 Soil Testing, Hubert J. Savoy, Deborah K. Joines

Field & Commercial Crops

No abstract provided.

Pb1768 2013 Insect Control Recommendations For Field Crops, Scott Stewart, Angela Mcclure

Field & Commercial Crops

Provides insect control recommendations that include cultural practices, variety selection, biological control and use of insecticides to control/manage insect pest populations in cotton, soybeans, field corn, sorghum and wheat.

Sp618 Corn And Wheat Silage Tests In Tennessee 2012, Fred L. Allen, Richard D. Johnson

Field & Commercial Crops

No abstract provided.

Pb1580-2013 Weed Control Manual For Tennessee, Larry Steckel, G. Neil Rhodes Jr., Chris Main, Barry Sims, Robert M. Hayes, Angela Mcclure, Thomas C. Mueller, Blake Brown

Field & Commercial Crops

No abstract provided.

Rr13-02 Corn Grain Hybrid Tests In Tennessee 2012, Fred L. Allen, Richard D. Johnson, Robert C. Williams Jr., Angela Thompson Mcclure

Field & Commercial Crops

No abstract provided.

Rr12-03 Soybean Variety Performance Tests In Tennessee 2011, Fred Allen, Richard Johnson, Robert C. Williams Jr., Angela Thompson Mcclure, Melvin Newman, Pat Donald

Field & Commercial Crops

No abstract provided.

Sp740-B Good Agricultural Practices Series: Interpreting Water Quality Results, Susannah Amundson, Grant Mccarty, Faith Critzer, David Lockwood, Annette Wszelaki, Elizabeth Bihn

Commercial Horticulture

No abstract provided.

W288 Cotton Production In Tennessee, Christopher L. Main

Field & Commercial Crops

No abstract provided.

W287 Cotton Growth And Development, Christopher L. Main

Field & Commercial Crops

No abstract provided.

Pb1801 Weed Management In Pastures And Hay Crops, G. Neil Rhodes Jr., William P. Phillips Jr.

Field & Commercial Crops

No abstract provided.

Sp618-2011 Corn, Sweet Sorghum And Small Grain Silage Tests In Tennessee 2011, Fred L. Allen, Richard Johnson, Virginia Sykes

Field & Commercial Crops

No abstract provided.

Rr12-02 Corn Grain Hybrid Tests In Tennessee 2011, Fred L. Allen, Richard D. Johnson, Robert C. Williams Jr., Angela Thompson Mcclure

Field & Commercial Crops

No abstract provided.

Economic Impacts Of Drought On Kentucky Corn, Hay, And Soybeans, Kortney E. Craft

Masters Theses & Specialist Projects

Understanding climatic impacts is important if we are to comprehend the relationship between climate and society. Weather phenomena can have environmental, economical, and social impacts. Drought is the natural hazard that affects people the most. It is also the most complex and least understood. There is no one universally accepted definition for drought which makes its examination difficult. Droughts’ duration is also difficult to determine because it has no clearly defined onset and end. Also, drought varies both geographically and temporally making uniform drought monitoring difficult. Since drought is difficult to monitor and access, drought impacts are often poorly documented. …

Discriminating Microsatellites From Macrophomina Phaseolina And Their Potential Association To Biological Functions, R. S. Arias, J. D. Ray, A. Mengistu, B. E. Scheffler

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

One hundred and eighty-two microsatellites or simple-sequence-repeat (SSR) markers for Macrophomina phaseolina were developed. These were tested on 24 isolates of M. phaseolina obtained from seven plant species, and the genetic variation of isolates was studied in relation to potential biological processes that could be affected in this fungus. A total of 120 SSR markers were polymorphic, amplifying >90% of the 24 isolates tested. Thirty percent of the markers showed multiple alleles on individual samples. A large number of markers showed unique alleles in isolates collected from pumpkin and snap bean. DNA sequences corresponding to 43 markers had significant hits …

Nf05-652 Soybean Rust Fungicide Use Guidelines For Nebraska, Loren J. Giesler, John A. Wilson, Jennifer M. Rees

University of Nebraska-Lincoln Extension: Historical Materials

While the impact that soybean rust will have on Nebraska's soybean crop is unknown, producers should be prepared to manage the disease. When soybean rust occurs or is expected to occur shortly in Nebraska, growers can use the decision-aid flow chart on page 2 of this NebFact to determine whether to treat and, if treating, which class of fungicide (chlorothalonil, strobilurin, or triazole) to use.

Nf05-634 Fungicides To Manage Soybean Rust: What Are The Product Differences?, Loren J. Giesler, Thomas J. Weissling

University of Nebraska-Lincoln Extension: Historical Materials

If Nebraska soybean producers find themselves needing to apply a fungicide for soybean rust this year, it will be important to choose an effective product based on the stage of disease development in the specific field. It will be important for all producers and crop managers to be aware of where soybean rust is being detected to pursue a treatment that provides the maximum return on investment for any fungicides being applied.

This NebFact discusses the fungicides available for Nebraska soybean fields and resistance management issues.

Nf05-633 Soybean Rust: How Great Is The Threat For Nebraska?, Loren J. Giesler

University of Nebraska-Lincoln Extension: Historical Materials

Soybean rust is a serious foliar disease that has caused significant crop losses in other parts of the world. It was first detected in the United States in November 2004 and has since been identified in several southeastern states. The fact that wind-borne spores principally spread soybean rust suggests it will be a seasonal problem in Nebraska.

This NebFact discusses the symptoms, life cycle, host range, potential impact on soybean production, and management of soybean rust in the state of Nebraska.

Nf04-614 Management Program For Powdery Mildew Of Wheat (Revised August 2005), John E. Watkins

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact, Wheat Disease Fact Sheet No. 7, discusses the management program for powdery mildew of wheat. It covers the cause and occurrence, key symptoms, cultural management practices, fungicide treatment programs with a table listing the fungicdes registered for foliar diseases of wheat, and application.

Nf04-599 Soybean Aphid Management In Nebraska, Thomas E. Hunt

University of Nebraska-Lincoln Extension: Historical Materials

The soybean aphid (Aphis glycines) is Nebraska's newest soybean insect pests, arriving in the United States in 2000 and in Nebraska in 2002. Yield losses of over 20 percent have been documented in some northeast Nebraska fields.

This NebFact covers the description, initial observations, life cycle and injury, and management of the soybean aphid in Nebraska.

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

University of Nebraska-Lincoln Extension: Historical Materials

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™.

G03-1513 Understanding Fungal (Mold) Toxins (Mycotoxins), Michael P. Carlson, Steveb M. Ensley

University of Nebraska-Lincoln Extension: Historical Materials

Mycotoxins are chemicals produced by fungi (molds) under certain conditions. They are not essential for fungal growth or reproduction, and are toxic to animals or humans.

This NebGuide briefly discusses mycotoxins commonly encountered in grains and feeds used in Nebraska and the mycotoxicoses they cause. Mycotoxin sources and clinical signs, lesions, diagnostic aids and treatment for each mycotoxicosis are listed.

G03-1504 Lime Use For Soil Acidity Management, Martha Mamo, Charles S. Wortmann, Charles A. Shapiro

University of Nebraska-Lincoln Extension: Historical Materials

Soil acidity can reduce crop production by directly affecting roots and changing the availability of essential nutrients and toxic elements. Liming can neutralize soil acidity, but several factors can affect the economic benefits of liming. With continuous cropping, soil pH can decrease (i.e., increase in acidity) because of various factors, including crop removal and leaching of basic cations, application of ammoniabased nitrogen fertilizers, and organic matter decomposition. Adding lime or other materials can raise soil pH to the ideal range for crop production, create an environment for a healthy function of microbes, and increase the levels of calcium or magnesium …

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

University of Nebraska-Lincoln Extension: Historical Materials

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.

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

University of Nebraska-Lincoln Extension: Historical Materials

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.

Nf03-587 Management Program To Prevent Smut Diseases Of Wheat (Revised September 2005), John E. Watkins

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact, Wheat Disease Fact Sheet No. 6, discusses the management program to prevent smut diseases of wheat. It covers the cause and occurrence, key symptoms, cultural management practices, fungicide seed treatment program, economic significance, and applications for controlling the smut diseases.