Education Commons^™

G05-1570 How To Spray A Field To Prevent Overlap And Reduce Drift Injury, Robert N. Klein

University of Nebraska-Lincoln Extension: Historical Materials

Proper spraying techniques for various situations are outlined and illustrated. A table shows how changing the sprayer speed can affect pressure on sprayers with rate controllers. The method used to spray a field can affect pest control and potential crop injury to the targeted crop and adjacent crops. Start spraying a field on the side where the drift potential is greatest when wind speeds are low or blowing away from the susceptible area. Sometimes an applicator may need to return to a site later to spray when weather conditions are more favorable and would not cause spray drift. These factors …

Ec05-773 Recommendations For Harvesting Dry Edible Beans With The John Deere Sts Series Combine, John A. Smith

University of Nebraska-Lincoln Extension: Historical Materials

Maximum combine performance — characterized by low mechanical seed damage, low field loss, and high field capacity — requires optimization of combine equipment, combine adjustments, and field operating practices. This Extension Circular provides information to maximize performance of the John Deere STS series combine in dry edible beans in typical western Nebraska field conditions. These recommendations are presented in three sections, covering initial to more advanced assessments and adjustments.

Nf02-518 Management Of Phytophthora Diseases Of Soybeans, Loren J. Giesler, Jane A. Christensen, Christopher M. Zwiener

University of Nebraska-Lincoln Extension: Historical Materials

Phythophthora diseases of soybean, caused by Phytophthora sojae, are present wherever soybeans are grown in Nebraska. The pathogen survives primarily as "resting" spores in the soil or in association with infested crop debris. Symptoms associated with Phytophthora sojae, infections include seed rots, pre- and post-emergence dampin goff of seedlings and stem rot of plants at various growth stages.

Knowledge of the races present in the state and how varieties with different resistance genes have performed in a grower's field is critical to variety selection for maximum profitability.

G02-1460 Fertilizing Winter Wheat I: Nitrogen, Potassium, And Micronutrients, Jurg M. Blumenthal, Donald H. Sander

University of Nebraska-Lincoln Extension: Historical Materials

Soil testing, recommended rates, and timing for fertilizing winter wheat with nitrogen, potassium, and micronutrients.

Management practices which provide an adequate, but not excessive, supply of plant nutrients are essential for top yields of high quality winter wheat in the High Plains.

Ec01-157 Precision Agriculture: Untangling The Gps Data String, Viacheslav I. Adamchuk

University of Nebraska-Lincoln Extension: Historical Materials

Most people associate precision farming or site-specific management with the global positioning system (GPS). It is used to locate the antenna of aGPS receiver on Earth. GPS provides the opportunity to record a set of geographic coordinates that specify a particular field location. Therefore, field data collected using GPS technology is georeferenced. Processing of these data is complicated, and software packages designed for precision farming applications have built-in capabilities to interpret the GPS receiver output. However, some simple operations can be performed using standard office software. In this case, it is necessary to know the basics behind GPS data. The …

Nf99-367 Adult Western Corn Rootworm Insecticide Resistance In Nebraska, Robert Wright, Lance Meinke, Blair Siegfried

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses insecticide resistance by adult western corn rootworms in Nebraska.

Ec99-794 On-Farm Storage Of Dry Edible Beans: A Survey Of Nebraka Growers And Storage Guidelines, Thomas L. Holman, John A. Smith

University of Nebraska-Lincoln Extension: Historical Materials

Dry edible bean producers in Nebraska typically deliver their crop to local bean dealers directly from the field, for either immediate sale or storage. Estimates are that less than 5 percent of Nebraska growers store part or all of their dry edible bean harvest in on-farm storage. In contrast, a much higher percentage of dry edible bean producers in other growing regions, particularly North Dakota and Michigan, use on-farm storage in their management plan. In Nebraska, corn and wheat producers are most likely to store all or part of their harvested grain on-farm. Why do so few Nebraska dry edible …

G98-1356 Polyacrylamide – A Method To Reduce Soil Erosion, C. Dean Yonts, Brian Benham

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes polyacrylamide, what it is, how it can be used to reduce soil erosion due to, irrigation and what water management changes must be considered.

Topsoil loss can mean a long-term reduction in soil productivity, crop yield and the life expectancy of downstream storage reservoirs. In the short term, producers are faced with reuse pits to clean or a buildup of soil at the lower ends of fields which must be redistributed. Measures must be taken to reduce or eliminate soil erosion and sustain Nebraska's soil resource.

Nf98-372 Preparation And Use Of Wheatgrass Stands After Crp And Associated Costs/Income — Part I, Patrick E. Reece, Tom Holman, David W. Cook

University of Nebraska-Lincoln Extension: Historical Materials

Wheatgrass species (Agropyron spp.) were seeded on many Conservation Reserve Program (CRP) acres in western Nebraska and adjoining states. These species included crested (A. cristatum, desertorum), intermediate (A. intermedium), pubescent (A. trichophorum) and western (A. smithii) wheatgrasses. Good to excellent stands of wheatgrass can be valuable forages sources for livestock during the spring, summer, or fall, however, accumulation of large amounts of poor quality residual herbage during 10-year CRP contract periods can reduce animal performance.

This NebGuide discusses field evaluations, results, recommended preparations, spring and summer grazing after CRP; and associated …

Ec98-151 Amaranth: Production Manual For The Central United States, Jane Sooby, David D. Baltensperger, Robert Myers, David Brenner, Richard Wilson, Charles Block

University of Nebraska-Lincoln Extension: Historical Materials

Amaranth is a small-seeded grain crop with a dramatic history. Once a staple in the diet of the Aztec Indians, today it is grown throughout the world. In the United States much of the production is small-scale and organic, grown mainly for the natural and health food markets. There also has been steady use of the crop for breakfast cereals, snack foods, and mass-produced multigrain bread products. Amaranth is a broadleaf plant well-adapted to a range of arid and humid environments. As a crop it fits into many dryland rotations, performing well following wheat, proso millet, or other grain crops. …

G96-1362 Soil Temperatures And Spring Planting Dates, Steven J. Meyer, Allen L. Dutcher

University of Nebraska-Lincoln Extension: Historical Materials

Dates on which soil temperatures reach a threshold value are presented as a spring planting guide for agronomic and horticultural producers.

For a seed to germinate it must have good contact with the soil and be placed in a favorable soil environment. A good soil environment is one that has suitable soil temperature, adequate soil moisture, good aeration, and for certain seeds, light. Conditions necessary for germination depend on the species and variety of seed being planted. Alone, none of these factors guarantee germination; rather it is the interaction of these factors that affects seed germination.

In Nebraska, soil moisture …

Ec97-1874 Diseases Affecting Grain And Seed Quality In Wheat, John E. Watkins, Larry J. Prentice

University of Nebraska-Lincoln Extension: Historical Materials

Seed-associated diseases of wheat draw considerable attention because they often reduce both grain quality and yield. In addition ergot and scab diseases bring in a third dimension because toxins associated with each present a potentially serious health risk to humans and animals. Yield losses caused by smuts are roughly equal to the percentage of smutted heads in the field; however, losses from black point, scab or ergot are less easily measured. For example, wheat in the soft dough stage that is infected by one of the scab pathogens may still produce plump, good test weight kernels resulting in minimal yield …

Nf96-249 Nitrogen Application Practices In Nebraska, William Miller, Ray Supalla, Benedict Juliano

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses nitrogen application among Nebraska farmers.

Nf96-248 Factors Considered To Decide Nitrogen Application Rate, William Miller, Ray Supalla, Benedict Juliano

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses nitrogen application among Nebraska farmers.

Ec95-1873 Cultural Practices That Influence Wheat Diseases, John E. Watkins, Robert N. Klein, Paul C. Hay, Lenis Alton Nelson

University of Nebraska-Lincoln Extension: Historical Materials

The health of a wheatcrop is determined well before the crop is planted. It is often the result of subtle factors in the management history of the field, including varieties, seed quality, seedbed, planting date, residue management and post harvest weed control. Wheat health management practices before the crop is planted must limit, as much as possible, the number of production hazards that must be dealt with after planting. Important diseases influenced by cultural practices include crown and root rot, wheat streak mosaic, soil-borne wheat mosaic, barley yellow dwarf, leaf rust, smut diseases, scab, Cephalosporium stripe and tan spot.

Ec95-1560 Use Of Cultural Practices In Crop Insect Pest Management, Robert J. Wright

University of Nebraska-Lincoln Extension: Historical Materials

This Extension Circular reviews what is known about the effects of rotations, tillage practices, and planting and harvest dates on crop insect management, focusing on major crops in Nebraska.

Before the development of synthetic organic insecticides (pre-DDT era), rotations, tillage practices, planting and harvest dates, and other nonchemical cultural controls were commonly recommended for insect management. Research focused on crop rotation and other cultural practices for insect management. With the development of DDT and later insecticides however, research on nonchemical controls decreased markedly.

With the emergence of the concept of sustainable agriculture in the 1980s, there has been increased emphasis …

Nf94-177 Nebraska Surge Irrigation Trials, C. Dean Yonts, Joel E. Cahoon, Dean E. Eisenhauer, Kelly Wertz

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses the Nebraska Surge Irrigation Trials.

Nf94-178 Nebraska Surge Irrigation Trials, C. Dean Yonts, Joel E. Cahoon, Dean E. Eisenhauer, Kelly Wertz

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses the Nebraska Surge Irrigation Trials.

Nf93-120 The 1993 Atrazine Label Revision, Fred W. Roeth

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses the 1993 label revision of Atrazine.

Ec93-126 Procedures For Field Demonstrations Of Nitrogen Management Practices, Edwin J. Penas, Richard B. Ferguson, Gary W. Hergert, Charles A. Shapiro, G.D. Binford

University of Nebraska-Lincoln Extension: Historical Materials

Nitrate-nitrogen in groundwater is a major public concern. Agriculture is often targeted as the primary source; however, crop producers are reluctant to reduce the amount of nitrogen they apply in fear of reducing crop yields and profits. Soil testing for nitrate-nitrogen is being promoted as a way to fine-tune or improve nitrogen management, but adoption by producers has been slow. This publication explains how to conduct a field demonstration using scientifically acceptable methods that are practical for on-farm use.

Nf93-140 Water Management For Irrigation In Nebraska, Norman L. Klocke, Joel E. Cahoon, Dean E. Eisenhauer, Delynn R. Hay, Glenn J. Hoffman, William L. Kranz, Derrel L. Martin, Darrell Watts, C. Dean Yonts

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses water management for irrigation.

Nf93-121 Practices That Reduce Risk Of Spreading Rhizomania, John A. Smith, Eric D. Kerr

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses the rhizomania virus in sugar beets.

G92-1090 Black Dot Disease Of Potato, Alexander D. Pavlista, Eric D. Kerr, Robert B. O'Keefe

University of Nebraska-Lincoln Extension: Historical Materials

The cause, symptom, disease cycle, influencing factors, effects and control of black dot are described. Black dot of potato, a disease caused by the fungus Colletotrichum coccodes, was recognized in Australia and Europe, then was observed and described in Canada in 1921. Since then this disease has spread to many potato production areas of the United States; its occurrence was first reported in Nebraska in 1988. In the past few years, black dot has been recognized on infected potato tissue from several areas of the state. The increased incidence of black dot in Nebraska may have been favored by high …

Ec91-1771 Windbreaks And Wildlife, Ron J. Johnson, James R. Brandle, Mary M. Beck

University of Nebraska-Lincoln Extension: Historical Materials

Windbreaks can support wildlife that add beauty and pleasure to our lives. They also sustain birds that eat insect pests, improve hunting opportunities, and provide a focal point for family outdoor activities. The world around us would be less appealing without the stimulation--the color, sounds, tracks, and mystery--of wild creatures; windbreaks help wildlife and in some areas are essential to survival of the wildlife we enjoy. You can add wildlife benefits to windbreak plantings whether your main goal is to shelter crops, livestock, roads, or a home or farmstead. This publication provides an overview of windbreaks and wildlife, and gives …

Nf91-39 Precipitation And Sprinkler Irrigation Monitoring For Managing Irrigation Scheduling, Steve Meyer, Kenneth Hubbard

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses precipitation and sprinkler irrigation monitoring for managing irrigation scheduling.

Nf91-36 Growing Safflower In Nebraska, Drew J. Lyon, David D. Baltensperger, Ray Sall, Eric Kerr

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses safflower production in the Nebraska Panhandle.

G89-905 Weed Control On Crp Acres (Revised July 1997), Robert N. Klein, Gail A. Wicks, John E. Watkins, Jerry D. Volesky

University of Nebraska-Lincoln Extension: Historical Materials

Establishing perennial grasses on former cropland presents a challenge. Weed control can be accomplished with herbicides, tillage, burning, mowing, and crop competition. The key to weed control is timeliness. Weeds should be controlled on CRP acres to reduce the risk of seeding failure and eliminate possible reseeding costs. Soil moisture must be available for seed germination, seedling emergence, and establishment to be successful in getting stands of grasses and/or legumes. Weeds can quickly and thoroughly consume soil water throughout the upper soil profile and must be controlled to allow grass and legume seedlings to germinate and emerge. In addition, rapid-growing, …

G79-481 Setting A Realistic Corn Yield Goal (Revised January 2004), Achim Dobermann, Charles A. Shapiro

University of Nebraska-Lincoln Extension: Historical Materials

Corn growers need to set a realistic corn yield goal in order to make sound decisions on corn hybrid, seeding rate, fertilizer application, and irrigation need. The goal should be the most profitable yield that can be expected for the particular set of soil, climate, and management practices. Yield goals should gradually increase over time, but cannot exceed the theoretical yield potential. This NebGuide discusses how to set a realistic corn yield goal by acknowledging climatic yield limitations of corn in Nebraska and the yield history in a field.

G78-390 Right Crop Stage For Herbicide Use Alfalfa, Sugarbeets, Soybeans, And Fieldbeans (Revised January 1987), Robert G. Wilson, Alex Martin

University of Nebraska-Lincoln Extension: Historical Materials

If you are using herbicides on alfalfa, sugarbeets, soybeans, or fieldbeans, information in this Guide will help you apply them at the proper time for best weed control with a minimum of crop injury. Proper timing of postemergence herbicides is essential to achieve maximum weed control with minimum crop injury. As field crops grow and mature, their tolerance to herbicides changes. As a general rule, annual and biennial weeds are more susceptible to postemergence herbicides when they are in the seedling stage, becoming increasingly difficult to control as they mature. The grower is thus faced with the problem of when …

G76-322 How To Handle Insect And Plant Specimens For Identification (Revised March 1985), Luanne Coziahr, Stephen D. Danielson, John Furrer, Don Steinegger

University of Nebraska-Lincoln Extension: Historical Materials

The Nebraska Cooperative Extension Service offers the public a pest/plant identification service. Under this service, insects, weeds, plant diseases, and horticultural plants are identified and, if appropriate, methods for their prevention or control are recommended. Diagnoses of plant problems and control recommendations will be more precise if specimens are handled according to the suggestions offered in this NebGuide.