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Distinguished Fellowship Awards Luncheon, John Owens

John Owens: Speeches and Appearances

It's a true pleasure to see everyone here today as we gather for this distinguished fellowship awards luncheon. On behalf of everyone present, I extend heartiest congratulations to each of you who is an award recipient. We are so pleased for you, who are being honored, and we are so delighted to have you with us.

2007-2008 Annual Report

Lancaster County, Nebraska Extension: Reports

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Wheat Invest. A Compelling Business Case For Investment In The Western Australian Wheat Industry, Department Of Agriculture And Food, Western Australia

Farm Systems and Economics published reports

Western Australia (WA) is an ideal location for wheat production. It has competitive advantages including:

• A proven track record in wheat production accounting for approximately 50 per cent of Australia's production. Based on a five year average from 2003/04 to 2007/08*, WA produces around 7.7 million tonnes of wheat per year.

• Over the past five years, the top 25 per cent of farmers averaged 10 per cent return on capital excluding changes in land value.

• Export focussed due to WA's small population. 90 per cent of WA's wheat is exported

• Abundant land at competitive prices and …

Innovation, Research And Development, Department Of Agriculture And Food, Western Australia

All other publications

The Department of Agriculture and Food, Western Australia proudly plays a vital role In lhe strategic planning, production and marketing of the State's food and fibre industries. via three main criteria.

Innovation

Research

Development

The following are some recent examples of the department's many innovative R&D programs that are showcasing our scientific and technological breakthroughs on the world stage.

Mullewa Research Annexe Spring Field Day Future Farming Systems For North-Eastern Districts 21 August 2008, Department Of Agriculture, Western Australia

Grain and other field crops research reports

Papers:

• Mullewa Research Annexe activities 2008

• Wheat for today and the future

• Consequences of strongly acidic and alkaline soils

• Break crop influence on low rainfall heavy soil

• Chemical fallow options for the north-east agricultural region

• Herbicide tolerance of new wheat varieties

• Lowrainfall oilseed crops for food and biofuel

• Utilising stock to reduce business risk in Binnu! A case study

Population Parameters Of Tetranychus Cinnabarinus Boisduval (Prostigmata: Tetranychidae) On Eight Strawberry Cultivars, Cengi̇z Kazak, Cemal Ki̇bri̇tçi̇

Turkish Journal of Agriculture and Forestry

Development times, reproductive rates, and population growth parameters of Tetranychus cinnabarinus Boisd. on 8 strawberry (Fragaria x ananassa Duchesne) varieties were evaluated under laboratory conditions. Total development times of immature males and females were not significantly influenced by the strawberry varieties. T. cinnabarinus laid significantly more eggs per day on cultivar Muir (8.46) than on the other cultivars. Similarly, T. cinnabarinus on Muir had the highest net reproductive rate (R_o) (120.19 F/F), while R_o was the lowest on cultivar Sweet Charlie (39.51 F/F). The generation time ranged from 18.96 to 22.32 days, but no significant varietal effect was seen. The …

Effect Of Upper Plant Parts On Yield And Quality In Turkish Durum Wheat Landraces From Different Regions, Altitudes, And Provinces, Nusret Zenci̇rci̇

Turkish Journal of Agriculture and Forestry

The aim was to explore 117 durum wheat (T. turgidum L. conv. durum (Desf.) MacKey) landraces from 2 regions, 5 altitude intervals, and 12 provinces for flag leaf length, width, angle, sheath length, fertile spikes, spike length and width, plant yield, percent vitreous kernel, pearling index, percent grain protein, and 1000 kernel weight. The field experiment consisted of 566 single plant selections from 117 populations with Kunduru 1149 and Kızıltan 91 controls, analyzed via descriptive and multivariate statistical methods. Plant yield with the highest variation was positively correlated with flag leaf length, flag leaf sheath length, and spike width. While …

Effect Of Pollination Levels On Yield And Quality Of Maize Grown For Silage, Selahatti̇n İptaş, Musa Yavuz

Turkish Journal of Agriculture and Forestry

Maize (Zea mays L.) hybrids with good yields of grain and whole-plant dry matter are preferred for forage production. The objective of this study was to examine the relationship between kernel development and nutritive value of maize silage, using controlled pollination to alter the extent of ear fill in 4 maize hybrids. Whole-plant acid detergent fiber (ADF), neutral detergent fiber (NDF), and crude protein (CP) were measured. Pollination control affected the ear fill for 0% and 100% pollination levels. Stem diameter and plant height were not affected by pollination treatment; however, they were different for the hybrids. Leaf content and …

Effects Of Increased Phosphorus Rates And Plant Densities On Yield And Yield-Related Traits Of Narbon Vetch Lines, Şaban Yilmaz

Turkish Journal of Agriculture and Forestry

We evaluated seed yield, forage yield, and yield-related traits of 4 different narbon vetch (Vicia narbonensis L.) lines using 3 phosphorus rates and 4 plant densities. The experiment was conducted during the 1999-2000 and 2000-2001 cultivation seasons in Hatay, located in the Eastern Mediterranean region of Turkey. The experimental design was a split-split plot design with 3 replications. Phosphorus levels of 25, 50, and 75 kg P_2O_5 ha^{-1} were the main plots, narbon vetch lines (2382, 2385, 2387, and 2561) were the split plots, and seeding rates (50, 75, and 100 plants m^{-2}) were the split-split plots. Analysis of variance …

Effect Of Modified Atmosphere Packaging On The Quality And Shelf Life Of Minimally Processed Carrots, Zehra Ayhan, Okan Eştürk, Emel Taş

Turkish Journal of Agriculture and Forestry

The objective of this study was to investigate the effect of modified atmosphere packaging on the quality and shelf life of minimally processed carrots during cold storage. Ready-to-eat carrots (Nantes) prepared by manual peeling and automatic slicing were packed with passive (in air) and active modified atmospheres at low (5% O_2, 10% CO_2, 85% N_2) and high oxygen concentrations (80% O_2, 10% CO_2, 10% N_2). Minimally processed carrots were packed in polypropylene (PP) trays sealed with PP based film. Microbial, chemical, physical, and sensory analyses were conducted in carrots for 21 days at 4 °C. There was no yeast or …

Antioxidant Activity Of Cauliflower (Brassica Oleracea L.), Ekrem Köksal, İlhami̇ Gülçi̇n

Turkish Journal of Agriculture and Forestry

Recently, a number of studies on the health benefits associated with fruits, vegetables, herbs and spices demonstrated that they possess potent antioxidant, anti-inflammatory, anti-mutagenic, and anti-carcinogenic activity. The potential antioxidant activity of water and ethanol extracts of cauliflower (Brassica oleracea L.) were investigated to evaluate their potential value as a natural ingredient for foods or cosmetic application. In this study antioxidant activity was measured by 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) radical scavenging, 1,1-diphenyl-2-picryl-hydrazyl free radical (DPPH^.) scavenging, N,N-dimethyl-p-phenylenediamine dihydrochloride (DMPD) radical scavenging, superoxide anion (O2^{.-}) radical scavenging, total antioxidant activity, reducing activity using Fe^{+3}-Fe^{+2} transformation and CUPRAC assays, hydrogen peroxide (H_2O_2) scavenging, …

The Millennium Ecosystem Assessment: Tradeoffs Between Food Security And The Environment, Claudia Ringler

Turkish Journal of Agriculture and Forestry

This paper provides an overview of selected trends and conditions of ecosystem services, in particular, food production and impacts on the environment based on the Millennium Ecosystem Assessment. It then describes outcomes for future ecosystem services under alternative development pathways, with a focus on tradeoffs between food security and the environment, such as implications for fertilizer use, and the role of biofuels. As tradeoffs among various ecosystem services are expected to increase into the future, research will need to focus increasingly on ways to achieve a balance between food security and improving non-food ecosystem services. To reduce adverse future impacts, …

Global Economics Of Nutrient Cycling, Bert H. Janssen, Oene Oenema

Turkish Journal of Agriculture and Forestry

This paper briefly discusses global human requirements of protein nitrogen (N) from crops and animals, and then estimates the need for fertilizer N as a function of N use efficiency, and the recycling of N from animal manure and sewage wastes. These estimates are based on various assumptions and simple calculations. Results suggest that globally only 1% of N input is retained, 28% is lost to the wider environment, and some 70% is potentially available for recycling via manure and sewage. In addition, large amounts of nutrients recycle via crop residues. In practice, only a fraction of this potential is …

Improving Nutrient Use Efficiency, Terry L. Roberts

Turkish Journal of Agriculture and Forestry

Public interest and awareness of the need for improving nutrient use efficiency is great, but nutrient use efficiency is easily misunderstood. Four indices of nutrient use efficiency are reviewed and an example of different applications of the terminology show that the same data set might be used to calculate a fertilizer N efficiency of 21% or 100%. Fertilizer N recovery efficiencies from researcher managed experiments for major grain crops range from 46% to 65%, compared to on-farm N recovery efficiencies of 20% to 40%. Fertilizer use efficiency can be optimized by fertilizer best management practices that apply nutrients at the …

Balanced Crop Nutrition: Fertilizing For Crop And Food Quality, Hillel Magen

Turkish Journal of Agriculture and Forestry

Globally the ratio of N:P_2O_5:K_2O changed from 2.5:1.3:1 in the 1980s to 3.6:1.4:1 in 2002 as N consumption outstripped that of K. Regardless of their decreased nutrient consumption, developed countries maintained a modest increase in agricultural production. Positive and similar growth rates for agricultural products and nutrient consumption prevail in developing countries, but with the use of a 35% higher nitrogen (N) to potassium (K) ratio than in developed countries. The outcome of a negative K balance is presented here using examples from India, China, Egypt, and Bulgaria. Reasons for a negative K balance stem mostly from farmers' lack of …

The Effect Of Micronutrients In Ensuring Efficient Use Of Macronutrients, Mohammad Jafar Malakouti

Turkish Journal of Agriculture and Forestry

Micronutrient deficiency is widespread in many Asian countries due to the calcareous nature of soils, high pH, low organic matter, salt stress, continuous drought, high bicarbonate content in irrigation water, and imbalanced application of fertilizers. Some of the adverse effects of micronutrient deficiency-induced stress in plants include low crop yield and quality, imperfect plant morphological structure (such as fewer xylem vessels of small size), widespread infestation of various diseases and pests, low activation of phytosiderophores, and lower fertilizer use efficiency. The absence of micronutrient fertilizers results in inadequate absorption of trace elements by plants, which causes substantial yield losses in …

The Effect Of Different Land Uses On Soil Microbial Biomass Carbon And Nitrogen In Bartın Province, Ömer Kara, İlyas Bolat

Turkish Journal of Agriculture and Forestry

The microbial biomass of soil is being increasingly recognized as a sensitive indicator of soil quality. Its knowledge is fundamental for sustainable environmental management. This study aimed to determine the impact of different land uses (forest, pasture, and agricultural lands) on soil microbial biomass carbon and nitrogen using the chloroform fumigation extraction (CFE) method. This study also aimed to determine interrelationships between microbial biomass C (C_{mic}) and N (N_{mic}) and the physico-chemical characteristics of the soil. For this purpose, a total of 45 soil samples were taken from 3 different land uses located in the Ağdacı Village in Bartın. Additional …

High Efficiency Somatic Embryogenesis From Immature Zygotic Embryos Of Grapevine: The Effect Of Genotype, Media, 2,4-D, And Incubation Conditions, Serpi̇l Gök Tangolar, Saadet Büyükalaca, Fuat Ergenoğlu

Turkish Journal of Agriculture and Forestry

Immature zygotic embryos of 41 B grape rootstock (V. vinifera L. cv. 'Chasselas' x V. berlandieri) and Yalova İncisi (V. vinifera L.) were cultured on MS, NN, and B5 media supplemented with 0.5, 1, 2, and 4 mg l^{-1} 2,4-D at 16/8 h light/dark photoperiod and complete darkness. For 41 B rootstock, the highest somatic embryo formation was obtained from dark condition on B5 media containing 0.5 and 1 mg l^{-1} 2,4-D with the rates of 30% and 28.9%, respectively. Yalova İncisi zygotic embryos produced 5% somatic embryos only at 16/8 h light/dark photoperiod of MS supplemented with 1 mg …

Genetic Variability Of The European Corn Borer, Ostrinia Nubilalis, Suggests Gene Flow Between Populations In The Midwestern United States, Jeffrey T. Krumm, Thomas E. Hunt, Steven R. Skoda, Gary L. Hein, Donald J. Lee, Pete L. Clark, John E. Foster

Department of Entomology: Faculty Publications

The European corn borer, Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae), is a widely distributed and serious economic pest to corn production in the U.S. Genetic variability of O. nubilalis was studied in 18 sub-populations in the upper Midwestern United States using amplified fragment length polymorphism. The relatively low GST values indicate that more variation exists within populations than between populations. High gene flow (Nm) values were indicated across the entire O. nubilalis population; the lowest degree of gene flow was in the northern samples (Nm = 1.96) and the highest degree of gene flow was in the southern samples (Nm = …

Chemigation Updates 2008

University of Nebraska-Lincoln Extension: Historical Materials

Contents:
Chemigation Management
Biggest Hazard with Chemigation
Routes of Entry
Wind Drift Considerations
In Case of a Spill
Personal Safety
Distance From Pivot Point
Soil Infiltration Rate
Irrigation Management Tools
Our NRD Partneres as of 2007 and we invite others!
Watermark soil water sensors
Hansen AM400 Data Logger
How to Use watermark sensors?
Irrigation Trigger Levels for Different Soil Types
Example: change in soil water status
Atmometer (ETgage)
Using an ETgage for irrigation management
Crop coefficient (Kc)
Equipment considerations
In-Canopy Nozzle Packages
Subsurface Drip Irrigation Systems
Review of the Nebraska Chemigation Act
Definition of Chemical
Rule Change
Injection Location
Safety …

Using Chemigation Safely And Effectively: Training Manual

University of Nebraska-Lincoln Extension: Historical Materials

Table of Contents
Acknowledgements
Introduction
Factors Affecting Chemigation Practice
Irrigation Systems
Chemigation Equipment and Safety Devices
Calibration Procedures
Management
Laws and Regulations
Appendix A Summary - Nebraska Chemigation Act
Appendix B NDEQ Rules and Regulations Pertaining to Chemigation
Appendix C Leakage Test
Appendix D Certified Chemigation Check Valve Models
Appendix E Calculating Irrigated Acreages
Appendix F Fertilizer and Pesticide Containment
Appendix G Disposing of Livestock Waste Through an Irrigation Distribution System
Appendix H Nebraska Natural Resources Districts
UNL Extension Publications

Ec08-130 2008 Guide For Weed Management, Mark L. Bernards, Roch E. Gaussoin, Robert N. Klein, Stevan Z. Knezevic, Drew J. Lyon, Lowell D. Sandell, Robert G. Wilson Jr., Patrick J. Shea, Clyde Ogg

University of Nebraska-Lincoln Extension: Historical Materials

The 2008 Guide for Weed Management in Nebraska is a valuable tool for anyone with responsibility for controlling weeds in crop, pasture, range, turf or aquatic environments in Nebraska. Our goal is to provide a comprehensive publication that will enable the user to make sound weed control decisions based on unbiased, research-based information, and to carry out weed control activities in a safe and responsible manner.

This publication deals principally with herbicides as an aid for crop production. The suggestions for use are based on research at the University of Nebraska–Lincoln Research and Extension Centers and elsewhere.

2008 Nebraska Beef Cattle Report Summaries, Richard J. Rasby, Galen E. Erickson, Dennis R. Brink

University of Nebraska-Lincoln Extension: Historical Materials

Reports on recent beef research are briefly summarized in this publication. Summaries of the research featured in the 2008 Beef Report appear here. Topics include cow-calf, growing, finishing and beef products.

2008 Beef Cattle Report, Dennis R. Brink

University of Nebraska-Lincoln Extension: Historical Materials

2008 compilation of articles on University of Nebraska–Lincoln beef cattle research in four areas: cow/calf, growing, beef feedlot, beef products and analytical methods.

Packing Factors Of Feed Products In Storage Structures, Samuel G. Mcneill, Michael D. Montross, Sidney A. Thompson, I. Joseph Ross, Thomas C. Bridges

Biosystems and Agricultural Engineering Faculty Publications

Experiments were conducted to measure the changes in bulk density of cracked corn, corn meal, soybean meal, cotton seed meal, and distillers dried grain (without solubles) when subjected to simulated overburden pressures. All materials were tested at two moisture content levels (approximately 8% and 12% w.b.) and seven pressures between 0 and 69 kPa (0 and 10 psi). A mathematical model was fitted to the data to predict the bulk density of each feed ingredient as a function of pressure and moisture content. These relationships were inserted into a previously developed computer model to predict ingredient packing within conventional storage …

Airflow Resistance Of Wheat Bedding As Influenced By The Filling Method, J. Łukaszuk, M. Molenda, J. Horabik, B. Szot, Michael D. Montross

Biosystems and Agricultural Engineering Faculty Publications

A study was conducted to estimate the degree of variability of the airflow resistance in wheat caused by the filling method, compaction of the sample, and airflow direction. Two types of grain chambers were used: a cylindrical column 0.95 m high and 0.196 m in diameter, and a cubical box of 0.35 m side. All factors examined were found to influence considerably the airflow resistance. Gravitational axial filling of the grain column from three heights (0.0, 0.95 and 1.8 m) resulted in the pressure drops of 1.0, 1.3, and 1.5 kPa at the airflow velocity of 0.3 m/s. Consolidation of …

The Kentucky Agricultural Economic Outlook For 2008, Laura A. Powers

Kentucky Agricultural Economic Outlook

No abstract provided.

Identification Of Advantages Of Maize-Legume Intercropping Over Solitary Cropping Through Competition Indices In The East Mediterranean Region, Şaban Yilmaz, Mehmet Atak, Mustafa Erayman

Turkish Journal of Agriculture and Forestry

Alternate planting combinations of maize (Zea mays L.) with common bean (Phaseolus vulgaris L.) or cowpea (Vigna sinensis L.) were compared with the solitary planting of each crop during 2003 and 2004 under the East Mediterranean conditions in Turkey. The experiment comprised 15 treatments; sole planting of maize (71,500 plant ha^{-1}), sole planting of common bean (285,750 plant ha^{-1}) and cowpea (285,750 plant ha^{-1}), and 2 different planting patterns (1- and 2-row plantings) with 6 maize-legumes intercropping series, 50:50, 67:50, and 100:50, respectively, using randomized complete block design with 3 replications. Evaluation of the planting patterns was performed on basis …

Effect Of Sodium Borohydride On Populus Tremula L. Kraft Pulping, Abdullah İstek, İhsan Özkan

Turkish Journal of Agriculture and Forestry

Sodium borohydride (NaBH_4) added kraft pulping was performed using European aspen (Populus tremula L.) chips and the effects of the NaBH_4 addition on the physical and optical properties of pulps and resultant papers were investigated. In order to determine the optimum cooking parameters, 6 different laboratory experiments were carried out, which indicated that 2 cooking conditions were better than the others. The effects of 1%, 2%, and 3% NaBH_4 additions on pulps and paper properties were investigated based on these 2 cooking conditions. It was noted that the increasing level of NaBH_4 added improved the screened pulp yield and pulp …

Microbial Community Structure Dynamics In Ohio River Sediments During Reductive Dechlorination Of Pcbs, Andres Enrique Nunez

University of Kentucky Doctoral Dissertations

The entire stretch of the Ohio River is under fish consumption advisories due to contamination with polychlorinated biphenyls (PCBs). In this study, natural attenuation and biostimulation of PCBs and microbial communities responsible for PCB transformations were investigated in Ohio River sediments.

Natural attenuation of PCBs was negligible in sediments, which was likely attributed to low temperature conditions during most of the year, as well as low amounts of available nitrogen, phosphorus, and organic carbon. Moreover, surface sediments were relatively oxidized, as indicated by the prevalence of aerobic bacteria such as beta- Proteobacteria, alpha-Proteobacteria, Sphingobacteria, and Nitrospira in 16S rRNA sediment …