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Articles 11971 - 12000 of 14408
Full-Text Articles in Soil Science
Platte County Test Hole Logs, Raymond R. Burchett, Scott E. Summerside
Platte County Test Hole Logs, Raymond R. Burchett, Scott E. Summerside
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Yuna Farm Improvement Group - Conservation Farm Planning Manual, Mike Clarke, Cecilia Mcconnell, Nancye Gannaway
Yuna Farm Improvement Group - Conservation Farm Planning Manual, Mike Clarke, Cecilia Mcconnell, Nancye Gannaway
Natural resources published reports
A landcare group formed on Tuesday, 30 June 1998 due to growing concern about land degradation. The main interests and objectives of the group where discuss and were outlined as follows:
1. Wind Erosion
2. Soil Acidity
3. Soil Degradation
4. Remnant Vegetation Decline
5. Tree Placement and Survival
6. Oil Mallees
7. Water Erosion
8. Non Wetting Soils
9. Salinity
10. Waterlogging
The first step toward addressing these issues was to organise two workshops with Mike Clarke, Cecilia McConnell and Nancye Gannaway from Agriculture Western Australia. The first workshop was held on the 4/8/98 and the second on the …
The Use Of Red Mud/Gypsum To Reduce Water Pollution From Sandy Soils Used For Vegetable Production, Ian Mcpharlin, W. J. Robertson, R. C. Jeffery
The Use Of Red Mud/Gypsum To Reduce Water Pollution From Sandy Soils Used For Vegetable Production, Ian Mcpharlin, W. J. Robertson, R. C. Jeffery
Research Reports
An important domestic and export vegetable industry is located on the sands of the Swan Coastal Plain (SCP) in Western Australia. The total value of the vegetable industry on the SCP was estimated at $90M in 1996/7 or about 50% of the total value of the industry. This vegetable production has been located on good quality sands such as the Spearwood and yellow Karrakatta sands, close to the coast, since the 1950s. However in recent years competition for this land for urban and industrial use has forced vegetable production onto soils with poorer water and phosphorus retention capacity such as …
Inventory Of Sub-Catchments Within The Albany Eastern Hinterland, B Radys
Inventory Of Sub-Catchments Within The Albany Eastern Hinterland, B Radys
Resource management technical reports
The release of the "Salinity Action Plan for Western Australia' in December 996 highlighted the need for catchment scale planning and coordinated actions to reverse salinity trends.
A separate report has been produced for each major catchment area. Each report contains and inventory of all sub-catchments, with information on area, degradation risks and group activities with each catchment.
Phosphorus In The Landscape: Diffuse Sources To Surface Waters. Land And Water Resources Research And Development Corporation. Occasional Paper 16/98, Richard Davis, Anne Hamblin, E O'Loughlin, Nic Austin, R Banens, P Cornish, P Hairsin, M Mcculloch, Phil Moody, J Olley, B Prove, I Smalls, David Weaver
Phosphorus In The Landscape: Diffuse Sources To Surface Waters. Land And Water Resources Research And Development Corporation. Occasional Paper 16/98, Richard Davis, Anne Hamblin, E O'Loughlin, Nic Austin, R Banens, P Cornish, P Hairsin, M Mcculloch, Phil Moody, J Olley, B Prove, I Smalls, David Weaver
All other publications
The National Eutrophication Management Program (NEMP) and Environment Australia convened a workshop to develop a coherent overview of the sources and transport of diffuse phosphorus in Australian catchments based on the latest knowledge. The Land and Water Resources Research and Development Corporation (LWRRDC) and the Murray–Darling Basin Commission (MDBC) jointly fund NEMP. A select group of scientists attended the workshop and developed a coherent statement about phosphorus sources and transport in Australian catchments. The group did not extend this statement to include recommended management practices. This paper reports the findings from the workshop. State governments have developed algal and nutrient …
Putting Land Resource Information Into Perspective. Interpreting Land Resource And Capability Information To Assess The Impacts And Management Needs Of Different Land Uses And To Assist Strategic Planning, Land Assessment Pty Ltd, Agriculture Western Australia
Putting Land Resource Information Into Perspective. Interpreting Land Resource And Capability Information To Assess The Impacts And Management Needs Of Different Land Uses And To Assist Strategic Planning, Land Assessment Pty Ltd, Agriculture Western Australia
Natural resources published reports
These notes were prepared by Martin Wells from Land Assessment Pty Ltd in June 1997 to assist in the delivery of this training course. The objective of the course is to provide land use planning practitioners with a working understanding of soil-landscape mapping and land capability assessment activities, and of their practical applications in land use planning.
Who Is This Course For?
Land use planners
* not only professional planners
* but all involved in making decisions on how land is used
* involves many government or semi-government bodies
* and also immediate land use decision makers, farmers and their …
The Migration Of Arsenic And Lead In Surface Sediments At Three Kids Mine Henderson, Nevada, Douglas Brian Sims
The Migration Of Arsenic And Lead In Surface Sediments At Three Kids Mine Henderson, Nevada, Douglas Brian Sims
Publications (WR)
This study focused on the distribution of arsenic and lead in surface sediments at Three Kids Mine in Henderson, Nevada. The mine site encompasses approximately 470 acres of desert and is situated above two developing communities (Lake Las Vegas and Calico Ridge) and the Las Vegas Valley's water source (Lake Mead). Transport of arsenic and lead appears to have occurred within a limited range in both the eastern and western washes on the eastern and western sides of Three Kids Mine. Concentrations of arsenic range between 20 mg/kg (ppm) and 1130 mg/kg and between 20 mg/kg and 8400 mg/kg for …
Salinity And Hydrology Of The Mills Lake Catchment, R Ferdowsian, A T. Ryder
Salinity And Hydrology Of The Mills Lake Catchment, R Ferdowsian, A T. Ryder
Resource management technical reports
The Mills Lake Catchment is located north of the Ongerup-Jerramungup Road, 35 km west of Jerramungup and 10 km north-east of Ongerup. It covers about 23,800 ha of agricultural land that is more than 90% cleared and predominantly cropped. The average annual rainfall of the catchment is about 370 mm. Many low-lying parts of the study area have become salt-affected during recent years. The extent of soil salinity is growing rapidly and it is feared that, without any treatment, more land will become salt-affected.
The Salinity And Hydrology Of Cranbrook, R Ferdowsian, A T. Ryder
The Salinity And Hydrology Of Cranbrook, R Ferdowsian, A T. Ryder
Resource management technical reports
The study area covers the Cranbrook townsite and two catchments that affect it. The Cranbrook Town is located 85 km north-north-west of Albany and it has a population of 320 people (1190 in the Shire; ABS Census 1991).
Cranbrook is experiencing salinity problems. Saline groundwater levels are close to the soil surface and cause deterioration of buildings, roads, infrastructure, death of trees and scalding of land including the sporting ground.
The objective of this study was to define the present salinity status of the Cranbrook Town and develop management strategies to overcome or reduce the severity of salinity.
Field Trip Guide (For The Nebraska Well Drillers Association) Northeastern Nebraska Geology, Sue Olafsen Lackey, Robert F. Diffendal Jr., Raymond R. Burchett, Duane A. Eversoll, Rodney J. Tremblay
Field Trip Guide (For The Nebraska Well Drillers Association) Northeastern Nebraska Geology, Sue Olafsen Lackey, Robert F. Diffendal Jr., Raymond R. Burchett, Duane A. Eversoll, Rodney J. Tremblay
Conservation and Survey Division: Faculty and Staff Publications
Field trip guide, for the Nebraska Well Drillers Association, covering northeastern Nebraska geology from September 1997.
Geology Of Niobrara State Park, Knox County, Nebraska, And Adjacent Areas, With A Brief History Of The Park, Gavins Point Dam, And Lewis And Clark Lake, Charles A. Flowerday, Robert F. Diffendal Jr., R. L. Skelly, F. G. Ethridge, D. A. Eversoll, David K. Watkins, B. E. Bailey
Geology Of Niobrara State Park, Knox County, Nebraska, And Adjacent Areas, With A Brief History Of The Park, Gavins Point Dam, And Lewis And Clark Lake, Charles A. Flowerday, Robert F. Diffendal Jr., R. L. Skelly, F. G. Ethridge, D. A. Eversoll, David K. Watkins, B. E. Bailey
Conservation and Survey Division: Faculty and Staff Publications
Location
Niobrara State Park is located in northwestern Knox County, Nebraska, just west of the town of Niobrara and on the west side of the Niobrara River. The present park was opened in the summer of 1987. Mostly north of Nebraska Highway 12, the site is hilly with bluffs overlooking the Missouri and Niobrara rivers. Excellent facilities include paved roads, cabins, an outdoor swimming pooi, hiking trails, picnic and camping sites, horseback riding trails, playgrounds, restrooms, a group lodge, and an interpretive shelter. Many vantage points in the park have beautiful views of the lower Niobrara Valley and the middle …
Settlements Due To Arid Collapsible Soils, Heather L. Devine
Settlements Due To Arid Collapsible Soils, Heather L. Devine
Dissertations and Theses
The arid alluvial deposits common to the western United States frequently undergo moderate to severe collapse when wetted that can threaten or destroy the stability of structures that are founded on such soils. Additionally, in some areas collapse has been known to occur due to overburden stresses alone. As development expands in these areas a method to estimate the degree of this collapse is essential.
Current settlement methods are reviewed and evaluated as they apply to collapsible soils, providing a basis for the development of a proposed settlement method for determining collapse. To aid in the determining the basis for …
Native Vegetation On Farms Survey 1996 : A Survey Of Farmers Attitudes To Native Vegetation And Landcare In The Wheatbelt Of Western Australia, Suzanne Jenkins
Native Vegetation On Farms Survey 1996 : A Survey Of Farmers Attitudes To Native Vegetation And Landcare In The Wheatbelt Of Western Australia, Suzanne Jenkins
Resource management technical reports
The Native Vegetation on Farms survey 1996 was performed to assess the attitudes of farmers to a number of issues related to existing native vegetation on farmland, the replanting of vegetation on farms and land degradation. Research has shown that it is important for a proportion of all farmland to have some native vegetation for ecological stability, to regulate hydrological processes and for long-term sustainability of farm production.
Bulletin 4328 - Soil Testing For Vegetable Production On The Coastal Plain, Ian Mcpharlin, Murray Hegney
Bulletin 4328 - Soil Testing For Vegetable Production On The Coastal Plain, Ian Mcpharlin, Murray Hegney
Bulletins 4000 -
Vegetable growers need to use fertiliser efficiently. Under-fertilising can reduce yield, which results in economic losses. Over-fertilising can reduce yield and contribute to nitrogen and phosphorus pollution of ground and surface waters. Concerns have been expressed that fertilisers applied to horticultural crops contribute to the phosphorus pollution of the rivers and estuaries of the west and south coast of Western Australia.
Soil testing is a technique that can be used by growers to make better fertiliser decisions. When soil tests show high levels of nutrients, growers can reduce fertiliser application for the current crop. This should enable growers to maintain …
Identification Of Belowground Woody Structures Using Molecular Biomarkers, Benny R. Bobowski
Identification Of Belowground Woody Structures Using Molecular Biomarkers, Benny R. Bobowski
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Within the last two decades substantial progress has been made in understanding seed bank dynamics and the contribution of the soil seed bank to a post-disturbance plant community. There has been relatively little progress, however, in understanding perennial bud bank dynamics and the contribution of the soil bud bank to secondary succession. This lack of information is due primarily to the inability to reliably identify roots, rhizomes, and lignotubers that lie dormant beneath the soil surface. This scientific investigation, therefore, addressed the issue of identification of belowground woody structures.
The first objective was to develop a methodology that utilizes molecular …
A Slow-Release Nitrogen Fertilizer: Ammonium-Loaded Clinoptilolite, T. Scott Perrin
A Slow-Release Nitrogen Fertilizer: Ammonium-Loaded Clinoptilolite, T. Scott Perrin
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Crops grown in sandy soils require frequent irrigation. As a result, nitrogen (N) fertilizers. such as ammonium sulfate((NH4)2SO4), are leached from the rooting zone of crops. This loss of N increases N fertilizer use and the potential for nitrate (NO3-) contamination of water. Ammonium-loaded clinoptilolite (NH4+-Cp) may reduce this N leaching, increase N fertilizer use-efficiency, and prevent NO3- contamination of water while sustaining normal crop growth.
The potential of NH4+-Cp as a N fertilizer was assessed in three leaching experiments without plants and …
Distribution Of Heavy Metals And Trace Elements In Soils Of Southwest Oregon, Rafiqul Alam Khandoker
Distribution Of Heavy Metals And Trace Elements In Soils Of Southwest Oregon, Rafiqul Alam Khandoker
Dissertations and Theses
Soil samples from 118 sites on 71 geologic units in southwest Oregon were collected and analyzed to determine the background concentrations of metals in soils of the region. Sites were chosen in areas that were relatively undisturbed by human activities. The U.S. Environmental Protection Agency approved total-recoverable method was used to recover metals from samples for analysis. The twenty six metals analyzed were: Ag, AI, As, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, La, Li, Mg, Mn, Mo, Na, Ni, Pb, Sb, Se, Tl, V and Zn.
The Klamath Mountains followed by the Coast Range contain the …
Evaluation Of Deep, Open Drains In The North Stirling Area, R Ferdowsian, A T. Ryder, J Kelly
Evaluation Of Deep, Open Drains In The North Stirling Area, R Ferdowsian, A T. Ryder, J Kelly
Resource management technical reports
No abstract provided.
Arkansas Soil Fertility Studies 1996, Wayne E. Sabbe
Arkansas Soil Fertility Studies 1996, Wayne E. Sabbe
Arkansas Agricultural Experiment Station Research Series
No abstract provided.
The Effects Of Organic Matter Rich Topsoil On The Germination Growth And Metal Uptake Of Corn (Zea Mays) Grown In Flue Dust Contaminated Soil, Christopher Allen Impellitteri
The Effects Of Organic Matter Rich Topsoil On The Germination Growth And Metal Uptake Of Corn (Zea Mays) Grown In Flue Dust Contaminated Soil, Christopher Allen Impellitteri
OES Theses and Dissertations
The large biomass of corn (Zea mays) and promising results from a previous experiment (Chlopecka and Adriano, 1995) concerning metal uptake by corn indicate that corn may be a good candidate for phytoremediation of trace metal contaminated soil. Appling soil (acid, thermic, typic paleudult) was treated with increasing levels of a metal rich flue dust based on Zn concentration (0, 150, 300, 600, 1200, and 2400 mg/kg). Four replicates at each Zn treatment level were either limed to pH 6.3-6.5 and covered with a two inch thick layer of organic matter rich topsoil (OM), unlimed and covered with …
Salinity And Hydrology Of The Wamballup Swamp Catchment, R Ferdowsian, A T. Ryder
Salinity And Hydrology Of The Wamballup Swamp Catchment, R Ferdowsian, A T. Ryder
Resource management technical reports
No abstract provided.
Bulletin 4333 - Furrow Sowing On Water Repellent Soils, Paul Blackwell, Grant Morrow
Bulletin 4333 - Furrow Sowing On Water Repellent Soils, Paul Blackwell, Grant Morrow
Bulletins 4000 -
This Bulletin discusses the benefits that furrow sowing brings to crop growth and production on water repellent sand, based on research and farm observations in Western Australian. By understanding the benefits and risks of several key processes, producers can better evaluate the potential role of furrow sowing in combating water repellency. This is true whether one is using direct drilling, no-till (narrow points or discs) or zero till (single, double or triple disc openers) methods.
What Leading Alfalfa Producers Do To Produce Quality Hay, Jimmy C. Henning, Garry D. Lacefield, Buddy Sims
What Leading Alfalfa Producers Do To Produce Quality Hay, Jimmy C. Henning, Garry D. Lacefield, Buddy Sims
Kentucky Alfalfa and Stored Forage Conference
Alfalfa is the highest quality forage legume crop grown in Kentucky and is the number one cash hay crop. Hay raised by Kentucky farmers has been recognized for its quality at local, state (state fair and Kentucky Alfalfa Conference), and national (American Forage and Grassland Council) hay contests. The testing records of the Kentucky Department of Agriculture also document the high quality alfalfa hay of Kentucky. However, little has been written about the farm practices used to produce high quality alfalfa hay in Kentucky. The current practices of top hay growers may be helpful in defining the options available to …
Grazing Alfalfa In Tennessee: Experiences And Opportunities, Gary Bates
Grazing Alfalfa In Tennessee: Experiences And Opportunities, Gary Bates
Kentucky Alfalfa and Stored Forage Conference
Animal agriculture in the southeastern U.S. is based on forages. This area has the advantage over all other sections of the nation in forage production. From Kentucky to south Florida, with a little planning forage can be grown almost 12 months a year. Forage programs in Tennessee and Kentucky are based primarily around cool-season grasses such as tall fescue and orchardgrass. These grasses grow over a long portion of the year. In fact, producers have to deal with excess forage production during the spring and fall (Fig. 1). The quality and quantity of forage during these times of the year …
Grazing Alfalfa In Lincoln County, Dan Grigson
Grazing Alfalfa In Lincoln County, Dan Grigson
Kentucky Alfalfa and Stored Forage Conference
Alfalfa grazing is becoming an important practice for our county's large livestock enterprise. Both dairy and beef producers use alfalfa grazing in various parts of their feeding operations. Lincoln County farmers have a reputation for being good forage producers and have over the years produced good yields and good quality alfalfa. Most producers realize that good forage leads to better profits for their livestock enterprises. That's very important to us as the livestock business generates over $21 million in cash receipts annually.
Alfalfa Seed Production In The Western U.S., Garry D. Lacefield
Alfalfa Seed Production In The Western U.S., Garry D. Lacefield
Kentucky Alfalfa and Stored Forage Conference
Alfalfa is the primary forage for the dairy industry in the United States and provides a majority of the nutrients and energy needs for other classes of livestock including beef cattle, horses and sheep.
In order to maximize forage yield, quality and persistence, one should start with high quality seed. Seed must be free of noxious weeds, have a purity higher than 99.5 percent, a germination of 90 percent or higher and true to the variety stated.
Over 80% of the alfalfa seed was grown in the Great Plains and Rocky Mountain states prior to 1948. This was mostly uncertified, …
Do's And Don'ts Of Alfalfa Round Baled Silage, Michael Collins
Do's And Don'ts Of Alfalfa Round Baled Silage, Michael Collins
Kentucky Alfalfa and Stored Forage Conference
Round baled silage provides an option for outside storage of round bales that protects them from weathering. With shorter field exposure times, silage can dramatically increase forage quality compared with hay. Harvest problems caused by wet weather and/or poor drying conditions during spring and for the freeze-down harvest during autumn could be alleviated by incorporating silage into the harvest system.
Alfalfa Hay: Quality Makes The Difference, Garry D. Lacefield, Jimmy C. Henning
Alfalfa Hay: Quality Makes The Difference, Garry D. Lacefield, Jimmy C. Henning
Kentucky Alfalfa and Stored Forage Conference
Alfalfa "Queen of the Forage Crops" is one of the most important forage legumes grown in the U.S. It can be grown over a wide range of soil and climatic conditions, it has the highest yield potential and the highest feeding values of all adapted perennial forage legumes. Alfalfa is a versatile crop which can be used for pasture, hay, silage, green-chop, soil improvements and · human consumption (sprouts, etc.).
A Solution To Some Spring-Seeded Alfalfa Problems, Paul C. Vincelli
A Solution To Some Spring-Seeded Alfalfa Problems, Paul C. Vincelli
Kentucky Alfalfa and Stored Forage Conference
One of the most important assignments I received when I assumed this position in 1990 was to address the question, "What is the cause of seeding failure when alfalfa is spring-seeded into soils that remain wet after seeding?" Six years of laboratory and field work have finally borne fruit. Based on our research, we can confidently present Kentucky alfalfa producers with three conclusions and a recommendation.
Manure On Alfalfa: Why, When, And How Much?, Monroe Rasnake
Manure On Alfalfa: Why, When, And How Much?, Monroe Rasnake
Kentucky Alfalfa and Stored Forage Conference
Manure is an excellent source of nutrients for growing crops. Its' value has been recognized for thousands of years. Before the development of chemical fertilizers, it served as the primary source of nutrients. It has decreased in importance as a nutrient source in this century and in some cases has become a disposal problem. This has led many farmers to consider using it on legume crops such as alfalfa that don't need to have nitrogen added, but will utilize it and other . nutrients in relatively large amounts. The first question to be considered, then, is why apply manure to …