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Articles 19321 - 19350 of 19670
Full-Text Articles in Entire DC Network
Ornamental Trees For The Farm Garden, P Luff
Ornamental Trees For The Farm Garden, P Luff
Journal of the Department of Agriculture, Western Australia, Series 4
THE need for trees in the farm garden is being realized by many people.
Trees around the homestead are required to give such features as shade, colour, fragrance and many other advantages to generally make an area more livable.
Besides these advantages, trees appear to help smaller plants flourish by increasing the humidity and providing various degrees of shade and sunlight.
Poultry Behaviour As It Affects Management, R H. Morris
Poultry Behaviour As It Affects Management, R H. Morris
Journal of the Department of Agriculture, Western Australia, Series 4
UNDER natural conditions animals have considerable control over their movements and over their proximity to each other.
Today, however, there is a trend in animal husbandry towards greater intensificaton, and this is most evident in the poultry industry.
Tenth Random Sample Laying Test, 1966-67 : Litter, Department Of Agriculture, Western Australia
Tenth Random Sample Laying Test, 1966-67 : Litter, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
TENTH RANDOM SAMPLE LAYING TEST, 1966-67 - LITTER
POULTRY RESEARCH STATION, WEMBLEY
SECOND PROGRESSIVE REPORT TO 26th FEBRUARY,1967
Average age of birds 215.5 days or 30 weeks and 6 days.
New Phytotron Widens Scope For Research, Department Of Agriculture, Western Australia
New Phytotron Widens Scope For Research, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
A WIDE range of new experiments and greater speed and efficiency in many existing projects has been made possible by the recent completion of the Department of Agriculture phytotron at South Perth.
Competition And Natural Selection Among Laboratory And Naturally Occurring Populations Of Drosophila Melanogaster, John M. Connor
Competition And Natural Selection Among Laboratory And Naturally Occurring Populations Of Drosophila Melanogaster, John M. Connor
Masters Theses
No abstract provided.
Geographic Variation In Middle American Parrots Of The Amazona Ochrocephala Complex, Burt L. Monroe Jr., Thomas R. Howell
Geographic Variation In Middle American Parrots Of The Amazona Ochrocephala Complex, Burt L. Monroe Jr., Thomas R. Howell
Occasional Papers of the Museum of Natural Science, Louisiana State University
No abstract provided.
Development, Verification, And Use Of Methods To Model Chemical And Thermal Processes Lakes Mead And Powell, Bureau Of Reclamation
Development, Verification, And Use Of Methods To Model Chemical And Thermal Processes Lakes Mead And Powell, Bureau Of Reclamation
Publications (WR)
PURPOSE The purpose of the proposed research is to quantify the effects that Lakes Mead and Powell have on the salinity in the Colorado River system, and to evaluate changes that cap be made to the operating system of the reservoirs (within legal/institutional constraints) to enhance salt precipitation and/or minimize evaporation within the reservoirs. The effect of any changes (i.e., selective withdrawal uses, pumped storage, etc.) on reservoir evaporation could also be evaluated with a goal of minimizing evaporation. This will be accomplished through the development of a mathematical model of the reservoirs as described below. BACKGROUND Two major problems …
Home Range Analysis Of The Montane Vole, Don Rogers Toews
Home Range Analysis Of The Montane Vole, Don Rogers Toews
All Master's Theses
This study on Microtus montanus was divided into three major sections: 1) An examination of nests, burrows, and runways, 2) A comparison of two methods of home range analysis--live trapping and radio-isotope tracing, and 3) A comparison of the home range of Microtus montanus with other species of Microtus as published in the literature.
Preliminary Studies Of Germination Requirements Of Shadscale Atriplex Confertifolia Torr. And Ferm. Wats, Ijaz Hussain
Preliminary Studies Of Germination Requirements Of Shadscale Atriplex Confertifolia Torr. And Ferm. Wats, Ijaz Hussain
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
Shadscale (Atriplex confertilolia (Torr. and Frem.) Wats.) is an important component of the salt-desert-shrub vegetation type in the intermountain region. This species dominates a large portion of the 41 million acres occupied by this vegetation type. Shapscale reaches greatest importance at lower elevations of Utah and Nevada, where despite the low productivity due to its harsh habitat, this vigorous shrub furnishes considerable winter grazing for sheep and cattle. Gates et al. (1966) have observed that poor drainage conditions, coupled with low precipitation, results in the concentration of salts, a chief habitat factor determining the growth and distribution of this species. …
Growth Rates At Various Temperatures Of The Orange-Throat Darter Etheostoma Spectabile (Agassiz), Boyce W. West
Growth Rates At Various Temperatures Of The Orange-Throat Darter Etheostoma Spectabile (Agassiz), Boyce W. West
Journal of the Arkansas Academy of Science
No abstract provided.
Individual Sow Feeders, P Mcnamara
Individual Sow Feeders, P Mcnamara
Journal of the Department of Agriculture, Western Australia, Series 4
FOOD is the major cost in any pig enterprise and it is particularly easy for waste to occur in the breeding herd.
Individual feeders enable the pigman to feed each sow according to her need, and enable the sows to eat their feed slowly or quickly as they choose.
Additional Information On Basicladia Crassa Hoffmann And Tilden, Robert G. Anderson, Clarence B. Sinclair
Additional Information On Basicladia Crassa Hoffmann And Tilden, Robert G. Anderson, Clarence B. Sinclair
Journal of the Arkansas Academy of Science
No abstract provided.
Heat Resistance Experiments With The Longear Sunfish, Lepomis Megalotis (Rafinesque), William H. Neill, Kirk Strawn, James E. Dunn
Heat Resistance Experiments With The Longear Sunfish, Lepomis Megalotis (Rafinesque), William H. Neill, Kirk Strawn, James E. Dunn
Journal of the Arkansas Academy of Science
No abstract provided.
Influence Of Fire On Aspen, K. W. Horton, E. J. Hopkins
Influence Of Fire On Aspen, K. W. Horton, E. J. Hopkins
Aspen Bibliography
No abstract provided.
Review Of Silvicultural Research: White Spruce And Trembling Aspen Cover Types, Mixedwood Forest Section, Boreal Forest Region, Alberta-Saskatchewan-Manitoba, J. M. Jarvis, G. A. Steneker, R. M. Waldron, J. C. Lees
Review Of Silvicultural Research: White Spruce And Trembling Aspen Cover Types, Mixedwood Forest Section, Boreal Forest Region, Alberta-Saskatchewan-Manitoba, J. M. Jarvis, G. A. Steneker, R. M. Waldron, J. C. Lees
Aspen Bibliography
The Department of Forestry has been carrying on silvicultural research in the white spruce (Picea glauca (Moench) Voss) and trembling aspen (Populus tremuloides Michx.) cover types in the Mixedwood Forest Section of Alberta, Saskatchewan and Manitoba for about 40 years. Because of the needs of industry most of this research has been focused on spruce, and only as small portion on aspen. Much of the research is concerned with basic problems and the findings in one area may be applied directly or with minor modification throughout the entire Mixedwood Forest Section. Only a minor part of the total …
Observations On Occurrence And Range Of Three Species Of Dentaria (Cruciferae) In The Ouachita Mountains, Aileen L. Mcwilliam
Observations On Occurrence And Range Of Three Species Of Dentaria (Cruciferae) In The Ouachita Mountains, Aileen L. Mcwilliam
Journal of the Arkansas Academy of Science
No abstract provided.
Study Of The "Killing Phenomenon" In Isolated Groups Of Etheostoma Spectabile (Agassiz), Thomas M. Buchanan
Study Of The "Killing Phenomenon" In Isolated Groups Of Etheostoma Spectabile (Agassiz), Thomas M. Buchanan
Journal of the Arkansas Academy of Science
No abstract provided.
The Labiatae Of Arkansas, James M. Lang
The Labiatae Of Arkansas, James M. Lang
Journal of the Arkansas Academy of Science
No abstract provided.
Factors Affecting Nesting Success Of The Canvasback In The Aspen Parklands, Jerome H. Stoudt
Factors Affecting Nesting Success Of The Canvasback In The Aspen Parklands, Jerome H. Stoudt
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
The Minnedosa study area is located in the southwestern portion of Manitoba just south of the town of Minnedosa. It is 90 square miles in size and roughly square in shape. The Aspen Parkland, in which the study area is located, is characterized by gently rolling terrain and black soils. Mixed farming is the rule with emphasis on small grain production consisting of wheat, barley, and oats. Roughly 50 percent of the water areas in the parkland are ringed with aspen, Populus tremuloides, and large blocks of aspen are interspersed throughout the area. The Minnedosa area differs because of …
Two New Colubrid Snakes Of The Genus Rhadinaea From Southern Mexico, Douglas A. Rossman
Two New Colubrid Snakes Of The Genus Rhadinaea From Southern Mexico, Douglas A. Rossman
Occasional Papers of the Museum of Natural Science, Louisiana State University
No abstract provided.
A New Species Of Cacicus (Aves: Icteridae) From Peru, George H. Lowery Jr., John P. O'Neill
A New Species Of Cacicus (Aves: Icteridae) From Peru, George H. Lowery Jr., John P. O'Neill
Occasional Papers of the Museum of Natural Science, Louisiana State University
No abstract provided.
Two New Subspecies Of Birds From Oaxaca, Mexico, Laurence C. Binford
Two New Subspecies Of Birds From Oaxaca, Mexico, Laurence C. Binford
Occasional Papers of the Museum of Natural Science, Louisiana State University
No abstract provided.
The Nomenclature Of The Red-Winged Blackbird (Agelaius Phoeniceus) Of South-Central Mexico, Robert W. Dickerman
The Nomenclature Of The Red-Winged Blackbird (Agelaius Phoeniceus) Of South-Central Mexico, Robert W. Dickerman
Occasional Papers of the Museum of Natural Science, Louisiana State University
No abstract provided.
The Breeding Population Of Waterfowl On The Chippewa National Forest, John Mathiesen
The Breeding Population Of Waterfowl On The Chippewa National Forest, John Mathiesen
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
The purpose of this paper is to describe the characteristics of the breeding waterfowl population on the Chippewa National Forest in north central Minnesota.
Water Chemistry Survey Of Boulder Basin, Lake Mead, P. R. Tramutt, Bureau Of Reclamation
Water Chemistry Survey Of Boulder Basin, Lake Mead, P. R. Tramutt, Bureau Of Reclamation
Publications (WR)
The survey results indicate that the impoundment of water behind Hoover Dam has not adversely affected the dissolved oxygen (DO) content and that water quality and DO content were uniform regardless of depth. The study made in April-May 1964 will provide water quality data of Lake Mead prior to releases from Lake Powell as a basis for evaluating Lake Powell's effect on water quality and limnology of Lake Mead. The performance of a DO analyzer was tested and found unsatisfactory at depths below 150 ft. Parameters tested by standard chemical analyses of water samples in the Denver Laboratory and by …
Amphibians And Reptiles Of Vigo County, Indiana, David Rubin
Amphibians And Reptiles Of Vigo County, Indiana, David Rubin
All-Inclusive List of Electronic Theses and Dissertations
Vigo County, Indiana is an extremely interesting area for herpetological studyo Its geographical location allows for the interplay of faunal elements from east, west, north, and south (Smith and minton, 1957) and its physiography permits investigation of the relations of terrain and glacial geology to herpetofaunal distribution. Blatchley (1891, 1899) published two papers on the amphibians and reptiles of the county and Allyn and Shockley (1938) reported on the county's salamandersa The present paper has the following objectives: to determine which species occur or have recently occurred in Vigo County; to determine amphibian and reptile distribution in the county; to …
Aspen-Elk Relationships On The Northern Yellowstone Winter Range, William J. Barmore Jr.
Aspen-Elk Relationships On The Northern Yellowstone Winter Range, William J. Barmore Jr.
Aspen Bibliography
No abstract provided.
Cacodylic Acid As A Silvicide, Maurice W. Day
Cacodylic Acid As A Silvicide, Maurice W. Day
Aspen Bibliography
This report deals with the effectiveness of cacodylic acid (dimethylarsenic acid) as a silvicide for undesirable trees. Cacodylic acid has been used successfully as an herbicide for the destruction of grasses and weeds. Experimental work with this material was begun during the 1963 field season, and continued during 1964, to permit complete evaluation of the results. It appears that cacodylic acid has considerable potential as a silvicide.
Swallowtail Butterflies Of Arkansas (Lepidoptera; Family Papilionidae), E. Phil Rouse
Swallowtail Butterflies Of Arkansas (Lepidoptera; Family Papilionidae), E. Phil Rouse
Journal of the Arkansas Academy of Science
No abstract provided.
Habits And Life History Of The Bronze Flea Beetle, Altica Tombacina (Mannerheim) (Coleoptera-Chrysomelidae), Jane C. Dirks-Edmunds
Habits And Life History Of The Bronze Flea Beetle, Altica Tombacina (Mannerheim) (Coleoptera-Chrysomelidae), Jane C. Dirks-Edmunds
Jane Claire Dirks-Edmunds Documents
This article, which was published in volume 39 issue 4 of the journal Northwest Science, describes a study that began in the fall of 1959 and was supported by federal grant G-8779. Dr. Jane Claire Dirks-Edmunds's research focused on the little-known Bronze Beetle and involved several of her contemporaries, both within and outside the Linfield College Biology Department.