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Articles 50401 - 50430 of 52455
Full-Text Articles in Entire DC Network
Museum Victory For Animal Rights, Henry Spira
Museum Victory For Animal Rights, Henry Spira
Commentaries and Editorials
No abstract provided.
Soil And Plant Analysis : A Guide To Fertilizer Usage, Walter Jacob Cox
Soil And Plant Analysis : A Guide To Fertilizer Usage, Walter Jacob Cox
Journal of the Department of Agriculture, Western Australia, Series 4
Soil and plant analysis can be used to identify problems in soils, diagnose nutrient deficiencies and as a guide to fertiliser usage.
Soil testing is particularily useful where large amounts of phosphorus and potassium are leached or removed from the paddock in hay or silage.
Actual rates of fertiliser can only be recommended from soil testing and only in conjunction with additional biological and economic information.
Producing 20-Month Old Beef Steers Off Annual Pasture, K D. Greathead, D. J. Barker, W. J. Ryan
Producing 20-Month Old Beef Steers Off Annual Pasture, K D. Greathead, D. J. Barker, W. J. Ryan
Journal of the Department of Agriculture, Western Australia, Series 4
A recent Mt Barker experiment compared two systems of fodder conservation with continuous grazing, using two types of steers, at three stocking rates. Year-round performance, carcass composition, and resulting costs and returns per hectare were assessed.
Production per hectare was greatest from crossbred steers at the intermediate stocking rate with either type of fodder conservation.
New Header Treatment Aids Weevil Control, J H. Moulden
New Header Treatment Aids Weevil Control, J H. Moulden
Journal of the Department of Agriculture, Western Australia, Series 4
A new insecticide formulation supplied in high pressure cylinders simplifies weevil control in headers.
Attempts To Enrich The Parasite Fauna Of The European Corn Borer In Minnesota, H. C. Chiang, D. F. Palmer
Attempts To Enrich The Parasite Fauna Of The European Corn Borer In Minnesota, H. C. Chiang, D. F. Palmer
Journal of the Minnesota Academy of Science
Four parasitic insect species were tested in laboratory experimentation for adaptability to the European corn borer (ECB). Apanreles sesamiae, Apanteles flavipes and Chelonus knabi did not adapt to the ECB, Lixophaga diatraeae was able to survive on ECB. Three other species. Macrocentrus grandii, Eriborus terebrans and Lydella rhompsoni, all known parasites of ECB, were obtained and reared in the laboratory on ECB for propagation, release and ecological studies. Methodology for experimentation and propagation of parasites was described.
Dictyostelium Discoideum's 35-Year Contribution To Growth Of Biology: A Bibliometric Analysis, Joann Hilmas, Walter Fluegel
Dictyostelium Discoideum's 35-Year Contribution To Growth Of Biology: A Bibliometric Analysis, Joann Hilmas, Walter Fluegel
Journal of the Minnesota Academy of Science
Biological Abstracts is a sufficiently adequate bibliometric tool for the analysis of the accumulated literature of certain organisms. Dictyostelium discoideum (Cellular slime mold) titles are scarce, yet literature growth parallels some of the same growth patterns as the whole of science. Relatively few (5 percent) biologists produce most (55 percent) of the literature on this organism. American authors predominate. The literature is grouped into various categories such as aggregation, cytology, growth, and genetics with the molecular-physiological works surpassing all other categories combined in the last 5 years (66 percent). Although the literature is scattered worldwide, most articles are found in …
Alternatives For Ecosystem Classification And Their Use In Developing Rangeland Inventory And Management Planning Approaches, Neil E. West
Alternatives For Ecosystem Classification And Their Use In Developing Rangeland Inventory And Management Planning Approaches, Neil E. West
Memorandum
No abstract provided.
Optimum Yield And The Fcma: A Case For Economic Discrimination, Herrick J. Johnson
Optimum Yield And The Fcma: A Case For Economic Discrimination, Herrick J. Johnson
Marine Affairs Theses and Major Papers
Marine Affairs thesis from the University of Rhode Island.
Fisheries Report No 35 - Fish And Exploited Crustaceans Of The Swan-Canning Estuary, R C.J. Lenanton
Fisheries Report No 35 - Fish And Exploited Crustaceans Of The Swan-Canning Estuary, R C.J. Lenanton
Fisheries Research Reports
Fishes of the Swan-Canning estuarine system are typical of those found in other lower west coast estuarine systems of Western Australia. Species representing three families of elasmobranchs, several of which are commercially important, twenty families of teleosts, and two families of crustaceans (Table 1) commonly occur in this estuarine system. The many other species which occur less commonly in the Swan- Canning estuary are mostly members of the additional families listed in Table l.
The information contained in this document was made available for use by the authors of the following two publications : -
Forbes and Fitzkardinge (1977) Swan …
Fisheries Report No 32 - The Wildlife Of The Proposed Wandana Nature Reserve, Near Yuna, Western Australia, A. A. Burbidge, P. J. Fuller, A. Mccusker
Fisheries Report No 32 - The Wildlife Of The Proposed Wandana Nature Reserve, Near Yuna, Western Australia, A. A. Burbidge, P. J. Fuller, A. Mccusker
Fisheries Research Reports
Following a Cabinet endorsed recommendation by the Environmental Protection Authority in 1976 an area of vacant Crown land (the Wandana Area) north-east of Yuna, Western Australia, was examined during March and September, 1977.
The geology, soils and vegetation of the area are described and annotated lists of mammals, birds, reptiles and amphibians are presented. The area lies near or on the boundary of the South- Western and Eremaean Botanical Provinces and vegetation formations typical of both occur. The vertebrate fauna is a mixture of South-Western and Eyrean species and is especially rich in reptiles, 41 species being recorded. Comparisons between …
Potassium Deficiency In Lupins : Identification, Rates, Times And Method Of Application, Walter Jacob Cox
Potassium Deficiency In Lupins : Identification, Rates, Times And Method Of Application, Walter Jacob Cox
Journal of the Department of Agriculture, Western Australia, Series 4
Large areas of sandplain soils north of Perth are low in potassium levels, and responses to applied potassium have been large for both sub. clover and grain lupins.
This article indicates where potassium might be needed, and how to diagnose and overcome deficiencies in lupins.
Fisheries Report No 36 - Utilization Of The Bunbury And Geographe Bay Marine Resource By Professional And Amateur Fishermen, Michael H. Walker
Fisheries Report No 36 - Utilization Of The Bunbury And Geographe Bay Marine Resource By Professional And Amateur Fishermen, Michael H. Walker
Fisheries Research Reports
Utilization of the Bunbury and Geographe Bay marine resource by professional and amateur fishermen was investigated by personal interview, distribution and analysis of research log sheets, and examination of commercial statistics for the area, published by the Australian Bureau of Statistics.
Total professional production for the years 1966/67 - 1974/75 for Geographe Bay varied between 225517 and 1218049 Kg (mean 497175) with a mean annual value to fishermen of $427708. Production for the Bunbury marine area varied between 157666 and 333810 Kg (mean 226526) with a mean value to fishermen of $311008. For the 1975/76 season the total production was …
Optical Management Of The Spruce-Fir Forest Against The Spruce Budworm, Gari B. Simon
Optical Management Of The Spruce-Fir Forest Against The Spruce Budworm, Gari B. Simon
Senior Scholar Papers
Proper management of the softwood forest-budworm ecosystem is vital to the future prosperity of Maine. In choosing a management strategy, economic as well as ecological effects must be considered. This paper constructs a computer simulation model of the budworm-forest ecosystem in order to better evaluate effects of different types of forest management. The budworm-softwood forest ecosystem is a highly complicated system involving three dynamic population systems: the host tree population, the budworm population and the foliage population. Each system is modeled, by regression analysis, to observations collected by entomologists over the past half century. There are large gaps of knowledge …
The Application Of Ecosym Vegetation Classification To Rangelands Near Price, Utah, Don Shute, Neil E. West
The Application Of Ecosym Vegetation Classification To Rangelands Near Price, Utah, Don Shute, Neil E. West
Memorandum
No abstract provided.
Desert Biome Aquatic Program: A Literature Search For Biological And Physical Parameters For Use In Estimation Of Zooplankton Production, J. Anne Holman
Desert Biome Aquatic Program: A Literature Search For Biological And Physical Parameters For Use In Estimation Of Zooplankton Production, J. Anne Holman
Memorandum
No abstract provided.
Probability Of Attack By Southern Pine Beetle In Relation To Distance From An Attractive Host Tree, Paul C. Johnson, Jack E. Coster
Probability Of Attack By Southern Pine Beetle In Relation To Distance From An Attractive Host Tree, Paul C. Johnson, Jack E. Coster
Faculty Publications
The pattern of southern pine beetle (SPB) attack was examined in two infestations in East Texas to determine the probability of host tree attack (PA) as a function of distance (X) from a recently attacked tree (pheromone source). In an infestation having a low rate of newly attacked trees per day and only a few pheromone sources occurring simultaneously, distance was a critical factor in determining PA. The probability decreased as In X, and was described by the regression model, PA=0.06757- 0.2583 In X. Distance, however, was less critical in a larger infestation which had multiple pheromone sources occurring simultaneously …
Plants As Pumps, E A N Greenwood
Plants As Pumps, E A N Greenwood
Journal of the Department of Agriculture, Western Australia, Series 4
Native species vary greatly in their ability to pump ground water.
CSIRO studies are measuring water use by different plants to plan revegetation strategies.
Ua35/11 Student Honors Research Bulletin, Wku Honors Program
Ua35/11 Student Honors Research Bulletin, Wku Honors Program
WKU Administration Documents
Papers representative of the variety of scholarly research conducted at WKU.
- Adams, Kathy. The Appalachian Language
- Barnett, Philip. A Study of Deviant Behavior of XYY Individuals in Regard to Environment and Genotype
- Bell, Brooks. Loving, Loyal Linda Loman: An Interpretive Note
- Danhauer, Janice. Motivating Workers Through Job Design
- Davis, Barbara. The Transformation of a Man into a Man of Understanding in Murinbata Society
- Davis, Diane. The Argot of the Homosexual
- Jewell, Teresa. The Life Story of the Hero of World War I - Sergeant Alvin C. York
- Lanham, Wayne. Das Knarrenschiff and a Ship of Fools: A Study in Influence …
Investigations Of Ryegrass Toxicity., Brian A. Stynes
Investigations Of Ryegrass Toxicity., Brian A. Stynes
Experimental Summaries - Plant Research
Effect of burning on the production of galls, 78KA13.
Effect of the nematicide Nemacur, on the development of toxicity in ryegrass pasture, 78KA15.
Survival of Anguina sp and emergence from galls, 78KA14.
Study of populationsof Anguina sp on plants, 78KA31.
Mathematical Equations Describing Chick Performance And Carcass Composition As A Function Of Diet Protein And Energy Levels, Naiyana Nakhata
Mathematical Equations Describing Chick Performance And Carcass Composition As A Function Of Diet Protein And Energy Levels, Naiyana Nakhata
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Previous work at Utah State University determined minimum levels of different nutrients that would produce the maximum rate of gain or gain/feed ratio by feeding graded levels of the nutrients. Fitting broken lines to the data from work with one nutrient tended to underestimate the minimum requirement for that nutrient. It appeared that the response was not linear up to the level required to give maximum performance as the "broken line" approach to estimating the requirement assumes. It seemed worthwhile to try to describe the relation between ration level of a nutrient and chick performance by means of a mathematical …
Sex Pheromone Of The Tsetse Fly: Isolation, Identification, And Synthesis Of Contact Aphrodisiacs, D. A. Carlson, P. A. Langley, P. Huyton
Sex Pheromone Of The Tsetse Fly: Isolation, Identification, And Synthesis Of Contact Aphrodisiacs, D. A. Carlson, P. A. Langley, P. Huyton
Entomology Papers from Other Sources
Sex pheromones isolated from the cuticle of the female tsetse fly, Glossina morsitans morsitans Westwood, release mating behavior in the malefly at ultra- short range or upon contact with baited decoys. Three active components were iden- tified as 15,19-dimethylheptatriacontane, 17,21-dimethylheptatriacontane, and 15,19,23-trimethylheptatriacontane. Chemical and biological comparisons show that the natural and synthetic compounds are identical.
Phosphorus Source Trials, M D.A Bolland
Phosphorus Source Trials, M D.A Bolland
Experimental Summaries - Plant Research
HIGH RAINFALL AREAS.
SAND: 76BU1 - New land phosphorus sources trial (pasture) T. O'Bryne, Yallingup. 76BU4 - Old land phosphorus sources trial (pasture) T. Combe, Busselton.
GRAVEL: 76MT10 - New land phosphorus sources trial (pasture) Mt. Barker Research Station. 76MT9 - Old land phosphorus sources trial (pasture) Mt. Barker Research Station. 77MT1 - New land particle size and method of cultivation phosphorus sources trial (pasture) Mt. Barker Research Station. 77MT2 - Old land phosphorus sources cropping trial (oats every third year). Mt. Barker Research Station.
MEDIUM RAINFALL AREAS.
SAND: 77E537 - Young land phosphorus sources trial (pasture) F. Fels, Esperance. …
Supplementary Summary Report 1977 Pasture Species Investigations - Wheatbelt., N. R. Mckeown
Supplementary Summary Report 1977 Pasture Species Investigations - Wheatbelt., N. R. Mckeown
Experimental Summaries - Plant Research
Seed yields of early maturing subterranean clovers. A brief description of weather conditions in 1977, site details and results of germination counts and growth ratings were included in the Summary Report for 1977. Drill-sown trials - Seed yields from the trials varied from good in the southern wheatbelt to very poor in the northern areas. Test samples were taken from trials 77GE32, 77GE40 and 77GE41 in the Pindar and Tardun districts, 77ME22 at Koorda and 77TS25 at Perenjori but the quantity of seed did not warrant yield assessment. Trial 77M022 at Gabalong was not sampled. Seed yields from the rest …
Phosphorus And Sulphur Interactions, 1978., J S. Yeates, R J. Lunt, K F. Longbottom
Phosphorus And Sulphur Interactions, 1978., J S. Yeates, R J. Lunt, K F. Longbottom
Experimental Summaries - Plant Research
Yield results, 78AL3, 78KE4, 78M08, 78BY3, 78BA8, 78BU3, 78N04, 78A7, 78C4, 78B4, 78MA2.
Soil sampling data.
Field Crops And Pasture Experiments., P Mcr Wood
Field Crops And Pasture Experiments., P Mcr Wood
Experimental Summaries - Plant Research
Lupinosis.
Badgingarra.
On-farm treatments.
Pasture Species Investigations, High Rainfall Area, 1978., D A. Nicholas1978
Pasture Species Investigations, High Rainfall Area, 1978., D A. Nicholas1978
Experimental Summaries - Plant Research
Clover cultivar grazing trial, N. bannister.
Perennial versus annual grass grazing trial, Manjimup research station.
Pasture types and stocking rate trial, Denmark agricultural high school. Clover cultivar evaluation trials, 77BU10, 77AL22, 77D5, 77ES27, 77ES28, 77ES29, 78DE1, 78MN5, 78BR16, 78BU15.
Trikkala evaluation trial, Mt Barker research station, see also report of D. J. Gillespie.
Predictive Test For Take-All; Effect Of Nitrogen Fertalizers On Wheat Rhizosphere Micro-Organisms., K Sivasithamparam
Predictive Test For Take-All; Effect Of Nitrogen Fertalizers On Wheat Rhizosphere Micro-Organisms., K Sivasithamparam
Experimental Summaries - Plant Research
Predictive test for take-all. The use of the most probable number technique.
Effect of nitrogen fertalizers on wheat rhizosphere micro-organisms, 78LG3, 78E16.
76LG25, 77LG20, 76E6, 77JE4, 78LG3, 78E16,
Anatomical Studies During Floral Induction, Evocation And Initiation In Eucharis Grandiflora, Planch., The Amazon Lily, Raphael T. Deba
Anatomical Studies During Floral Induction, Evocation And Initiation In Eucharis Grandiflora, Planch., The Amazon Lily, Raphael T. Deba
Electronic Theses and Dissertations
Several questions were posed at this point which led to the hypotheses to be tested in this investigation. The experimental design was divided into 3 phases. For a detailed description of the design, see Appendix A. Phase I of this study involved a comparative study of the anatomy of the apices of plants of Eucharis grandflora, the Amazon lily, exposed to heat (27-29° C) for one, two, three, four or five weeks, in an effort to see if manifestations of floral evocation and/or initiation are in evidence when compared to the control. Since the time from the end of heat …
The Vegetational Composition Of The Samuel H. Ordway Memorial Prairie, Fred K. Carl
The Vegetational Composition Of The Samuel H. Ordway Memorial Prairie, Fred K. Carl
Electronic Theses and Dissertations
This thesis represents the first half of a two year study of the vegetational composition of the Samuel H. Ordway, Jr. Memorial Prairie. Quadrat and point frame sampling was completed along 100 transects distributed over the 10 pastures. Biomass for the study area was determined to be 133. 3 g•m-2 for live weight and 104.0 g•m-2 for mulch. Basal cover for Ordway Prairie was found to be 12.5%. The study area was found to be predominantly occupied by warm season species. Andropogon scoparius was found to be highest in relative density while Carex was highest in relative frequency. …
Primary Productivity In Lake Cochrane, South Dakota, During And After Sediment-Control Dam Construction, Randall Francis Brich
Primary Productivity In Lake Cochrane, South Dakota, During And After Sediment-Control Dam Construction, Randall Francis Brich
Electronic Theses and Dissertations
Lake Cochrane was selected for this study because of its history of superior water transparency (Haertel 1972, 1976b). Significant amounts of silt and chemicals enter the lake with runoff at 3 locations (Haertel unpublished data). Restriction or impediment of runoff at these locations should result in improved water transparency (Haertel 1976b, Siegel 1975). Therefore, East Dakota Conservancy Sub-District and the South Dakota Department of Wildlife, Parks, and Forestry decided to impede runoff waters by means of 3 sediment-control dams incorporated into the perimeter road system of the lake and financed through a grant from the Environmental Protection Agency (Siegel 1975) …