Agronomy and Crop Sciences Commons^™

Ec01-107 Nebraska Proso, Sunflower, Pulse Crop, Amaranth, Oat And Spring Wheat Variety Tests 2001, David D. Baltensperger, Glen E. Frickel, Robert N. Klein, James Krall, Jack Cecil, James Hain, Clair Stymiest, John Rickertson, Jerry Nachtman, Lenis Alton Nelson, P. Stephen Baenziger, B. Todd Campbell

University of Nebraska-Lincoln Extension: Historical Materials

This circular is a progress report of spring small grain trials grown throughout Nebraska, and proso, amaranth, sunflower, and pulse crop variety trials conducted by the Panhandle Research and Extension Center, Scottsbluff, and the High Plains Agricultural Laboratory, Sidney. Conduct of the experiments and publication of results is a joint effort of the Agricutlural Research Division and the Cooperative Extension Service.

Evaluation Of Chilling Requirements For Six Arkansas Blackberry Cultivars Utilizing Stem Cuttings, Dayanee Yazzetti

Inquiry: The University of Arkansas Undergraduate Research Journal

Woody perennial plants including blackberries (Rubus subgenus Rubus Watson) require certain amounts of chilling or rest hours below 7T during the dormant season for successful bud break the following year. Blackberry cultivars developed in Arkansas are being grown in various climates worldwide, and all cultivars need chilling requirement estimates for accurate recommendations of adaptation. Determining chilling requirements using stem cuttings collected from field-grown plants rather than whole plants is a desirable system. We conducted a study to evaluate both artificial- and field-chilling of six cultivars. For the artificial-chilling study, 12-node stem cuttings were collected 2 days after the first killing …

Hps Vs. Mh Lamps & Phasic Photoperiod Rep 2, Derek R. Pinnock, Bruce Bugbee

Fact Sheets

'Super Dwarf’ rice was grown at four plant densities (50, 100, 200, and 600 plants m-2) in each of three growth chambers to replicate two previous trials involving lamp type (High Pressure Sodium; HPS and Metal Halide; MH) and photoperiod (12-h continuous and 12-h until anthesis then 24-h until harvest). Individual plots (0.2 m2) were separated by polished aluminum to minimize guard row effects.

Manure Matters, Volume 7, Number 7, J. David Aiken

Manure Matters (newsletter)

Nebraska Livestock Nuisance Law

Until 1976 the Nebraska Supreme Court had ruled that animal feeding operations (AFOs) located in rural areas did not legally constitute a nuisance unless the AFO were improperly operated. However, in 1976 the Nebraska Supreme Court ruled that a rural AFO may constitute a nuisance even if properly operated. This decision made AFO operators liable for the first time in Nebraska if their AFO constituted a nuisance.
In 1977 the Nebraska Unicameral adopted an amendment to the Nebraska Environmental Policy Act defining when AFOs would legally constitute a nuisance. Basically, the statute said that an AFO …

Manure Matters, Volume 7, Number 6, Keith Glewen, Rick Koelsch

Manure Matters (newsletter)

Marketing Manure - Part 2

This is part 2 of a two part series discussing the results of a manure marketing survey conducted by the University of Nebraska.
The survey attempted to identify those services that were packaged with the export of manure to off-farm customers. At this time, many producers do not offer any services to enhance the value of manure (Table 4). Of those exporting manure to off farm users, 40% offered no agronomic services, 51% provided no nuisance avoidance services, and 70% offered no manure processing services. However, there were a number of feedlots that offered services …

Manure Matters, Volume 7, Number 5

Manure Matters (newsletter)

Marketing Manure-Part 1

This is part 1 of a two part series discussing the results of a manure marketing survey conducted by the University of Nebraska.
Livestock enterprises have undergone substantial structural change in recent years, including the concentration of livestock and poultry industry into fewer farms (Council for Agricultural Science and Technology, 1996). There has been a reduction in farms with cattle by 50% and farms with swine by 80% between 1965 and 1995 while numbers of hogs and cattle in inventory has stayed nearly constant (USDA, 1965-1995). Livestock and poultry produce, annually, 3.5 and 3.1 million tons of …

Manure Matters, Volume 7, Number 4, Raymond Ward

Manure Matters (newsletter)

How to Read a Manure Sample Report

Correctly sampling manure can be a challenge. Try to obtain a representative sample and get the sample to the lab as close as possible to the time when manure is going to be applied. It is preferable to obtain sample results before land application so that appropriate application rates can be determined.

Slurry samples should be taken at the time the slurry is being applied, so that you have a good mix of the manure storage. The amount of material is usually recorded in gallons per acre and once the analysis is received, …

Manure Matters, Volume 7, Number 3, M. S. Davis, Terry L. Mader

Manure Matters (newsletter)

Using Weather Stations in Nebraska Livestock Operations

Enforcement of environmental regulations placed on feedlots in Nebraska by the Environmental Protection Agency (EPA), have lead to an increased need for accurate documentation of weather variables. In addition to the need to monitor weather conditions for compliance, an accurate representation of current weather conditions within the microclimate of the livestock operation allow for proactive responses to periods of potential environmental stress periods (i.e. heat and cold stress). Currently, most producers use manual documentation of rainfall events, local weather forecasts and some degree of intuition to monitor weather conditions. Weather station technology exists …

Manure Matters, Volume 7, Number 2, Rick Koelsch

Manure Matters (newsletter)

Pivot Irrigation of Livestock Manure
The selection of an appropriate land application method for manure can have an impact on several environmental issues. Individual methods should be evaluated based upon impact on:

• Air quality
• Water quality
• Soil conservation and quality
• Pathogen transmission

The following discussion will review these considerations as they relate to application of manure or lagoon effluent through a center pivot system. A generalized comparison of the relative strengths and weaknesses of alternative application methods is attached in Table 1.

Manure Matters, Volume 7, Number 8, Richard Stowell

Manure Matters (newsletter)

Pit Additives

As producers have been trying to deal with odor issues on their operations, many have been inundated with product advertisements and solicitations for pit additives. Understandably, producer concerns arise over product effectiveness, reliability and value. Results of an NPPC-supported study on the effectiveness of many pit additives were released this year. This article summarizes major findings of that Odor Solutions Initiative study. A full report of results from that study is available through NPPC.

Manure Matters, Volume 7, Number 10, Christopher Henry, Richard K. Koelsch

Manure Matters (newsletter)

What is an Anaerobic Digester?

The first methane digester plant was built at a leper colony in Bombay, India in 1859. A methane digester system, commonly referred to as an AD (anaerobic digester) is a device that promotes the decomposition of manure or “digestion” of the organics in manure to simple organics and gaseous biogas products. Manure is regularly put into the digester after which the microbes break down the manure into biogas and a digested solid. The digested manure is then deposited into a storage structure. The biogas can be used in an engine generator or burned in a …

Manure Matters, Volume 7, Number 9, Richard K. Koelsch, Bryan Woodbury, David Stenberg, Daniel N. Miller, Dennis Schulte

Manure Matters (newsletter)

Total Reduced Sulfur Concentration in Beef Cattle Feedlots

In 1997, the Nebraska Department of Environmental Quality amended its Title 129 Air Quality Regulations to establish a regulatory threshold for Total Reduced Sulfur (TRS) concentrations under ambient conditions. These thresholds are set at “10.0 parts per million (10.0 PPM) maximum 1 minute average concentration or 0.10 parts per million (0.10 PPM) maximum 30-minute rolling average”. Two agricultural regions of Nebraska with significant cattle finishing in open feedlots came under scrutiny for possible rule violations. In one situation, area feedlots were asked to prepare and implement a TRS control plan.

This growing …

Processing And Conservation Of The Grain Of Corn (Zea Mays L.) And Project Of Industrial Feasibility, Marina Caballero Bautista

Theses and Dissertations

Since Pre-Colombian time corn already formed part of the diet in Aztec and Mayan cultures, and actually represented in them a fountain of wealth and power. The cultivation is utilized in the region in multiple forms, not only for the human diet, but also as feed for animals. Corn is third place in the world production, following wheat and rice. It is cultivated in a total surface of 106 million hectares, its yield is 215 million tons, that represents an average of 2 tons per hectare. The cultivation of corn has special importance, given that this cereal constitutes the basic …

Composting Of Feedlot And Dairy Manure: Compost Characteristics And Impact On Crop Yields, Galen E. Erickson, Terry J. Klopfenstein, Walker Luedtke, Mark Schroeder, Charles A. Francis, Gary Lesoing

Nebraska Beef Cattle Reports

Since 1993, approximately 17,600 tons of beef feedlot and dairy compost have been spread on 1,100 acres. Crop yields were measured to determine the impact of a one-time compost application by using no-compost check strips in large-scale production fields. Adding compost to irrigated corn, irrigated soybeans, and dryland corn acres significantly increased yields, with four-year average increases of 2.3, 1.5, and 2.7%, respectively. For all crops measured, the response to compost was greatest the first year following application and declined linearly in subsequent years. The increased yield from compost application offsets spreading costs using average prices for crops.

Zinc Fertilizer Rates And Mehlich Iii Soil Test Levels For Corn, Lloyd W. Murdock, Paula L. Howe

Agronomy Notes

Zinc (Zn) is the micronutrient most often deficient for corn in Kentucky. This problem occurs every year but is more commonly seen in years with a cool, wet spring. Although the environment, soil type and past erosion each have an effect, the most important factors controlling plant available Zn are the soil pH, extractable soil phosphorus (P) and extractable soil Zn. While the amount of Zn in the plant increases as the available soil Zn increases, increasing levels of soil P and pH are strongly associated with reduced levels of Zn in the plant.

High-Throughput Genotyping For A Polymorphism Linked To Soybean Cyst Nematode Resistance Gene Rhg4 By Using TaqmanTm Probes, Khalid Meksem, Eliza Ruben, David L. Hyten, Michael E. Schmidt, David A. Lightfoot

Department of Agronomy and Horticulture: Faculty Publications

An individual soybean breeder can generate over one hundred thousand new genotypes each year. The efficiency of selection in these populations could be improved if these genotypes were effectively screened with one DNA marker that identified an important gene, and if laboratory throughput was high and costs were low. Our aim was to develop a rapid genotyping procedure for resistance to the soybean cyst nematode. A high-throughput genotyping method was developed with fluorogenic probes to distinguish between two insertion polymorphisms in alleles of an AFLP marker that is located about 50 kbp from the Rhg4 gene candidate. The assay uses …

Conversion Of Aflp Bands Into High-Throughput Dna Markers, K. Meksem, E. Ruben, D. L. Hyten, K. Triwitayakorn, D. A. Lightfoot

Department of Agronomy and Horticulture: Faculty Publications

The conversion of AFLP bands into polymorphic sequence-tagged-site (STS) markers is necessary for high-throughput genotype scoring. Technical hurdles that must be overcome arise from genome complexity (particularly sequence duplication), from the low-molecular- weight nature of the AFLP bands and from the location of the polymorphism within the AFLP band. We generated six STS markers from ten AFLP bands (four AFLPs were from co-dominant pairs of bands) in soybean (Glycine max). The markers were all linked to one of two loci, rhg1 on linkage group G and Rhg4 on linkage group A2, that confer resistance to the soybean cyst nematode (Heterodera …

Ecological Sustainability For Pastoral Management, Hugh Pringle, Ken Tinley

Journal of the Department of Agriculture, Western Australia, Series 4

Pastoralists and rangeland bureaucracies are now required to operate within the limits of ecological sustainability. However, while the concept of ecological sustainability has been enshrined in law and policy at State and Commonwealth levels in Australia, there has been little translation into pastoral management objectives. The introduction of the 'EMU (Ecosystem Management Unit) process', as an equal partnership between ecologists and pastoralists, promises to bring pastoralists into close dialogue with the landscapes they manage on their stations, and to acknowledge and manage for values other than pasture production. In doing so, pastoralists are likely to increase production, reduce costs, and …

Analysis Of A Mixed Cereal Of Legumes That Processes Similar Nutritional Characteristics To A Cereal Product Of Local Consumption And Its Economic Feasibility, Willy Ivan Anzaldo Garcia

Theses and Dissertations

In this analysis, we plan on developing vegetable mixes with high nutritional qualities and instant fuel consumption. These are to be used as a nutritional supplement in the feeding of children from 6 months of age. Initially, I selected the raw material, due to its high protein content and low cost (soy, tarhui, Cuban corn, rice, wheat, barley). They formed mixes with nutritional characteristics similar to the control for reference (15.5% of protein, 419 kcal of energy). From these formulas, different tests of completed production of mixtures, going so far as to obtain eight mixes with good nutritional and organoleptic …

Genetic Analysis Of Kafirins And Their Phenotypic Correlations With Feed Quality Traits, In Vitro Digestibility, And Seed Weight In Grain Sorghum, C. Hicks, S. R. Bean, G. L. Lookhart, Jeffrey F. Pedersen, K. D. Kofoid, M. R. Tuinstra

Department of Agronomy and Horticulture: Faculty Publications

Twenty-three entries of grain sorghum (Sorghum bicolor (L.) Moench), including eight inbred lines (five males and three females) and 15 hybrids, were evaluated to determine the proportion of γ, αII, and β-αI-kafirins and their association with contents of crude protein, fat, and starch; protein digestibility; in vitro dry matter disappearance; and seed weight. The male lines included three normal-seeded lines (TX2737, TX435, and P954063) and two large-seeded lines (Eastin1 and PL-1). Female lines consisted of three common U.S. seed parent lines (Wheatland, Redlan, and SA3042). The lines and their hybrids were grown under dryland conditions at two locations in …

Seed Physiology, Production & Technology: Germination, Emergence, And Yield Of 20 Plant-Color, Seed-Color Near-Isogenic Lines Of Grain Sorghum, Jeffrey F. Pedersen, J. J. Toy

Department of Agronomy and Horticulture: Faculty Publications

Although there is growing demand for sorghum [Sorghum bicolor (L.) Moench] with white seed and tan plant color, there is limited information on the overall agronomic fitness of sorghum with these characters. A set of experiments was conducted to evaluate the combined effects of plant color and seed color on sorghum germination, emergence, and agronomic performance. Twenty near-isogenic lines with red seed/tan plant (RT), red seed/purple plant (RP), white seed/ tan plant (WT), white seed/purple plant (WP) phenotypes were tested under field and laboratory conditions. Plant color X seed color interactions were not significant. Purple plant color phenotypes had higher …

Fisheries Occasional Publication No. 31 - Feeding Lupins To Fish: A Review Of The Nutritional And Biological Value Of Lupins In Aquaculture Feeds, Brett Glencross

Fisheries Occasional Publications

Lupins are the harvested seed of species from the Lupinus genus, a group within the leguminous bean and pea family Fabaceae. Legumes are particularly valuable agricultural crops because of their capacity to provide a grain crop and also fix and return nitrogen to soils and improve the soil value for further cropping. The oilseeds, soybeans and peanuts are also leguminous plants, though traditionally they have been cropped for their oil value, whereas lupins, are cropped for both their protein and nitrogen fixing value (Gladstones, 1998; Perry et al., 1998).

The three key commercial species of lupins are L. angustifolius (Narrow-leafed …

Burakin Focus Catchment Report, Mike Clarke

Natural resources published reports

The Burakin Focus Catchment Project was developed between farmers and Agriculture _ Western Australia. The project was designed to give farmers an understanding of the salinity processes occurring within the Catchment and suggestions on appropriate management.

Work began in the Catchment early in 1999 and was complete at the end of 2000. Intensive hydrological investigations formed the basis of the study, which was complemented by surface water control and revegetation strategies. Agronomic issues associated with sandplain soils were raised by the farmers at the initial meeting and this led to a soil survey to determine the pH status of the …

Farming Systems To Manage Salinity. Farmer Directed Research, Development And Extension. Research Results 2001, Richard Olive

Natural resources published reports

More and more of Western Australia's agnicultural lands are becoming saline. Currently it is estimated that about 18 milliion ha of land are affected to a greater or lesser degree by salinity causing production losses estimated at about $70 million a year.

Unless ways are found to halt and reverse the salinisation of land it is estimated that another 4.4 million ha could become saline over the next 50 years.

Grain growers and the Federal Government, through the Grains Research and Development Corporation (GRDC). are investing $12 4 million in R&D across Australia to develop productive solutions to the salinity …

Arthropod Populations And Rice Yields In Direct-Seeded And Transplanted Lowland Rice In West Africa, I. O. Oyediran, E. A. Heinrichs

Department of Entomology: Faculty Publications

Two methods for planting rice in irrigated lowland were evaluated during the wet seasons of 1994 and 1995 to determine their effect on rice arthropod numbers, insect-caused rice plant damage, and rice grain yield. The six treatments tested were: hand transplanting of seedlings at spacings of 14 cm × 14 cm, 20 cm × 20 cm, and 30 cm × 30 cm; and direct-seeding of rice at 60 kg seeds ha^–1, 90 kg seeds ha^–1, and 120 kg seeds ha^–1. The most abundant arthropods in the study were the diopsid flies, Diopsis longicornis Maquart …

Testing The Efficiency Of Broadacre Farms, Ben Henderson, Ross Kingwell

Journal of the Department of Agriculture, Western Australia, Series 4

A study of 93 broadacre farms has revealed that most farms display high levels of technical efficiency. On average, technical efficiency is improving, although a small proportion of farms remain relatively inefficient due to a number of factors.

Genomic Regions That Underlie Soybean Seed Isoflavone Content, K. Meksem, V. N. Njiti, W. J. Banz, M. J. Iqbal, My. M. Kassem, David L. Hyten, J. Yuang, T. A. Winters, D. A. Lightfoot

Department of Agronomy and Horticulture: Faculty Publications

Soy products contain isoflavones (genistein, daidzein, and glycitein)that display biological effects when ingested by humans and animals, these effects are species, dose and age dependent. Therefore, the content and quality of isoflavones in soybeans is a key to their biological effect. Our objective was to identify loci that underlie isoflavone content in soybean seeds. The study involved 100 recombinant inbred lines (RIL)fr om the cross of ‘Essex’ by ‘Forrest,’ two cultivars that contrast for isoflavone content. Isoflavone content of seeds fromeach RIL was determined by high performance liquid chromatography (HPLC). The distribution of isoflavone content was continuous and unimodal. The …

Legume Logic Number 124

Legume Logic

Contents

EU gives lupins green light

Lupin prices move again

Forum examines future of lupin industry

Anthracnose still a threat

Pulse points

Which pea variety?

Legume Logic in 2001 - a new era

"Bound Together . . . By Blood And Soul": Donald Davidson's Strategic Retreat Into The Myth Of Life In The Old South, Carol Pigg

Masters Theses & Specialist Projects

Donald Davidson has often been called stubborn because of his refusal to let go of the Southern past and in his insistence that his writings be based on and in the regional concerns that he saw as fundamental to all Southern literature. In many ways, Davidson's loyalty to the Agrarian and Fugitive causes, which are best defined in these groups interest in keeping the South's history alive and maintaining an agrarian lifestyle, is his greatest contribution to the Southern and American literary canon. Despite this fact, though, Davidson is now, as he was during his lifetime, ignored because of the …

Central Crops And Soils Research Station Highmore, South Dakota: Annual Progress Report, 2000, Agricultural

Agricultural Experiment Station and Research Farm Annual Reports

This document highlights 14 crop and soils research projects conducted at the Central Crops and Soils Research Station at Highmore in 2000. It is published by the South Dakota Agricultural Experiment Station and the Plant Science Department at South Dakota State University. Information in this document includes: weather and climate data, field evaluation of woody plant materials, Switchgrass Biofuels project report, weed control evaluation test, fertilizer and soil test effects on wheat yields, small grain performance tests, alfalfa production, influence of planting dates on winter wheat, oat research, and sunflower hybrid performance trials.