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Articles 8521 - 8550 of 9404
Full-Text Articles in Entire DC Network
Alfalfa Establishment, Garry D. Lacefield
Alfalfa Establishment, Garry D. Lacefield
Kentucky Alfalfa and Stored Forage Conference
Alfalfa "Queen of the Forage Crops" is the most important forage legume grown in the United States. It is grown over a wide range of soil and climatic conditions. Alfalfa has the highest yield potential and the highest feeding value of all adapted perennial forage legumes. It is a versatile crop which can be used for pasture, hay, silage, green-chop, soil improvements and soil conservation. As a result. of this crops many merits; especially yield, quality and versatile use, it can be used successfully in many animal feeding programs.
Soil And Fertility Considerations For Growing Alfalfa, Monroe Rasnake
Soil And Fertility Considerations For Growing Alfalfa, Monroe Rasnake
Kentucky Alfalfa and Stored Forage Conference
Alfalfa is a widely adapted crop which is grown across the United states and in many other counties. However, it is very sensitive to many soil and fertility factors which can limit its productivity. It is important to understand these factors in order to be a successful alfalfa producer.
Evaluation Of New Pasture Legume Species In Terms Of Summer Feeding Value And Effects On Wool Production., Tess Casson
Evaluation Of New Pasture Legume Species In Terms Of Summer Feeding Value And Effects On Wool Production., Tess Casson
Experimental Summaries - Plant Research
Trial 86KA71
Location: Private farm 'Monalta' - south-east of Katanning.
As outlined by S. Flecker in the 1987 summary for this trial, the expected result of the research is that the feeding value of burr medic pastures will be greater than the feeding value of sub. clover and barrel medic pasture, particularly over the dry summer/autumn period.
Soil-Plant Organochlorine Pesticide Research., Tony Albertsen
Soil-Plant Organochlorine Pesticide Research., Tony Albertsen
Experimental Summaries - Plant Research
88MA42, 88BU18, 88BU21, 88BU22, 88BY16, 88AL20, 88AL21, 88AL22, 88BY9, 88 BY1, 88BY11, 88BY12, 88BY13, 88BY14, 88BY15, 88BU19, 88BU20, 88MA43, 88MA44, 88MA45, 88MA46, 86V1, 86V2, 84V2.
Locations: Albany, Bunbury, Busselton and Manjimup.
In 1988 a research programme was initiated to help define the relationship between soil and plant contamination. Two main experiments were established 1) Pasture contamination in annual and perennial grazed swards. 2) Plant species contamination in a wider range of pasture and crops.
Geology, Paleontology And Biostratigraphy Of Western Kansas: Articles In Honor Of Myrl V. Walker, Michael E. Nelson
Geology, Paleontology And Biostratigraphy Of Western Kansas: Articles In Honor Of Myrl V. Walker, Michael E. Nelson
Fort Hays Studies Series
This work is a compilation of articles based on the geosciences of western Kansas.
Evaluating Statistical Techniques For Predicting And Interpreting Forplan Results, United States Department Of Agriculture, Forest Service
Evaluating Statistical Techniques For Predicting And Interpreting Forplan Results, United States Department Of Agriculture, Forest Service
Forestry
Two approaches using multiple linear regression for analyzing the effects of management constraints on an objective function in FORPLAN were tested on three National Forests. The two approaches, ordinary least squares regression and ordinary least squares using principal components, provide some degree of success in predicting objective function values, but very little information for interpreting the effects of the constraints on objective function values.
Drought Management: The Role Of Near- Real Time Weather Data, Donald A. Wilhite, Kenneth G. Hubbard
Drought Management: The Role Of Near- Real Time Weather Data, Donald A. Wilhite, Kenneth G. Hubbard
National Drought Mitigation Center: Faculty Publications
The ability to collect weather data in near-real time has improved because of technological advances, enabling weather data users to obtain more weather data over wider areas, and in a more timely fashion. The number of near-real time climate networks is increasing as new applications are found for climate data. More than fifteen states in the United States have established automated weather station networks. This paper presents an overview of recent developments in automated weather data collection in the United States and gives a detailed description of the network in Nebraska.
Near-real time weather data has many applications in agricultural …
Murex Medic Trials And Redlegged Earthmite Impacts, D. Gillespie
Murex Medic Trials And Redlegged Earthmite Impacts, D. Gillespie
Experimental Summaries - Plant Research
1. Selection and development of early maturing varieties of murex medic.
Small plot trials were established at six medium and low rainfall sites in autumn 1988. All were hand sown 2Mx3Mplots sown at 50 kg/ha except for the Merredin site which was drill sown at 10 kg/ha.
Locations: Badgebup, Gabalong, Kellerberrin, Merredin, North Quairading, Pingrup.
2. Mid season murex medic evaluation.
Locations: Avondale, Cranbrook, Darkan and New Norcia
This programme aims to identify superior varieties to Zodiac which was released in 1988.
3. Management of murex medic.
Locations: Arthur River
After three years of drought the large grazing trial at …
The Nebraska Agricultural Climate Situation Committee, R. E. Neild, K. G. Hubbard, Donald A. Wilhite
The Nebraska Agricultural Climate Situation Committee, R. E. Neild, K. G. Hubbard, Donald A. Wilhite
National Drought Mitigation Center: Faculty Publications
The Nebraska Agricultural Climate Situation Committee consisting of an interdisciplinary group of extension specialists provides up-to-date information and advice on seasonal changes in crop/ weather conditions. The committee meets each Monday during the growing season to review:
1. Maps and tabular data developed by a computer program CIS /Crop Weather Information System/ that is linked to a network of weather stations and computer terminals in county agent offices.
2. Insect, plant disease and weed surveys.
3. Weekly weather and crop reports from the State/Federal System.
4. Weather outlooks from the National Weather Service.
5. Climate probabilities.
Situation reports and advisories …
Mating Behaviour And Barriers To Hybridization In The Cave Beetle Of The Speonomus Delarouzeei Complex (Coleoptera, Catopidae, Bathysciinae), Lysiane Juberthie-Jupeau
Mating Behaviour And Barriers To Hybridization In The Cave Beetle Of The Speonomus Delarouzeei Complex (Coleoptera, Catopidae, Bathysciinae), Lysiane Juberthie-Jupeau
International Journal of Speleology
The complex Speonomus delarouzeei combines 6 species which were previously synonymized. Using behavioural data, based on 12 populations, the author assesses the validity of 4 species and points out the occurrence of 2 species as yet undescribed. Constant and important differences during the mating appear between these different species. They concern the number of behavioural steps, the duration, the number of clappings of antennae, the abdominal male movements and the rubbing of female abdomen. The results of crossing experiments between different species indicate a prezygotic reproductive isolation with atypical matings and no sperm deposit. Between the populations of S. delarouzeei …
Evolutionary Genetics And Morphometrics Of A Cave Crayfish Population From Chiapas (Mexico), Valerio Sbordoni, Giuliana Allegrucci, Fabiola Baldari, Donatella Cesaroni
Evolutionary Genetics And Morphometrics Of A Cave Crayfish Population From Chiapas (Mexico), Valerio Sbordoni, Giuliana Allegrucci, Fabiola Baldari, Donatella Cesaroni
International Journal of Speleology
The recently explored Cueva de Los Camarones, in the remote village of Constitucion, Chiapas, Mexico, houses a unique highly variable population of Procambarus crayfish (Crustacea, Decapoda). Morphologically, a more or less clinal variation is revealed at several features such as the degree of rudimentation in both pigmentation and eye, and the elongation of body and appendages. Extremes are quite different, ranging from typical dark, thick, eyed individuals to light, elongated, microphtalmic phenotypes. Evolutionary relationships among individuals were investigated electrophoretically (25 structural gene loci) and morphometrically (12 characters) by means of multivariate analyses. Results from analysis of individual allozymic multilocus profiles …
Pseudosinella Revisited (Collembola, Entomobryinae), Kenneth Christiansen
Pseudosinella Revisited (Collembola, Entomobryinae), Kenneth Christiansen
International Journal of Speleology
Eight controversies are active in the study of macroevolution. These are: 1) the meaning of the term macroevolution, 2) the role of chance, 3) the role of stasis and gradualism, 4) whether significant change is Iimited to speciation events, 5) the environmental conditions where macroevolutionary change occurs, 6) whether Neodarwinian mechanisms are adequate to explain change, 7) the existence and nature of hierarchical evolutìonary processes, and 8) Darwin’s views about all this. After a brief examination of each of these issues we used the extensive data available for 9 species of European and Nearctic cave Pseudosinella to examine the third, …
Paleoenvironment And Speciation In The Cave Beetle Complex Speonomus Delarouzeei (Coleoptera, Bathysciinae), Christian Juberthie
Paleoenvironment And Speciation In The Cave Beetle Complex Speonomus Delarouzeei (Coleoptera, Bathysciinae), Christian Juberthie
International Journal of Speleology
In the eastern part of the Pyrenees (France) the author describes a scenario of speciation in the cave species complex Speonomus delarouzeei (Coleoptera Bathysciinae); the speciation processes have been initiated by a breakdown of the ecological equilibrium induced during three glacial-interglacial episodes. The scenario is the following: — during the first glaciation (2.3-2.1 MY), psychrophilic populations ancestral to S. brucki were selected over the highest elevation of the range, by means of cold effect which produced an adaptive demographic advantage; adaptive characters of troglobitic species (K strategy) take place presumably in relation to colonization of caves and M.S.S.; — during …
Stratigraphy, Paleontology And Paleobiogeography Of Lower Vertebrates From The Cedar Mountain Formation (Lower Cretaceous), Emery County, Utah, Michael L. Pomes
Stratigraphy, Paleontology And Paleobiogeography Of Lower Vertebrates From The Cedar Mountain Formation (Lower Cretaceous), Emery County, Utah, Michael L. Pomes
Master's Theses or Doctor of Nursing Practice
Where present, the basal Buckhorn Member of the Cedar Mountain Formation (Aptian-Albian) separates the overlying main member from the mudrocks of the Tithonian Brushy Basin Member of the Morrison Formation. Without the Buckhorn, the mudrocks of the Cedar Mountain Formation appear to grade into those of the Morrison, so one is apt to call the entire sequence Morrison. Where the Cedar Mountain Formation appears to grade in to the Morrison, use of lower vertebrate teeth can provide an additional means to separate the Morrison from the Cedar Mountain Formation. Lower vertebrate teeth and associated microvertebrate remains (eggshell and bone fragments) …
Macropaleontology Of The Gunn Member, Stony Mountain Formation (Upper Ordovician), Manitoba And North Dakota, Frederick K. Lobdell
Macropaleontology Of The Gunn Member, Stony Mountain Formation (Upper Ordovician), Manitoba And North Dakota, Frederick K. Lobdell
Theses and Dissertations
The Gunn Member of the Stony Mountain Formation has long been known to contain an abundant and diverse fauna. This study was undertaken to identify and describe the macrofauna of the Gunn Member in the subsurface of North Dakota, previously neglected.
As a necessary first step, collections of fossils from outcrop were examined and identified. With the outcrop fauna serving as a reference collection, twenty cores from the North Dakota subsurface were examined, described, and their fossils sampled. Fossil and sediment samples were washed and sieved and the residues were picked for microscopic representatives of phyla usually considered to be …
Looking At Lupins - Lupin Management In The South Eastern Wheatbelt, W. L. Smart, M. M. Ralph, J. M. Liddle, R.. D. Ramm, C. J. Robinson, E. W. Armstrong
Looking At Lupins - Lupin Management In The South Eastern Wheatbelt, W. L. Smart, M. M. Ralph, J. M. Liddle, R.. D. Ramm, C. J. Robinson, E. W. Armstrong
Grain and other field crops research reports
In the past couple of years research into lupins has increased substantially particularly in the fields of weed control, seeding rates, and control of diseases such as brown leaf spot and pleiochaeta root rot. This report is a summary of the lupin trials in the Lake Grace advisory area as well as a guide to better lupin farming.
Code Lists For Computerized Soil And Land Resource Data Recording, Peter D. King, M R. Wells
Code Lists For Computerized Soil And Land Resource Data Recording, Peter D. King, M R. Wells
Resource management technical reports
No abstract provided.
Nutrient Losses From Conventional And No-Till Cornfields, Robert L. Blevins, Wilbur Frye
Nutrient Losses From Conventional And No-Till Cornfields, Robert L. Blevins, Wilbur Frye
Soil Science News and Views
Farmers must be concerned about both the monetary loss and the threat of groundwater and surface water pollution associated with the loss of plant nutrients from their fields. There is also an increasing public concern about pollution and the role of agriculture in nonpoint-source pollution. Movement of water over the surface of the soil as well as through the soil profile increases the potential for loss of water-soluble nutrients, especially nitrates.
Depth Profiles And Soil Textures Of The Vernal Pools Of The Santa Rosa Plateau Preserve, Riverside County, California, Ralph Charles Workman Jr.
Depth Profiles And Soil Textures Of The Vernal Pools Of The Santa Rosa Plateau Preserve, Riverside County, California, Ralph Charles Workman Jr.
Loma Linda University Electronic Theses, Dissertations & Projects
The purpose of this project was to study the edaphic and topographic characteristics of the 13 vernal pools on the Santa Rosa Plateau Preserve, thus documenting the role soil texture plays in vernal pool formation.
Several field and laboratory procedures were used to demonstrate that there is a higher percentage of clay present within vernal pools than in soils outside the margin of the pools, for 11 out of the 13 pools. Statistical tests showed that the percentage of clay was highly significant within the center soil of the pool as compared to the soil outside the margin of the …
Fox Squirrel Interaction With Electrical Transformers, J. Christopher Hamilton
Fox Squirrel Interaction With Electrical Transformers, J. Christopher Hamilton
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Fox Squirrel Interaction With Electrical Transformers, J. Christipher Hamilton
Fox Squirrel Interaction With Electrical Transformers, J. Christipher Hamilton
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Development Of Dynamic Non-Hortonian Watershed Models For Steeply Sloping Forested Watersheds: Application To Eastern Kentucky, Lindell E. Ormsbee, Abdul Q. Khan
Development Of Dynamic Non-Hortonian Watershed Models For Steeply Sloping Forested Watersheds: Application To Eastern Kentucky, Lindell E. Ormsbee, Abdul Q. Khan
KWRRI Research Reports
A comprehensive conceptual watershed model is developed to simulate the hydrologic response of steeply sloping forested watersheds. Two non-Hortonian and two Hortonian models were first tested with data from selected watersheds in West Virginia and eastern Kentucky in order to understand the different mechanisms of flow responsible for storm hydrograph generation in this type of watersheds. The two non-Hortonian models tested were the kinematic storage model (Sloan et al. 1983) and the saturation deficit model (Beven and Wood, 1983). Both models were unable to adequately reproduce the observed hydrographs in the four forested watersheds considered in this research. The two …
The Soils Of Falls Farm Catchment Cuballing Western Australia R.A. Sudmeyer., Robert Anthony Sudmeyer
The Soils Of Falls Farm Catchment Cuballing Western Australia R.A. Sudmeyer., Robert Anthony Sudmeyer
Resource management technical reports
No abstract provided.
Repositioning Arizona Lands, D. Dean Bibles
Repositioning Arizona Lands, D. Dean Bibles
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
10 pages.
Ski Development In National Forests, Harris D. Sherman, David S. Neslin, Ian K. Whitlock
Ski Development In National Forests, Harris D. Sherman, David S. Neslin, Ian K. Whitlock
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
79 pages.
Carrying Capacity In The National Parks, Denis P. Galvin
Carrying Capacity In The National Parks, Denis P. Galvin
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
4 pages.
Blm Land Planning And Consistency Obligations To Provide For Protection Of Natural Values On Adjacent Protected Lands, William J. Lockhart
Blm Land Planning And Consistency Obligations To Provide For Protection Of Natural Values On Adjacent Protected Lands, William J. Lockhart
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
60 pages.
Watershed Management And Water Quality Protection, Thomas E. Wilson
Watershed Management And Water Quality Protection, Thomas E. Wilson
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
11 pages.
Contains references (page 1).
Wilderness Protection On Forest Service Lands: Badger-Two Medicine, Arnold W. Bolle
Wilderness Protection On Forest Service Lands: Badger-Two Medicine, Arnold W. Bolle
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
22 pages.
Lands Of Brighter Destiny: The Future Of The Public Lands, Elizabeth Darby Junkin
Lands Of Brighter Destiny: The Future Of The Public Lands, Elizabeth Darby Junkin
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
4 pages.