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Temporal Changes In The Nutrient Content Of Cattle Dung In The Nebraska Sandhills Ecosystem, Amanda Shine, Martha Mamo, Gandura O. Abagandura, Walter Schacht, Jerry Volesky

Department of Agronomy and Horticulture: Faculty Publications

Dung excreted by cattle composes a significant portion of the nutrient inputs in a grazed ecosystem and can have wide-ranging effects on soil properties and vegetation. However, little research has been conducted on the nutrient dynamics of excreted dung in situ that has not been disturbed prior to field sampling. In this study, we analyzed 294 dung pats (1–24 days old) collected from a Nebraska Sandhills meadow to determine water-extractable organic carbon (WEOC), water-extractable nitrogen (WEN), water-extractable phosphorus (WEP), and percent dry matter (DM) changes over time. In addition, we investigated if sample handling - frozen storage – and the …

Does Integrating Crops With Livestock Production Impact Soil Properties And Crop Production?, Lindsey Anderson

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Re-integrating crop and livestock production through cover crop (CC) and corn residue grazing could efficiently utilize resources and ensure profitability while improving environmental quality, but how this integration affects soils and crops is not well understood. We conducted two studies to address this. In the first study, we evaluated the impact of cattle (1.3-3.7 head ha^-1) grazing an oat (Avena sativa L.) CC on soil and crop yields in two adjacent irrigated no-till corn (Zea mays L.)-soybean (Glycine max L.) fields on silt loam soils in eastern Nebraska. Field I was grazed twice, while Field …

Spring Meadow Management Practices: What’S A Rancher To Do?, Tara M. Harms, Jerry D. Volesky, Mitchell B. Stephenson

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

• Subirrigated meadows are a valuable forage resource to ranching operations in the Nebraska Sandhills, being used for both hay production and livestock grazing. • The water table of these meadows is within one meter of the soil surface during the growing season. • In some years, wet conditions hinder meadow utilization, resulting in a buildup of standing dead and litter plant material which can lower forage production.

• Investigate if burning and mowing are effective strategies to remove dead plant material from meadows • Determine if burning or mowing interact with grazing to influence end of season forage production …

Use Of Uav Imagery And Nutrient Analyses For Estimation Of The Spatial And Temporal Contributions Of Cattle Dung To Nutrient Cycling In Grazed Ecosystems, Amanda Shine

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Nutrient inputs from cattle dung are crucial drivers of nutrient cycling processes in grazed ecosystems. These inputs are important both spatially and temporally and are affected by variables such as grazing strategy, water location, and the nutritional profile of forage being grazed. Past research has attempted to map dung deposition patterns in order to more accurately estimate nutrient input, but the large spatial extent of a typical pasture and the tedious nature of identifying and mapping individual dung pats has prohibited the development of a time- and cost-effective methodology. The first objective of this research was to develop and validate …

Grazing Strategy Effects On Utilization, Animal Performance, Aboveground Production, Species Composition, And Soil Properties On Nebraska Sandhills Meadow, Aaron Shropshire

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Ultrahigh stocking density (a.k.a., mob grazing) is proposed as a management tool that results in greater harvest efficiency, animal performance, aboveground plant production, species richness, and soil carbon content. The study objective was to determine grazing treatment, haying, or non-defoliated control effects on forage utilization, aboveground production, animal performance, and soil properties. In 2010, 25 ha of Sandhills meadow were divided into 2 replications of 3 grazing, a hay, and control treatment. Grazing treatments were a 120-pasture rotation with one grazing cycle (mob), a 4-pasture rotation with one cycle (4PR1), and a 4-pasture rotation with two cycles (4PR2) at stocking …

Changes In Corn Residue Quality Throughout The Grazing Period And Effect Of Supplementation Of Calves Grazing Corn Residue, Amanda J. Burken

Department of Animal Science: Dissertations, Theses, and Student Research

Corn residue is an abundant feed source in Nebraska that can be utilized as an alternative winter feed. Calves were backgrounded on corn residue in order to determine gain and estimate forage intake when supplemented with distillers grains (DGS). Calves grazing the non-irrigated field gained more (1.03 kg/calf daily) when compared to those grazing the irrigated field (0.90 kg/calf daily; P < 0.01). In year 1, a quadratic effect for intake of DGS was present (P < 0.01) while year 2 observed a linear effect for increasing level of DGS (P < 0.01). The nutritional quality of corn residue was evaluated over time in order to determine changes in blade/sheath, cob, husk/shank and stem. Minimal changes in DM of the forage components occurred was grain reached 15.5% moisture. Digestibility of the blade/sheath declined linearly over time (P < 0.01) while the husk remained constant (P = 0.40). Cob digestibility decreased quadratically (P < 0.01) throughout the sampling period with few changes once grain reached 15.5% moisture. Differences observed in the digestibility of the blade/sheath were attributed to the effects of weathering. A third set of trials was conducted to evaluate the effects of by-product supplementation of calves grazing irrigated corn residue and supplemented with DGS or continuous access to lick tubs. The DGS treatment gained more (0.62 kg/calf daily) than the lick tub treatment (0.38 kg/calf daily; P < 0.01). Calves offered DGS consumed more supplement as a percentage of BW (0.52%) when compared with calves offered lick tubs (0.36%; P < 0.01) on a DM basis. Calves supplemented with DGS had a higher supplement efficiency (46.3% to 42.9%, DM basis) although no differences were present between treatments (P = 0.49). When analyzed on an OM basis, however, calves offered lick tubs had a numerically higher supplement efficiency (50.4%) in comparison to calves …

Small Pasture Management Guide, James Barnhill, Scott Mckendrick

All Archived Publications

As more people select rural settings for their homes, traditional farms are being divided into small acreage home lots. Many small acreage owners would like to have lush green pastures where they can raise horses, cattle, or sheep. The purpose of this booklet is to provide the educational guidance these owners need to successfully establish and maintain a healthy grazing system.

Crop Updates 2003 - Geraldton, David Stephens, James Fisher, Ian Edwards, Dennis Wise, Andrew Young, Robert Loughman, Ciara Beard, Greg Shea, Blakely Paynter, Roslyn Jettner, Kevin Young, Kevin Walden, Geoff Thomas, Robin Wilson, Iain Barclay, Robyn Mclean, Jenny Garlinge, Bill Lambe, Neil Venn, Peter Clarke, Martin Harries, Bob French, Wayne Parker, Murray Blyth, Peter Norris, Greg Lyle, Katheryn Steadman, Amanda Ellery, Sally C. Peltzer, Kari-Lee Falconer, Russell Speed, Terry Piper, Harmohinder Dhammu, Bindi Webb, Paul Blackwell, Phil Logue, Nigel Moffat, Rohan Ford, Miles Obst, Frances Hoyle, Leanne Schulz, Judith Devenish, Peter Newman, Grant Morrow, Ian Foster, Darshan Sharma, Marnie Thomas, Graham Walton, Hasan Zaheer, Paul Carmody, Mike Clarke, Paul Raper

Crop Updates

This session covers twenty eight papers from different authors

1. Seasonal Outlook: What is in store for 2003, David Stephens, Department of Agriculture

2. Examining The Management Options For Wheat Crops In The Coming Season, James Fisher, Department of Agriculture

3. GMO’s – what do they offer? Ian Edwards, Grain Bio Tech Australia Pty Ltd

4. The Big Gamble – Wheat prices for 2003, Dennis Wise, Profarmer

5. Market outlook for other grains, Andrew Young, General Manager Agricorp

6. Stripe rust – where to now for the WA wheat industry? Robert Loughman, Ciara Beard and Greg Shea, Department of Agriculture

7. Baudin …

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Crop Updates 2002 - Geraldton, Steve Penny Jr, Robin Wilson, Iian Barclay, Robyn Mclean, Robert Loughman, Jenny Garlinge, Bill Lambe, Neil Venn, Peter Clarke, Wal Anderson, Raffaele De Cima, James Bee, Darshan Sharma, Sheena Lyon, Melaine Kupsch, Mohammad Amjad, Pam Burgess, Veronika Reck, Brenda Shackley, Ray Tugwell, Bindi Webb, Robert Park, Daya Patabendige, Phil Michael, Debbie Thackray, Jenny Hawkes, Roger Jones, David Stephens, Bob French, Laurie Wahlsten, Glen Riethmuller, M. Bolland, P. White, T. Khan, Kevin Walden, Ravjit Khangura, Martin J. Barbetti, Graham Walton, Françoise Berlandier, Paul Carmody, Christiaan Valentine, Roy Latter, Keith Devenish, Bill Bowden, Michael O'Connell, Chris Gazey, David Gartner, Caroline Peek, David Rogers, Greg Shea, George Yan, Alexandra Douglas, Sally Peltzer, Paul Matson, David Minkey, Clinton Revell, Giles Glasson, Dean Thomas, Aik Cheam, Siew Lee, Mike Clarke, Peter Newman, Glenn Adam

Crop Updates

This session covers twenty seven papers from different authors:

1. Taking the Why out of Wyalkatchem – the new widely adapted wheat variety, Steve Penny Jr, Department of Agriculture

2. Future wheat varieties, Robin Wilson, Iain Barclay,Robyn McLean, Robert Loughman, Jenny Garlinge, Bill Lambe, Neil Venn and Peter Clarke

Department of Agriculture

3. Maximising wheat variety performance through agronomic management, Wal Anderson, Raffaele Del Cima, James Bee, Darshan Sharma, Sheena Lyon, Melaine Kupsch, Mohammad Amjad, Pam Burgess, Veronika Reck, Brenda Shackley, Ray Tugwell, Bindi Webb and Steve Penny Jr

Department of Agriculture

4. Cereal rust update 2002 – …

Crop Updates 2002 - Weeds, Vanessa Stewart, Peter Newman, Glenn Adam, Andrew Blake, Natalie Lauritsen, Sally Peltzer, Paul Matson, Nerys Wilkins, David Minkey, Glen Riethmuller, Tim Cusack, Kathryn Steadman, Pippa Michael, Paul Blackwell, Dave Brindal, Michael Walsh, Wayne Parker, Clinton Revell, Giles Glasson, Dean Thomas, Alister Draper, Bill Roy, Marta Monjardin, David Pannell, Stephen Powles, Robert Barrett-Lennard, Martin Bent, Paul Neve, Art Diggle, Patrick Smith, Mechelle Owen, Abul Hashem, Christopher Preston, Tracey Gillam, Rick Llewellyn, Richard Quinlan, Aik Cheam, Siew Lee, Mike Clarke, David Nicholson, Harmoohinder S. Dhammu, Terry Piper, Chad Sayer, Ian Rose, Andrew Blake, Jerome Critch, Gordon R. Cumming, Sam Taylor, John Moore, Rosyln Jettner, Stuart Bee, Lionel Martin, Keith Devenish, Felicity Flugge, Amir Abadi, Duncan Peter, Stuart Mcalpine

Crop Updates

This session covers fifty eight papers from different authors:

1. INTRODUCTION Vanessa Stewart, DEPARTMENT OF AGRICULTURE

INTEGRATED WEED MANAGEMENT

IWM system studies / demonstration sites

2. Major outcomes from IWM demonstration sites, Alexandra Douglas Department of Agriculture

3. Integrated weed management: Katanning, Alexandra Douglas Department of Agriculture

4. Integrated weed management: Merredin, Vanessa Stewart Department of Agriculture

5. Long term resistance site: Get ryegrass numbers low and keep them low! Peter Newman and Glen Adams Department of Agriculture

6. Using pastures to manage ryegrass populations, Andrew Blake and Natalie Lauritsen Department of Agriculture

Weed biology and competition

7. …

Crop Updates 2002 - Farming Systems, Peter Metcalf, Mike Ewing, Roy Latta, Keith Devenish, Diana Fedorenko, Clayton Butterly, Chantelle Butterly, Kim Diamond, Neil Diamond, Stuart Mcalpine, Bill Bowden, Jessica Johns, Terry Piper, David Bowran, Robert Beard, Phil Ward, Dominie Wright, Nichole Burges, Roger Jones, Danae Harman, Greg Shea, George Yan, David Tennant, David Hall, Anyou Liu, Clinton Revell, Candy Hudson, Andrew Blake, Natalie Lauritsen, John Fosu-Nyarko, Roger Jones, Lisa Smith, Mike Jones, Geoff Dwyer, Bill Bowden, Michael O'Connell, Chris Gazey, David Gartner, Amanda Miller, Richard W. Bell, K. Frost, Mike Wong, Ross Brennan, N. J. Blake, G. Mconnell, D. Patabendige, N. Venn, Derk Bakker, Greg Hamilton, Dave Houlbrooke, Cliff Spann, Paul Blackwell, Bindi Webb, G. Lyle, K. Wittwer, Perry Dolling, Senthold Asseng, Ian Fillery, Michael Robertson, Caroline Peek, David Rogers, Peter Portman, Jeff Russell, Greg Shea, Ben Henderson, Ross Kingwell, Tresslyn Walmsley, Jean Galloway, Debbie Thackray, Moin Salam, Art Diggle, William J. Macleod, Jenny Hawkes

Crop Updates

This session covers forty one papers from different authors:

INTRODUCTION

1. Future Farming Systems session for Crop Updates 2002 Peter Metcalf, FARMING SYSTEMS SUBPROGRAM MANAGER GRAINS PROGRAM Department of Agriculture

2. Perennial pastures in annual cropping systems: Lucerne and beyond, the ‘Big Picture’, Mike Ewing, Deputy CEO CRC for Plant-based Management of Dryland Salinity, Department of Agriculture

3. Perennial pastures in annual cropping systems: lucerne and beyond, Roy Latta and Keith Devenish, Department of Agriculture

4. Establishing Lucerne with a cover crop, Diana Fedorenko¹, Clayton Butterly¹, Chantelle Butterly¹, Kim and Neil Diamond^{2 …}

The Relations Of Vegetative Composition And Cattle Grazing On Nebraska Range Land, T. E. Brinegar, F. D. Keim

Historical Research Bulletins of the Nebraska Agricultural Experiment Station

The objectives of the studies reported in this paper were: (1) to obtain an analysis of the vegetation in tall and short grass range lands, (2) to observe the activities of cattle on the range, and (3) to determine the effects of grazing upon vegetation.

Nebraska Pastures: Seeding And Management, A. L. Frolik, E. F. Frolik

Nebraska Agricultural Experiment Station: Historical Circulars

Pastures are an important source of feed in the livestock industry. Approximately 70 per cent of the income from Nebraska farms is from the sale of livestock and livestock products, and for this reason consideration should be given to the maintenance of good pastures. Poor pastures, like other poor crops, are expensive. Good grass cover is also an effective means of conserving the soil resources.