Digital Commons Network^™

Best Management Practices For Corn Production In South Dakota: Soil Fertility, David E. Clay, Kurtis D. Reitsma

SDSU Extension Circulars

Corn requires sufficient amounts of at least 14 nutrients for optimal production (fig. 7.1). Soil fertility strategies should consider soil residual plant nutrients, cost of fertilizer relative to the value of corn, and management techniques that increase efficiency.

Epiparasitism In Phoradendron Durangense And P. Falcatum (Viscaceae), Clyde L. Calvin, Carol A. Wilson

Aliso: A Journal of Systematic and Floristic Botany

Phoradendron, the largest mistletoe genus in the New World, extends from temperate North America to temperate South America. Most species are parasitic on terrestrial hosts, but a few occur only, or primarily, on other species of Phoradendron. We examined relationships among two obligate epiparasites, P. durangense and P. falcatum, and their parasitic hosts. Fruit and seed of both epiparasites were small compared to those of their parasitic hosts. Seed of epiparasites was established on parasitic-host stems, leaves, and inflorescences. Shoots developed from the plumular region or from buds on the holdfast or subjacent tissue. The developing endophytic …

Best Management Practices For Corn Production In South Dakota : Corn Calendar And Troubleshooting Guide, Troy Bauder, Dwayne L. Beck, Sue L. Blodgett, C. Gregg Carlson, Michael A. Catangui, David E. Clay, Sharon A. Clay, Darrell L. Deneke, Martin A. Draper, B. Wade French, Billy W. Fuller, Robert G. Hall, Curt A. Hoffbeck, Daniel S. Humburg, Marie A. Langham, Douglas D. Malo, Mike J. Moechnig, Richard E. Nicolai, Kurtis D. Reitsma, Bradley E. Ruden, Thomas E. Schumacher, Dennis P. Todey, Todd P. Trooien, Hal D. Werner, James A. Wilson, Howard J. Woodard, Leon J. Wrage

SDSU Extension Circulars

No abstract provided.

Plant Growth-Promoting Rhizobacteria Allow Reduced Application Rates Of Chemical Fertilizers, A. O. Adesemoye, H. A. Torbert, J. W. Kloepper

Department of Plant Pathology: Faculty Publications

The search for microorganisms that improve soil fertility and enhance plant nutrition has continued to attract attention due to the increasing cost of fertilizers and some of their negative environmental impacts. The objectives of this greenhouse study with tomato were to determine (1) if reduced rates of inorganic fertilizer coupled with microbial inoculants will produce plant growth, yield, and nutrient uptake levels equivalent to those with full rates of the fertilizer and (2) the minimum level to which fertilizer could be reduced when inoculants were used. The microbial inoculants used in the study were a mixture of plant growth-promoting rhizobacteria …

Best Management Practices For Corn Production In South Dakota : Corn Diseases In South Dakota, Troy Bauder, Dwayne L. Beck, Sue L. Blodgett, C. Gregg Carlson, Michael A. Catangui, David E. Clay, Sharon A. Clay, Darrell L. Deneke, Martin A. Draper, B. Wade French, Billy W. Fuller, Robert G. Hall, Curt A. Hoffbeck, Daniel S. Humburg, Marie A. Langham, Douglas D. Malo, Mike J. Moechnig, Richard E. Nicolai, Kurtis D. Reitsma, Bradley E. Ruden, Thomas E. Schumacher, Dennis P. Todey, Todd P. Trooien, Hal D. Werner, James A. Wilson, Howard J. Woodard, Leon J. Wrage

SDSU Extension Circulars

Corn diseases can be separated into 1) seed and seedling diseases, 2) root-infecting nematodes, 3) leaf diseases, 4) rusts, 5) stalk rots, and 6) ear and grain molds. Yield losses can result from diseases directly reducing yields or from harvestability, spoilage, or marketing and/or use issues associated with mycotoxin contamination. See Table 9.1 for corn disease management information. Attention to optimal seed quality, hybrid selection, seed treatments, weed and insect control, crop rotation, soil fertility, irrigation, and prompt harvest can reduce disease impacts. This chapter discusses aspects of recognizing and managing South Dakota corn diseases.

Overseeded Bermudagrass Spring Trasition Response To Mowing Height, Nitrogen Rate, Sulfonylurea Herbicide, And Allelopathy, Raymond Mccauley

All Theses

Hybrid bermudagrass [Cynodon transvaalensis Burtt-Davey x C. dactylon (L.)
Pers.] is the preferred turf for golf courses and athletic fields across the southern United
States because of its dark green color, fine texture, good wear and drought tolerance, and
excellent recuperative rate. Despite its many attributes, bermudagrass goes dormant and
turns an unsightly brown color when soil temperatures fall below 10-13oC (50-55super>oF).
Perennial ryegrass (Lolium perenne L.) is often overseeded into bermudagrass in the fall
to sustain acceptable turf quality through the spring months. However, perennial ryegrass
aggressively competes with the bermudagrass for resources in the spring and potentially …

Root-Zone Characteristics And Bermudagrass Response To Saline Water Delivered By Subsurface Drip Irrigation, Kelsey Gorman

All Theses

Population growth and recurring drought conditions have placed high demands on freshwater resources in South Carolina. Thus, turfgrass irrigation management practices that reduce freshwater use while maintaining quality turfgrass need to be identified.
Previous research in the arid Southwest USA documents water conservation on bermudagrass by using saline water sources and subsurface drip irrigation (SDI) systems. A field-scale facility was constructed in Florence, SC, to evaluate `Tifway' bermudagrass
(Cynodon dactylon (L.) Pers. X C. transvaalensis Burtt Davy) quality, growth, and rootzone characteristics when subjected to saline (3.15 dS m-1) or freshwater (0.07 dS m-1) irrigation, SDI lines spaced 41 or …

Forage Species Alters Animal Performance, Carcass Quality, And Fatty Acid Composition Of Forage-Finished Beef Produced In Summer Months, Jason Schmidt

All Theses

The objective of this study was to evaluate how forages grazed during the summer months alter live animal performance, carcass quality, consumer acceptability and fatty acid composition in finishing beef cattle. Angus-cross steers (n=60) were finished on alfalfa (AL), bermudagrass (BG), chicory (CH), cowpea (CO), and pearl millet (PM) during this two year trial. Using a complete randomized block design, ten 2-ha paddocks were blocked and assigned to forage species (2 reps per species). Each year, steers (n=3) were randomly assigned to paddocks and grazing began when adequate forage growth for individual species was present. Put and take grazing techniques …

Goatsrue (Galega Officinalis) Seed Biology, Control, And Toxicity, Michelle Oldham

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Goatsrue is an introduced perennial plant that has proven to have great invasive potential, leading to its classification as a noxious weed in many states and at the federal level. This research focused on seed biology, herbicide control, and toxic dynamics of goatsrue. Physical dormancy of mature goatsrue seed was tested through scarification using sulfuric acid with exposures of up to 60 minutes resulting in 100% germination. Comparison of dormancy for 26-year-old and 6-month-old goatsrue seed indicated aged seeds had reduced dormancy levels compared to newly harvested seeds, but had similar viability. Goatsrue seedling emergence was inversely related to burial …

The Reestablishment Of American Ginseng (Panax Quinquefolius), Mary Snow, Richard Snow

Publications

Conservation biology and restoration ecology are concerned not only with protecting fragile ecosystems but also with intervening in an attempt to repair what has been damaged largely through anthropogenic activities. As a result of high demand as a medicinal herb and the failure of harvesters to conserve, the federal government has placed American ginseng (Panax quinquefolius) on the list of plants that may be in danger of extinction. Ginseng favors a habitat ranging from 30 to 50 degrees north latitude and minimum cold cycles of 45 days with temperatures below 2 degrees Celsius. Other specific criteria include 20 inches of …

An Analysis Of The Environmental And Hormonal Effects On The Growth And Development Of The Moss Ceratodon Purpureus, Megan Knight

Undergraduate Honors Thesis Collection

Ceratodon has not been documented in scientific literature as thoroughly as other species of moss such as Funaria or Tortula. Commonly known as fire moss or purple horned moss, Ceratodon is often reddish or yellow-brown and the spore capsules are usually purple (Crum, 1983). A picture of the species growing in its natural habitat is shown in Figure 4. Ceratodon often grows in tufts and is considered a weed, often thriving in polluted or disturbed areas and frequently invading after a fire (Crum 1983). Ceratodon belongs to the class Bryopsida, which also contains the previously mentioned Funaria and Tortula species. …

Sorghum Grain Mold: Sustainable Pest Management Strategies, Intsormil

INTSORMIL Impacts and Bulletins

Global losses due to grain mold are estimated to be $130 million annually. Sorghum grain mold is caused by a complex of fungal species, the most important being Fusarium thapsinum and Curvularia lunata. An additional 25 fungal genera are secondary invaders. Grain mold reduces the quantity of food available, as the fungus consumes a portion of the grain, and reduces the quality and economic value of what remains by producing pigments and toxins that make the grain less palatable and nutritious. Fusarium spp. and the secondarily invading Aspergillus spp. may produce toxins such as aflatoxins (a highly carcinogenic and …

Switchgrass For Forage And Bioenergy: I. Effects Of Nitrogen Rate And Harvest System, Maru Kering, J. T. Biermacher, Billy Cook, John A. Guretzky

Department of Agronomy and Horticulture: Faculty Publications

Switchgrass (Panicum virgatum L.) has been targeted for cellulosic ethanol production. Our objective was to evaluate effects of location, harvest system, and N fertilizer rates on switchgrass biomass yield and N, P, and K removal. Randomized complete block experiments with four replications were established on one-year old stands of ‘Alamo’ switchgrass at two Oklahoma locations in 2008. Harvest system and N rate interactions affected total annual yield. Biomass yields ranged from 9020 to 10530 kg/ha across harvest systems when no N was applied. With application of 179 kg N/ha, biomass yields averaged 10715, 13912, and 16516 kg/ha when harvested at …

Nebline, April 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Urban Youth Learn About Agriculture at Local Ag Awareness Festivals
Renting Livestock Facilities
Is Sainfoin Right For You?
Wind Energy Seminars Archived on the Web
Backyard Organic Gardens Need Work but Have Increased Benefits
Pre-emergent Herbicide Application Time
Act Early to Control Musk Thistles
Study Shows Transplanted Trees Grow Better Without Grass Nearby
Eat Your Breakfast— Your Body will Thank You!
Easter Egg Tips
Family & Community Education (FCE) Clubs: Presidents’ View—Bonnie’s Bits
FCE News & Events
Household Hints: Housekeeping Organization
Wring Out the Old; Bring in the New: Debunking Some Common Cleaning Practices
Boost Your Child’s Brain Power
Children …

Forage News [2009-04], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Register Early for the 2009 AFGC Conference
• Southern Pasture & Forage Crop Improvement Conference
• Consumer Purchasing Trends Shift in Response to Challenge Economy
• 10 Reasons to Make Forage First in the Ration
• Spring Nitrogen Fertilization of Hayfields in 2009 - Will it Pay?
• By-Product Gypsum: What's It Worth to Forage Producers in Kentucky?
• Rotational Grazing Gets High Marks
• Upcoming events

Mangrove-Exported Nutrient Incorporation By Sessile Coral Reef Invertebrates, Elise F. Granek, Jana E. Compton, Donald L. Phillips

Environmental Science and Management Faculty Publications and Presentations

Coastal mangrove forests were historically considered as a source of organic matter (OM) for adjacent marine systems due to high net primary production; yet recent research suggesting little uptake through the food web because of low nutritional quality, challenges the concept of trophic linkage between mangrove forests and coral reefs. To examine the importance of mangrove forests to coral reef nutrient availability, we examined sessile reef-forming invertebrate consumers including hard corals, sponges, a bivalve mollusc, polychaete annelid and tunicate, and potential sources of OM (decaying mangrove leaves, microalgae, macroalgae, and seagrass) in Bocas del Toro, Panama. Using stable isotope analyses …

The Benefit Of Foliar Applied Copper Fertilizer On Romaine Lettuce Grown In Low Copper Soils Of The Coastal Santa Maria, California, Emmy R. Williams

Master's Theses

The importance of trace elements nutrients to vegetable crops has received more attention in recent years. Accordingly this experiment investigated the benefit of foliar applied copper fertilizer on romaine lettuce (Lactuca Sativa Longifolia) grown in low soil Copper (Cu) concentration in the coastal Santa Maria, California. The various rates of Cu fertilizer applied include untreated (control), 100, 200, 400 and 800 grams per acre of CuSO4.5H 2O, using a one time and a split application methods. Three consecutive individual experimental fields were established starting in late spring through the fall of 2008. The soil texture was a loam in all …

Plant Defense: A Pre-Adaptation For Pollinator Shifts, Justen B. Whittall, Matthew L. Carlson

Biology

No abstract provided.

The Politics Of Genetically Modified Organisms: Global Rules, Local Needs, Ximena Gonzalez

Independent Study Project (ISP) Collection

Biotechnology in regards to agriculture is complex and cannot be judged by a single factor. Exporters of GM foods have their reasons for exportation, and importing countries have their reasons to accept them. There is not a unified reason for acceptance or rejection. Countries may accept or reject for economic, social, or political reasons. Other countries may accept or reject for environmental and/or health reasons. However, there is the inevitable factor of influence. Some countries like the United States, and supernational powers like the European Union are major elements to the decision making process of developing countries. When it comes …

2008 Ksu Insortmil/Usaid Poultry Experiment In West Africa, S. Issa, J. D. Hancock

INTSORMIL Presentations

INTSORMIL (funded by USAID) promotes the use and marketability of sorghum and millet in developing nations around the world.

A key objective is to provide technology transfer that will improve production, storage, marketing, and utilization of sorghum and millet.

An additional objective is to build human capital via student training and collaboration with colleagues in targeted regions of the world.

Justification: We were approached by potential collaborators from the National Institute for Agronomic Research in Niger (INRAN).

Sorghum is the second most produced cereal (after millet) in Niger.

Locally produced sorghum is generally less expensive than imported corn, yet imported …

Salt-Induced And Salt-Suppressed Proteins In Tomato Leaves, Suping Zhou, Roger Sauve, Tara Fish, Theodore W. Thannhauser

Agricultural and Environmental Sciences Faculty Research

Tomato (Solanum lycopersicum cv. Money Maker) seedlings at the two-leaf stage were grown in one-half strength Hoagland solution supplemented with 50 mm NaCl for 4 days, with 100 mm NaCl for 4 days, with 150 mm NaCl for 4 days, and with a final concentration 200 mm NaCl for 2 days. Solutions were refreshed every 2 days for treated and untreated seedlings. Non-treated plants were grown in nonamended one-half strength Hoagland solution. Three biological replicates (BR) were included for treated and control experiments. At the end of treatments, the uppermost three newly expanded leaves from all 12 plants in each …

Nebline, March 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

4-H Embryology: More Than Just a Science Project!
How to Account for Differences in Moisture Content in Commodities
Controlling Winter Annual Brome with Herbicides
Canada Geese Populations are Increasing
Managing Pocket Gophers
Do a “Don’t Do” List!
5 More Main Dishes—Each Using Only 5 Ingredients
Family & Community Education (FCE) Clubs: Presidents’ View—Bonnie’s Bits
FCE News & Events
Household Hints: Removing Soot from Carpet
Tips to Help Parents Talk to Their Kids About Sex and Technology
Local Bagworm Control Initiative
2009 Great Plants Selections
Early Detection is Key to Minimizing Insecticide Use in Home Gardens
Bird House Care Is Important …

Wayne E. Sabbe Arkansas Soil Fertility Studies 2008, Nathan A. Slaton

Arkansas Agricultural Experiment Station Research Series

Rapid technological changes in crop management and production require that the research efforts also be presented in an expeditious manner. The contributions of soil fertility and fertilizers are major production factors in all Arkansas crops. The studies described within will allow producers to compare their practices with the university’s research efforts.

Crop Updates 2009 - Cereals, Jeff Baldock, Doug Edmeades, Mark Seymour, Paul Carmody, Ian Pritchard, Alan Meldrum, Michael Robertson, Roger Lawes, Rob Sands, Peter White, Felicity Byrne, Andrew Bathgate, Kedar Adhikari, Tanveer Khan, Stuart Morgan, Alan Harris, P. Gaur, K. M. H. Siddique, H. Clarke, N. C. Turner, W. Macleod, S. Morgan, Chris Veitch, Tony Leonforte, Kithsiri Jayasena, Geoff J. Thomas, Rob Loughman, Kazue Tanaka, Ravjit Khangura, Mohammad Amjad, Richard Oliver, Dusty Severtson, Peter Mangano, John Botha, Brenda A. Coutts, Manisha Shankar, Kasia Rybak, Michael Baker, Andrea Hills, Shahajahan Miyan, Peter Portmann, Nicole Rice, Robert Henry, Jeff Russell, Blakely H. Paynter, Linda Price, Brenda Shackley, Vicki Scanlan, Darshan Sharma, Christine M. Zaicou-Kunesch

Crop Updates

This session covers twenty seven papers from different authors:

PLENARY

1. Building soil carbon for productivity and implications for carbon accounting, Jeff Baldock, CSIRO Land and Water, Adelaide, SA

2. Fact or Fiction: Who is telling the truth and how to tell the difference, Doug Edmeades, agKnowledge Ltd, Hamilton

3. Four decades of crop sequence trials in Western Australia, Mark Seymour,Department of Agriculture and Food

BREAK CROPS

4. 2008 Break Crops survey Report, Paul Carmody,Development Officer, Department of Agriculture and Food

5. Attitudes of Western Australian wheatbelt growers to ‘Break Crops’, Paul Carmody and Ian …

Crop Updates 2009 - Farming Systems, Derk Bakker, Grey Poulish, Steve Lacy, Svetlana Micic, Peter Mangano, Tony Dore, Alan Lord, Vivien Vanstone, Helen Hunter, Sean Kelly, W. K. Anderson, Gary Lang, David Mccarthy, Ruhi Ferdowsian, Ian Rose, Andrew Van Burgel, David Ferris, Rob Grima, Natalie Hogg, John Davis, Jarrad Martin, Pippa Michael, Robert Belford, Kawsar P. Salam, Roy Murray-Prior, David Bowran, Moin U. Salam, Tim Scanlon, Len Wade, Megan Ryan, Megan Abrahams, Chad Reynolds, Caroline Peek, Dennis Van Gool, Kari-Lee Falconer, Daniel Gardiner, Geoff Anderson, Siva Sivapalan, Tim Mcclelland, James Hunt, Zvi Hochman, Bill Long, Dean Holzworth, Anthony Whitbread, Stephen Van Rees, Peter Devoil, Yvette Oliver, Michael Robertson, Peter Stone

Crop Updates

This session covers nineteen papers from different authors:

Decision support technology

1. The use of high resolution imagery in broad acre cropping, Derk Bakker and Grey Poulish, Department of Agriculture and Food

2. Spraywise decisions – online spray applicatiors planning tool, Steve Lacy, Nufarm Australia Ltd

3. Testing for redlegged earthmite resistance in Western Australia, Svetlana Micic, Peter Mangano, Tony Dore and Alan Lord, Department of Agriculture and Food

4. Screening cereal, canola and pasture cultivars for Root Lesion Nematode (Pratylenchus neglectus), Vivien Vanstone, Helen Hunter and Sean Kelly,Department of Agriculture and Food

Farming Systems Research

5. …

Crop Updates 2009 - Genetically Modified Crops, Nutrition, Soils, & Others, Wallace Cowling, Art Diggle, Caroline Peek, Frank D'Emden, Fiona Evans, Bob French, Rob Grima, Sam Harburg, Abul Hashem, John Holmes, Jeromy Lemon, Peter Newman, Janet Paterson, Steve Penny, Peter Portman, Mark Slatter, Angus Maclennan, Andrew Wells, Bill Bowden, Wayne Pluske, Wen Chen, Geoff Anderson, Ross Brennan, Richard Bell, Hannah Rigby, Deborah Pritchard, David Collins, Katrina Walton, David Allen, Nancy Penney, Michael Robertson, Roger Lawes, Stephen Davies, Chris Gazey, Breanne Best, David Gartner, Quenten Knight, Joel Andrew, Ryan Pearce, F. C. Hoyle, A. Bennett, Rick Llewellyn, Ken Flower, Julian Krieg, Owen Catto, Cindy Parsons

Crop Updates

This session covers fifteen papers from different authors:

1. Performance of Canola Breeders Roundup Ready^® canola hybrid CHYB-166 in 2008, Wallace Cowling, Canola Breeders Western Australia Pty Ltd

2. The implications of GM glyphosate resistant lupin, Art Diggle, Caroline Peek, Frank D’Emden, Fiona Evans, Bob French, Rob Grima, Sam Harburg, Abul Hashem,, John Holmes, Jeremy Lemon, Peter Newman, Janet Paterson, Steve Penny,Department of Agriculture and Food, Peter Portmann, Agriconnect

3. Nufarm Roundup Ready® Canola Systems Trials— 2008 Mark Slatter, Research and Development …

Alfalfa As A Grazing Crop, Bill Payne

Kentucky Alfalfa and Stored Forage Conference

Planning a “Forage Sequence” implies that a stockman provides nutritious and palatable forage crops for grazing for as many days of the year possible. Cool season perennial grasses and legumes give Kentucky forage growers an competitive advantage over those in many other states. That advantage declines during the heat of our summers, however. Providing a solution to our “Summer Slump” is a challenge to stockmen throughout the South. This “Summer Slump” is the result of low yield of cool season forages during the heat and drier conditions of July, August and September. Another factor hindering livestock gains is the fescue …

Alfalfa Hay For Horses: Myths Vs. Reality, Laurie Lawrence

Kentucky Alfalfa and Stored Forage Conference

How Much Hay Does A Horse Need?

A horse owner once described their Quarter Horse gelding as “a hole in the stall that I throw hay into”! This description is certainly accurate… a 1200 lb gelding used for light recreational riding will consume about 700 lbs of hay per month during the winter in Kentucky. If the horse is kept in a place with minimal pasture, yearly hay consumption will be about 4 tons. Restricting hay intake can lead to digestive disturbances and behavior problems, so it is recommended that most horses be allowed access to 1.5 – 2.0 lbs …

Nebline, February 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

13 Fun Ways to Eat More Fruites and Vegetables!
Farmland Leasing Workshop, Feb. 11
Soil Fertility and Phosphorus
Private Pesticide Applicator Certification Opportunities
The Value of Landscaping
Are You Winning the “Fruit & Vegetable Bowl Game”?
5 Main Dishes—Each Using Only 5 Ingredients
Family & Community Education (FCE) Clubs: Presidents’ View—Bonnie’s Bits
FCE News & Events
Beltline FCE Club: 1931–2008
Household Hints: How to Keep Red Clothes from Turning Pink
Small Steps to Health and Wealth
2009 All-America Selections
Starting Tender Perennials Indoors
Garden Guide: Things to Do This Month
Tree Squirrels and Rabbits are Active in Winter
Beginning Beekeeping …

Management Of Merino Weaners For Optimum Production, Patricia Harper, Keith Croker, Danny Roberts

Bulletins 4000 -

Sheep mortality during the first year of life is a large problem on many farms and poses a significant animal welfare issue for Australian agriculture. Post weaning mortality is estimated to cost the Australian sheep industry more than $89 million annually through reduced income, poor productivity and increased management expenses (Sackett et al. 2006).

A high mortality rate among weaners reduces the number of surplus animals available for sale and the number of potential breeding replacements. This, in turn, affects the selection intensity for desirable traits and the flock’s rate of genetic improvement.

Ill thrift and poor growth of weaner …