Agriculture Commons^™

Impact Of Alkaline Dust Pollution On Soil Microbial Biomass Carbon, Ömer Kara, İlyas Bolat

Turkish Journal of Agriculture and Forestry

The effect of alkaline dust pollution emitted from Bartın cement plant on the soil microbial biomass carbon was investigated using the chloroform fumigation-extraction (CFE) method. Microbial biomass C (C_{mic}) values ranged from 157.82 to 1201.51 µg g^{-1} soils in the polluted area and from 726.70 to 1529.14 µg g^{-1} soils in the control area. Soils polluted with alkaline cement dust resulted in significant reductions in C_{mic} levels compared to control soils. Microbial biomass C correlated negatively with CaCO_3 content (r = -0.52, P < 0.05) and positively with soil organic C (r = 0.67, P < 0.01). C_{mic}:C_{org} ratio proved to be a reliable soil microbial parameter for describing the change in the man-made ecosystem. Mean C_{mic}:C_{org} ratio was 2.55 and 3.09 in the polluted soils and control soils, respectively. The decrease in this ratio was an indication of soil degradation in the polluted soils. A significant decline in the C_{mic}:C_{org} ratio in cement dust-polluted soils also indicated that this parameter can serve as a good indicator of soil health.

Enhancing Fertiliser Use Efficiency For Transplanted Vegetables, Dennis Phillips, Aileen Reid, Gavin D'Adhemar

Horticulture research reports

Horticulture Australia (HAL) Project No. VG04018.

Project VG 04018 ‘Enhancing fertiliser use efficiency for transplanted vegetables’ showed that spraying highly concentrated solutions containing nitrogen over newly transplanted vegetable seedlings for between 14 and 21 days after planting can increase marketable yields by as much as 300% compared to other methods of fertiliser application. Crops that this method has been successfully tested on in this study by the W.A. Department of Agriculture and Food include iceberg and Cos lettuce, broccoli, cauliflower, Chinese cabbage (wombok), celery and cabbage.

The research was conducted on virgin sandy soils of the Swan Coastal Plain near …

Growing Cucumbers In Protected Cultivation In Western Australia, John Burt

All other publications

There are over 20 growers who produce cucumbers under protected cultivation in Western Australia, ranging from Manjimup in the South-West to Geraldton and Carnarvon. They mainly grow these crops hydroponically in greenhouses. There is also some production under shadecloth and some crops are grown in soil. There are two types of cucumbers grown under protected cultivation. The Continental or burpless cucumber is the main type of cucumber and has long fruit, whereas the Lebanese (mini) cucumber has shorter fruit. Compared with field cucumbers, these two types are seedless and do not require pollination to produce fruits. To ensure they are …

Impact Of More Intensive Grazing On Nitrogen And Phosphorus In Shallow Aquifers Of The Southern Perth Basin, D L. Bennett, Patrick Donnelly, Peter J. Tille

Resource management technical reports

This study reports on the nutrient content, pH and salinity of groundwater samples collected from the watertable and within the Superficial and the upper Leederville Aquifers from the Southern Perth Basin, south of Pinjarra, Western Australia. Sampling was undertaken to determine the impact of intensification of broadscale grazing on groundwater nutrients in the area.

Australian Temperate Strawberry Breeding Program (Western Australia) Selection Of New And Advanced Short Day Breeding Lines And Cultivars In Western Australia - 2006/2007, Aileen Reid, Dennis Phillips, Hal

Horticulture research reports

Thirty-two ‘Stage 4’ numbered selections (2004 crosses) from the Australian Temperate Strawberry Breeding Program were evaluated in unreplicated plots on a commercial property in Wanneroo for their potential under WA conditions. Seven of these have been selected as worthy of further testing. The priority selection among these was 04- 021-263, and the other six included 04-021-467, 04-037-102, 04-021-241, 04-021-172, 04-021-475 and 04-029-211.

In addition, 21 advanced numbered selections (Stages 5, 6 and 7) were also evaluated on the same grower’s property. Three of those were substantially larger plots and a later planting date. Of the first group of 18 selections, …

Boyup Brook - Upper Warren Area : Catchment Appraisal 2007/ Prepared By The South West Arm Region Appraisal Team., Henry Brockman

Resource management technical reports

The aim of this Resource Management Technical Report is to assess the current extent of salinity and other natural resource degradation issues in the Boyup Brook - Upper Warren area and provide landholders with the best current management options to address natural resource management issues and enhance sustainable agricultural production.

2007 Guide For Weed Management In Nebraska, Mark L. Bernards

University of Nebraska-Lincoln Extension: Historical Materials

2007 Guide for Weed Management in Nebraska. Includes special sections on weed control in corn, soybean, wheat, other small grains, sorghum, turfgrass and alternative crops. Also includes sections on integrated weed management, classification of herbicides by mode and site of action and chemical family, herbicide application and sprayer recommendations, weed response ratings to specific herbicides, herbicide hazards, herbicide safety and herbicide resistance, weed management in herbicide-resistant crops and Nebraska noxious weeds.

Potential Capture Of Surface Run-Off For Reliable Water Supplies In The 500-825 Mm Rainfall Zone Of South Western Australia, D L. Bennett, Peter J. Tille, Ned Stephenson, Tilwin Westrup

Resource management technical reports

No abstract provided.

West Midlands Region Catchment Appraisal 2007, Angela Stuart-Street, Northern Agricultural Region Catchment Appraisal Team

Resource management technical reports

Annual run-off likely to occur was calculated for farm-scale catchments within the 500-825 millimetre rainfall zone of the South West Catchment Council [Western Australia] area. When compared with historical flow measurements, this method was found to be accurate (or conservative) in 85% of all measured years, indicating its usefulness for predicting reliable annual flows.

Ua66/5/2 Newsletter, Wku Department Of Agriculture

WKU Administration Documents

Newsletter regarding programs, events, students and alumni of the WKU Agriculture department.

Agriculture: A Look Back, Lacrosse Public Library

Agriculture/Horticulture

Bibliography and photographs of a display of government documents from LaCrosse Public Library, Wisconsin.

Local Food From Local Farms: Benefits And Opportunities, John Owens

John Owens: Speeches and Appearances

Last month - July 4, to be exact - the Lincoln Journal Star devoted more than a page to stories about Community. Supported Agriculture Networks, and a Nebraska family who sells jams, jellies, pickles, noodles, free-range eggs, dry-mixes and tomato soup at the Haymarket Farmers-Market on Saturdays.

Tractor Test Laboratory Track Dedication, John Owens

John Owens: Speeches and Appearances

It is my very great pleasure to be part of welcoming you here today as we dedicate our new Tractor Test Laboratory track.

Screc District Vip Event, John Owens

John Owens: Speeches and Appearances

Folks, it's a great treat to have this opportunity to share with you how we in the Institute of Agriculture and Natural Resources are at work for Nebraska. I want to talk with you a little bit today about that work, our land-grant university history, and where our vision for Nebraska's future is taking us.

Nebraska Hall Of Agricultural Achievement Dinner, John Owens

John Owens: Speeches and Appearances

It is my pleasure to be with you tonight celebrating the accomplishments of these wonderful and worthy new additions to the Nebraska Hall of Agricultural Achievement. I'm delighted to have this opportunity to help recognize these individuals who are so deserving of their honors. What a pleasure to say, "well done and thank you" to people who make such significant contributions to the world, who live their lives meaningfully in the way they choose to put their talents and their energies to work.

The Effects Of Row Spacing On Yield And Yield Components Of Full Season And Double-Cropped Soybean, Sevgi̇ Çalişkan, Mehmet Arslan, İlhan Üremi̇ş, Mehmet Emi̇n Çalişkan

Turkish Journal of Agriculture and Forestry

Compared to full season soybean cropping systems, seed yield reduction is a major concern in double-cropped soybean production systems. This study was conducted at the Research Farm of Mustafa Kemal University, Hatay, Turkey, to determine if it is possible to enhance the yield of both full season and double-cropped soybean by narrowing row spacing. Two soybean cultivars, A3935 and S4240, were planted using row widths of 30, 50, and 70 cm, and twin row (50 25 50 cm) in 2004 and 2005. Seed yield and the other investigated plant parameters of double-cropped soybean were lower compared to full season soybean. …

Pathogenicity Of Bursaphelenchus Mucronatus In Pine Seedlings Under Greenhouse Conditions, Süleyman Akbulut, Beşi̇r Yüksel, Meti̇n Seri̇n, İsmai̇l Baysal, Mahi̇r Erdem

Turkish Journal of Agriculture and Forestry

Bursaphelenchus mucronatus, a species closely related to the pinewood nematode (Bursaphelenchus xylophilus, a quarantine pest), was isolated from several wilted pine trees in different provinces of Turkey. To understand the role of B. mucronatus in these wilting cases, the pathogenicity of B. mucronatus on 3-year-old seedlings of the 3 pine species most widespread in Turkey was investigated under greenhouse conditions. In all, 30 seedlings of each tree species were used for nematode inoculation. For inoculation, 1000-1100 nematodes in 0.5 ml of distilled water were used per seedling. An additional 20 seedlings of each tree species were inoculated with an equal …

Somatic Embryogenesis From Immature Cotyledons Of Some European Chestnut (Castanea Sativa Mill.) Cultivars, Beki̇r Şan, Mehmet Sezgi̇n, Hati̇ce Dumanoğlu, A. İlhami̇ Köksal

Turkish Journal of Agriculture and Forestry

In 4 European chestnut (Castanea sativa Mill.) cultivars ('Hacıibiş', 'Karamehmet', 'Osmanoğlu' and 'Sarıaşlama'), somatic embryogenesis from immature cotyledons of open-pollinated seeds collected 5, 6, 7, and 8 weeks after anthesis and cultured on Driver and Kuniyuki walnut (DKW) medium was determined in this study. The percentage of embryogenic cotyledons and the number of embryos per embryogenic cotyledon were recorded at the end of the second subculture. The results showed that the highest percentage of embryogenesis ranged from 40% to 70% and the number of embryos per embryogenic cotyledon varied from 4.04 to 7.70 among the cultivars. Cotyledons collected 5, 6, …

Bending Moment Capacity Of Metal Plate Connected Wood-Splice Joints Constructed With Red Pine (Pinus Brutia Ten.) Lumber, Ergün Günteki̇n

Turkish Journal of Agriculture and Forestry

The ultimate bending moment carrying capacity of metal-plate-connected (MPC) wood-truss-splice joints constructed with red pine (Pinus brutia Ten.) lumber was investigated. Lumber 38 mm by 90 mm and 3 different sizes of metal plate connectors were utilized in constructing the joints. A 4-point loading method was used to determine the joints' bending moment capacity. Tensile splice joints were tested in both flat- and edgewise positions. The effects of tooth orientation and metal plate size on the bending moment capacity of the joints were investigated. The results indicated that both tooth orientation and plate size significantly influenced the joints' bending moment …

Digital Analysis Of Leaf Surface Area: Effects Of Shape, Resolution, And Size, Jeffrey Bradshaw, Marlin E. Rice, John W. Hill

Panhandle Research and Extension Center

The effects of shape, size, and capture resolution on digital area measurement were investigated to accurately and precisely estimate leaf surface area. A digital scanner was used to measure two simple shapes (circle and square) at three resolutions (118.159, 236.270 and 472.441 pixels/cm) and five sizes (3.14, 12.58, 28.29, 50.29, and 78.60 cm²). Additionally, the accuracy and precision of two digital scanner models were compared using two shapes (circle and square) of similar size at five resolutions (29.528, 39.370, 59.055, 118.159, 236.270, and 472.440 pixels/cm). A method is described to measure leaf area using an image histogram and …

Penstemon: A Summary Of Interspecific Crosses, Dale T. Lindgren, Daniel Schaaf

West Central Research and Extension Center, North Platte

Documenting the successful interspecific crosses in a genus is a valuable tool in making decisions in developing strategies for plant breeding activities. However, summarizing the breeding and hybridization can be confusing because of incomplete or lost breeding records and the failure to register the parentage of new cultivar names. A summary of interspecific crosses in the genus Penstemon at the University of Nebraska– Lincoln West Central Research and Extension Center over 10 years provides insight into both successful and unsuccessful crosses. The results, based on seed production and percent of successful crosses, would suggest that interspecific crosses are more likely …

Choice Of Summer Fallow Replacement Crops Impacts Subsequent Winter Wheat, Drew J. Lyon, David Nielsen, Douglas Felter, Paul Burgener

Panhandle Research and Extension Center

Winter wheat (Triticum aestivum L.) is the foundation of dryland cropping systems in the Central Great Plains. The objective of this study was to quantify the effects of four short-season spring-planted crops used to replace summer fallow on the subsequent winter wheat crop. Wheat was seeded into four crop stubbles [spring triticale (xTriticosecale Wittmack), dry pea (Pisum sativum L.), foxtail millet (Setaria italica L. Beauv.), and proso millet (Panicum miliaceum L.)] at sites near Akron, CO, and Sidney, NE, in the fall of 2004 and 2005. These summer fallow replacement crops were planted into silt …

No-Choice Preference Of Cerotoma Trifurcata (Coleoptera: Chrysomelidae) To Potential Host Plants Of Bean Pod Mottle Virus (Comoviridae) In Iowa, Jeffrey Bradshaw, Marlin E. Rice, John H. Hill

Panhandle Research and Extension Center

To better understand the naturally occurring host range of Bean pod mottle virus (family Comoviridae, genus Comovirus, BPMV) and its principal vector Cerotoma trifurcata (Förster) (Coleoptera: Chrysomelidae), 18 field-collected perennial plant species were tested for the presence of BPMV. By using no-choice assays, we determined the preference of these plants by bean leaf beetle, by measuring their level of herbivory relative to soybean, Glycine max (L.). New food hosts for adult bean leaf beetles include Lespedeza capitata (Michaux), Lotus corniculatus L., Trifolium alexandrinum L., Trifolium ambiguum Bieberstein, and Trifolium incarnatum L. Desmodium illinoense Gray is discovered as a …

Case Study: Dried Distillers Grains As Creep Feed For Yearling Beef Cattle Grazing Sandhill Range, R. N. Funston, D. C. Adams, M. C. Stockton

West Central Research and Extension Center, North Platte

Seventy-nine crossbred steers and heifers born in June or August were stratified by weight, calving group, and sex and assigned to treatment or control. Yearlings in the treatment group (TRT; n = 40) grazed native summer Sandhill range and had access to ad libitum dried distillers grains (DDG) pellet in a creep feeder for 54 d of a 63-d grazing period. Control (CON; n = 39) yearlings grazed in an adjacent pasture without DDG. Immediately after the grazing period, yearlings were placed in a feedlot and fed to a similar finish end point. Individual forage and DDG intake …

Phosphorus Losses In Runoff After Application Of Litter From Broilers Fed High-Available Phosphorus Corn Feed, David D. Tarkalson, Robert L. Mikkelsen

West Central Research and Extension Center, North Platte

Recent efforts to reduce phosphorus (P) content of corn grain fed to poultry have led to the development of low-phytic-acid corn. Research is needed to evaluate the environmental impact of the application to cropland of manure from animals fed low-phytic-acid corn. The purpose of this research was to determine P losses in runoff from a bare Piedmont soil (cecil clay loam; clayey, kaolinitic, thermic, Typic Kanhapludult) in the southeastern United States receiving surface applications of broiler litter from birds fed a low-phytic-acid corn (HAP broiler litter). The HAP litter was applied at rates of 0, 8, 16, 33, 49, 66, …

Making The At Work For Nebraska Report Work For Ianr: Next Steps, John Owens

John Owens: Speeches and Appearances

Folks, I am so pleased to have this opportunity to talk with you about the "At Work for Nebraska" report we recently received from Battelle of Columbus, Ohio.

Endeavors 2006-07

Endeavors: Highlights of University of Nebraska-Lincoln Agricultural Research Division Research

CONTENTS:

ARD innovation has statewide impact
New beef products rooted in IANR research
Mixing drier, bulkier materials with wet ethanol byproducts increases storage life, flexibility of feed
Agronomy prof heads new energy center partnership with NPPD
Water Optimizer to be enhanced, expanded
UNL scientists helping to identify ethanol co-products’ potential in dairy cow, swine diets
Research provides glimpse into Sandhills’ past
New grant supports organic farming research
Rural Poll reflects reservations about newcomers
Economic study measures benefits of increasing storage of recreation water in Lake McConaughy
Sorghum, millet research connects UNL with U.S., global researchers in cooperative program
Sorghum, millet …

Ec07-101 2007 Spring Seed Guide, Lenis Alton Nelson, Bruce Anderson, Robert N. Klein, Richard B. Ferguson, 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 variety and hybrid performance tests conducted by the Agronomy/Horticulture Department, the Northeast, West Central and Panhandle Research and Extension Centers, the South Central Agricultural Laboratory as part of the University 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. The following pages include the results of our variety testing programs for many crop species throughtout the state. We hope you find this information useful as you make hybrid and variety decisions for next …

African-American Environmentalism: Issues And Trends For Teaching, Research And Extension, Clyde E. Chesney

Extension Publications

No abstract provided.

Effect Of Tillage Implements And Operating Speeds On Soil Physical Properties And Wheat Emergence, Mustafa Gökalp Boydaş, Ni̇hat Turgut

Turkish Journal of Agriculture and Forestry

Tillage is an operation to improve soil conditions for optimal crop emergence and yield. Different tillage implements and operational variables may affect soil physical properties. An experiment with different primary tillage implements and operating speeds and their influence on physical properties of loamy soil and wheat seedling emergence was conducted in northeast Anatolia in 2003. The compared tillage implements were: 1. Moldboard plow (MP); 2. Slatted moldboard plow (SMP); 3. Disk plow (DP); 4. Chisel plow (CP); and primary tillage + rotary harrow systems (mounted at the back of this primary tillage): 5. MPH, 6. SMPH, 7. DPH, and 8. …