Agriculture Commons^™

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

University of Nebraska-Lincoln Extension: Historical Materials

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

University of Nebraska-Lincoln Extension: Historical Materials

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.

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

University of Nebraska-Lincoln Extension: Historical Materials

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.

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

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 …

2003 Weed Science Research Report – Blue Section, Ndsu Weed Science, Dept. Of Plant Sciences

Plant Sciences Weed Science Reports

The Weed Science team at North Dakota State University conduct field research in the State of North Dakota. This specific document reports on field research conducted in 2003. It includes work on the crops corn, soybean and the management of several weeds in North Dakota.

Ec02-1883 Corn Disease Profiles, James P. Stack, Loren J. Giesler, John E. Watkins, Robert M. Harveson, Jennifer L. Chaky

University of Nebraska-Lincoln Extension: Historical Materials

This two-page, four-color extension circular covers the many diseases of corn in Nebraska. It list and describes corn diseases such as: anthracnose, common smut, bacterial stalk rot and top rot, holcus spot, Stewart's Wilt, Goss's bacterial wilt and blight, common rust, southern rust, and gray leaf rust.

Ec02-177 Purple Loosestrife, Stevan Z. Knezevic

University of Nebraska-Lincoln Extension: Historical Materials

Purple loosestrife (Lythrum salicaria) is an introduced invasive weed that isover running thousands of acres of wetlands and waterways in the Midwest. Once purple loosestrife invades a wetland, natural habitat is lost and the productivity of native plant and animal communities is severely reduced. These losses in turn interfere with various levels of the ecosystem and area recreational activities such as fishing, boating and hunting, diminishing revenue from tourism and impairing the social and economic well being of local communities. A single control measure cannot provide long-term, sustainable control of this weed. An integrated approach, using a variety …

Ec02-176 Musk Thistle, Fred Roeth, Steven R. Melvin, Irvin L. Schleufer

University of Nebraska-Lincoln Extension: Historical Materials

Musk thistle (Carduus nutans L.) is an introduced invasive broadleaf weed native to Europe, North Africa, and Asia. In these areas it is a minor weed because natural enemies keep its population low. When the plant was introduced into North America, its natural enemies were left behind. Without these natural checks, the thistle is able to thrive and compete with native vegetation.

Musk thistles aggressively invade all lands in Nebraska. Typical cropland weed control methods are very effective against them; however, land with permanent cover (pasture, range, roadway ditches and wasteland) that is not tilled or treated with a …

Ec02-105 Nebraska Corn Hybrid Tests, 2002, Lenis Alton Nelson, Robert N. Klein, Roger Wesley Elmore, David D. Baltensperger, Charles A. Shapiro, Stevan Z. Knezevic, James Krall

University of Nebraska-Lincoln Extension: Historical Materials

This circular is a progress report of corn hybrid performance tests conducted by the Agronomy Department and the Northeast, South Central, West Central and Panhandle Research 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. Tests were supported in part by fees paid by hybrid seed corn producers.

Ec02-172 Plumeless Thistle, Kara L. Hilgenfeld, Alex Martin

University of Nebraska-Lincoln Extension: Historical Materials

Plumeless thistle (Carduus acanthoides L.) is one of seven noxious weeds in Nebraska. An introduced invasive broadleaf weed native to Europe and Asia, plumeless thistle currently infests about 65,000 acres in Nebraska. Infestations of plumeless thistle may reduce productivity of pastures and rangeland, where infestations tend to be the largest. Plumeless thistle competes with and suppresses growth of desirable species. Heavy infestations prevent livestock from grazing the area and lighter infestations prevent livestock from eating plants growing near the thistle. Estimates place the annual loss in Nebraska agricultural production due to plumeless thistle at $162,000. Although plumeless thistle is …

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

University of Nebraska-Lincoln Extension: Historical Materials

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.) …

Ec02-171 Canada Thistle, Robert G. Wilson

University of Nebraska-Lincoln Extension: Historical Materials

Canada thistle [Cirsium arvense (L) Scop.] is one of the seven species defined by Nebraska law as a noxious weed. At least 35 other states also have determined by law that Canada thistle poses a threat to the economic, social, and aesthetic well-being of the residents of their state. Canada thistle is probably the most widespread of all the thistle species and many land managers consider it the most difficult thistle to control. In Nebraska, Canada thistle is estimated to infest 460,000 acres.

Ec02-174 Leafy Spurge, Robert A. Masters, Brady F. Kappler

University of Nebraska-Lincoln Extension: Historical Materials

Leafy spurge is an invasive weed that infests over three million acres in the northern Great Plains and the prairie provinces of Canada. It is commonly found in rangelands, pastures, roadsides, rights-of-way, and woodlands. Leafy spurge can reduce rangeland and pasture carrying capacity by as much as 75 percent because it competes with forages and cattle avoid grazing areas infested with this weed. In North Dakota where leafy spurge infests about 900,000 acres, estimates of direct and indirect losses exceed $100 million each year. In Nebraska, the direct loss in forage value attributed to leafy spurge has been estimated at …

Ec02-893 Basis Patterns For Selected Sites In Nebraska For Corn, Wheat, Sorghum, And Soybeans, Lynn Lutgen

University of Nebraska-Lincoln Extension: Historical Materials

The following publication contains corn basis patterns for several towns in Nebraska. The basic price information was collected through electronic media. The listing includes towns that are representative of different geographic locations in Nebraska. The amount of data varies among locations. This publication will be updated each year by adding a year's data to each location which will allow the user to observe changes in the basis patterns over time.

Nf02-504 Atrazine And Non-Atrazine Herbicide Comparisons In No-Till Corn, Fred Roeth, Alex Martin

University of Nebraska-Lincoln Extension: Historical Materials

Atrazine herbicide has been in an EPA special review since 1994 because of soil surface runoff concerns. Beginning in 1997, we evaluated atrazine and non-atrazine herbicide treatments in conventional tillage corn and no-till corn on university research farms at Clay Center (irrigated) and Lincoln, Nebraska (non-irrigated). The objective was to compare some common atrazine and non-atrazine herbicides in soil-applied and post emergence treatment combinations. Fourteen herbicide treatments were selected to represent commonly used herbicide classes and application timings. This NebFact reports the no-till results.

Nf02-503 Atrazine And Non-Atrazine Herbicide Comparisons In Conventional Till Corn, Fred Roeth, Alex Martin

University of Nebraska-Lincoln Extension: Historical Materials

Atrazine herbicide has been in an EPA special review since 1994 because of surface and groundwater contamination concerns. Beginning in 1997, we evaluated atrazine and non-atrazine herbicides in conventional tillage corn and no-till corn on university research farms at Clay Center and Lincoln, Nebraska. The objective was to compare some common atrazine and non-atrazine herbicides for weed control and crop response. Thirteen herbicides were selected to represent commonly used herbicide classes and treatment timings. This NebFact reports the conventional till results.

Drought-Stressed Corn, Thomas Dorn, Bruce Anderson, Richard J. Rasby

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact details how to identify drought stress in corn, its effect on potential yield and how to maximize economic return from drought-damaged corn.

Atrazine And Non-Atrazine Herbicide Comparisons In Conventional Till Corn, Fred Roeth, Alex Martin

University of Nebraska-Lincoln Extension: Historical Materials

Sequential herbicide applications (preemergence followed by postemergence) were more consistent in weed control across four environments because the postemergence treatments controlled weed escapes and second flushes. Singular herbicide treatments were less effective in that regard. Several single applications gave good control but not the excellent control of the sequential treatments. Atrazine in the preemergence application failed to control velvetleaf, but provided good control when used postemergence. The non-atrazine herbicides were at least as effective as the atrazine herbicides.

Nf425 Resistance Management For European Corn Borer And Bt Transgenic Corn: Refuge Design And Placement, Thomas E. Hunt, G. W. Echtenkamp

University of Nebraska-Lincoln Extension: Historical Materials

Factors to consider when designing resistance management refuges and field refuge designs.

An Economic Analysis Of Pre-Harvesting Marketing Strategies And Financial Performance, Manuel Duarte Filipe

LSU Master's Theses

Risk is an important concern in the management of a farm business. The rising input prices along with the variability in the farm commodity prices may result in a risk environment. Government programs have generally provided income support to farmers. However, there has been considerable discussion regarding this support in recent years. The farm act of 2002 and farm bill of 1999 are good examples of such discussions. These uncertainties emphasize the need to improve information for farm's income risk management, and make some one ask if there is not out there any alternative way of managing income risk besides …

Ec01-105 Nebraska Corn Hybrid Tests 2001, Lenis Alton Nelson, Robert N. Klein, Roger Wesley Elmore, David D. Baltensperger, Charles A. Shapiro, Stevan Z. Knezevic, James Krall

University of Nebraska-Lincoln Extension: Historical Materials

This circular is a progress report of corn hybrid performance tests conducted by the Agronomy 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.

Nf01-491 The Corn Stalk Nitrate Test, Charles A. Shapiro, Richard L. Deloughery

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact is about several soil and plant nitrogen tests that have been developed for use, before planting or mid-season, to help farmers decide how much nitrogen to apply to their corn.

Ec01-1880 Diseases Of Nebraska's Field Crops, Loren J. Giesler, Robert M. Harveson, Jim Stack, John E. Watkins, Jennifer L. Chaky

University of Nebraska-Lincoln Extension: Historical Materials

Each year, plant diseases are an important factor in reducing yields of Nebraska's field crops. The purpose of this publication is to provide concise information in an easy to use table for many of Nebraska's field crop diseases. The disease information is organized by crop.

Diseases covered in this publication include the four main groups of plant pathogens: fungi, bacteria, viruses, and nematodes.

Ec01-872 Nebraska Crop Budgets 2001, Roger Selley, Tina N. Barrett, Richard T. Clark, Robert N. Klein, Steve Melvin

University of Nebraska-Lincoln Extension: Historical Materials

The 2001 Crop Budgets contains a list of representative field operations and materials that provides a reminder of items typically invovled in producing the crop. The budgets are presented in a worksheet format with a "Your Estimate" column for recording modifications in costs.

This publication covers the following crops: Forages -- alfalfa, annual hay, corn silage, grass, grass hay, and pasture. Grain -- corn, dry beans, grain sorghum, proso millet, oats, soybeans, sugar beets, sunflower, wheat.

2001 Weed Science Research Report - Blue Section, Ndsu Weed Science, Dept. Of Plant Sciences

Plant Sciences Weed Science Reports

The Weed Science team at North Dakota State University conduct field research in the State of North Dakota. This specific document reports on field research conducted in 2001. It includes work on corn and soybean and the management of several weeds in North Dakota.

Nf00-427 Management Of Seed And Seedling Diseases Of Corn, Jim Stack

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses how to manage seed and seedling diseases of corn.

Ec00-893 Corn Basis Patterns From Selected Sites In Nebraska, Lynn Lutgen

University of Nebraska-Lincoln Extension: Historical Materials

The following publication contains corn basis patterns for several towns in Nebraska. The basic price information was collected through surveys, newspaper, electronic media, etc. The listing includes towns that are representative of different geographic locations in Nebraska. The amount of data varies among locations. This publication will be updated each year by addding a year's data to each location which will allow the user to observe changes in the basis patterns over time.

G1408 Grain Molds And Mycotoxins In Corn, Jim Stack

University of Nebraska-Lincoln Extension: Historical Materials

Storage molds of corn occur in Nebraska annually, potentially lowering grain quality. Mycotoxin contamination of corn occurs periodically, potentially affecting human and animal health. Learn how to identify the different types and their effects. Introduction In Nebraska, grain molds occur every year to varying degrees on field corn, seed corn, white corn, and other specialty corn hybrids. Most grain mold pathogens become associated with the kernel in the field; however, under certain conditions of temperature, relative humidity, and grain moisture, these molds can grow within the colonized kernel and even spread to adjacent kernels during transport and storage. Several issues …

Ec00-105 Nebraska Corn Hybrid Tests 2000, Lenis Alton Nelson, Robert N. Klein, Roger Wesley Elmore, David D. Baltensperger, Charles A. Shapiro, Stevan Z. Knezevic, James Krall

University of Nebraska-Lincoln Extension: Historical Materials

This circular is a progress report of corn hybrid performance tests conducted by the Agronomy 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.

Shakers - South Union, Kentucky (Sc 1318), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid only for Manuscripts Small Collection 1318. Journal (111 p.), kept by Elder John Rees Cooper and others, detailing the daily activities at South Union, Kentucky, 1872-1878. Correspondence regarding the journal and its provenance is included. Pagination refers to the original journal.