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Articles 14131 - 14160 of 14322
Full-Text Articles in Entire DC Network
Bulletin No. 192 - Biennial Report Of The Director: For The Years 1923 And 1924
Bulletin No. 192 - Biennial Report Of The Director: For The Years 1923 And 1924
UAES Bulletins
No report (either annual or biennial) of the work of the Utah Agricultural Experiment Station has been published separately since 1906. There has been so much inquiry regarding the present status of research projects that a brief report at this time is considered opportune. The report is an attempt to give the reader a brief but concise and comprehensive survey of the research work now under way at the Utah Agricultural Experiment Station as well as a brief description of the work being attempted on each of the experimental farms.
Bulletin No. 189 - Ridding The Land Of Wild Morning Glory, George Stewart, D. W. Pittman
Bulletin No. 189 - Ridding The Land Of Wild Morning Glory, George Stewart, D. W. Pittman
UAES Bulletins
"Morning glory" is the common name for one of the worst weeds found in Utah. On account of its general resemblance to a cultivated plant spoken of as morning glory, the weed is frequently and more correctly known as the "wild morning glory." Since everyone who handles farm land knows the plant, a description of it is unnecessary. It may not be amiss, however, to mention that the name probably comes from the fact that the showy, funnel-shaped flowers are open only in the morning, being folded within the sepals after midday or earlier in hot, dry weather.
Bulletin No. 190 - Corn Silage In A Dairy Ration, W. E. Carroll
Bulletin No. 190 - Corn Silage In A Dairy Ration, W. E. Carroll
UAES Bulletins
In 1914 a study of the value of corn silage in the dairy ration was undertaken at this station. The first phase of the general question to receive attention was the effect of adding silage to a basal ration of alfalfa hay and grain.
Western Yellow Pine Mistletoe, J. E. Weaver
Western Yellow Pine Mistletoe, J. E. Weaver
Department of Agronomy and Horticulture: Faculty Publications
This bulletin gives the results of studies over a period of twelve years on the effect of mistletoe Razounzofskya cryptopoda (Engelm.) Cov. on the growth and seed production of western yellow pine. The intensive part of these studies was carried on near the San Francisco mountains in northern Arizona. " The parasite is the most widely distributed and one of the most serious enemies of the western yellow pine." On southern slopes and near the lower limit of the distribution of the pine, areas occur where 75 to 90 per cent of all trees above six inches in diameter are …
Bulletin No. 188 - Maintaining The Productivity Of Irrigated Land, D. W. Pittman
Bulletin No. 188 - Maintaining The Productivity Of Irrigated Land, D. W. Pittman
UAES Bulletins
It is almost universal history that in farming a newly developed region no attention whatever is paid to maintaining the fertility of the soil. This is natural for two very obvious reasons. In the first place the pioneer has other and more pressing problems in the "subduing" of the new land, and in the second place such virgin soils are generally blessed with a great abundance of native fertility. New lands in an arid or semiarid region are usually especially fertile because they represent a long-time accumulation of fertility which is not possible under humid conditions. Since in a humid …
Circular No. 51 - Foot-And-Mouth Disease, H. J. Frederick
Circular No. 51 - Foot-And-Mouth Disease, H. J. Frederick
UAES Circulars
The following is printed that the seriousness of the foot-and-mouth disease outbreak might be apparent to the farmers and ranchmen of Utah, that the importance of the quarantine regulations might be emphasized, that precautionary methods might be adopted by each individual concerned, that the disease might be recognized should it occur, and that each stock man of the state might see the importance of immediately reporting to the State Veterinarian or to a veterinarian in his locality or to the Utah Agricultural Experiment Station.
A Study Of Size Inheritance In Wheat, Peter Nelson
A Study Of Size Inheritance In Wheat, Peter Nelson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The results presented in this paper are from data accumulated by a study of the F3 generation of a cross between the two varieties, Sevier and New Zealand wheat. This cross was made during the summer of 1920 by Professor George Stewart with the object of combining the high-yielding power of Sevier with the strong straw of New Zealand. In the fall of 1922 the problem was assigned to me, at which time I selected about 150 superior plants, possessing the desired characteristics, at least so far as appearance was concerned. Since then these plants and the F3 generation have …
Field Studies Of The Control Of The Sugar Beet Nematode. (1920-24). (Heterodera Schachtii Schmidt)., Alfred H. Bateman
Field Studies Of The Control Of The Sugar Beet Nematode. (1920-24). (Heterodera Schachtii Schmidt)., Alfred H. Bateman
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The dire consequences of nematode invasion have been graphically depicted by Spiegler (1907), who says, the beet industry was at its heyday during the seventies. Nor satisfied with the land already in cultivation, the farmer plowed fertile lands along the border of the streams, wherein to grow beets, obtaining in some cases of 20 to 27 tons an acre.
Range And Pasture Management, J. E. Weaver
Range And Pasture Management, J. E. Weaver
Department of Agronomy and Horticulture: Faculty Publications
Sampson's range and pasture management is an excellent example of the application of the principles of ecology to the solution of economic problems. In grazing experiments it is of equal importance to know what is happening to the stock and to the vegetation. This emphasizes the fact, which ecologists are coming more and more to recognize, that animals, both wild and domesticated, have a proper place in the environment and that they play an important role in modifying the vegetational development. This volume consists largely of first-hand information obtained by the author during fifteen years of intensive pasture investigations for …
Circular No. 50 - Brooding And Feeding Chicks, Byron Alder
Circular No. 50 - Brooding And Feeding Chicks, Byron Alder
UAES Circulars
Raising baby chicks seems a comparatively simple matter to some, yet there are more failures in poultry-keeping due to inability to raise good, vigorous pullets than to any other one cause. The number of eggs produced, the size of the eggs (within certain limits), and the profit made from a flock of hens is often determined very largely by the success in brooding the chicks and developing the pullets into strong, vigorous hens. Many who try to raise chicks are not successful because they fail to realize that a baby chick is a "real baby". They cannot survive with careless …
Circular No. 49 - This Public Domain Of Ours, George Stewart
Circular No. 49 - This Public Domain Of Ours, George Stewart
UAES Circulars
In Utah are somewhat more than fifty-two and a half million acres of land. Of this about five million acres are in farms, but only 1,371,000 acres, or 2.6 per cent, are irrigated. In addition there are about 344,000 acres under dry-farm culture, making a total of 1,715,000 acres of improved land. This leaves all of Utah's fifty-two and a half million acres, except about 3.5 per cent, to be utilized by some means other than crop-growing. There will be some addition of new lands not in farms and some development in unimproved farm lands, but when every development that …
Bulletin 119 - Take-All Of Wheat And Similar Diseases Of Cereals, W. M. Carne, J. G.C. Campbell
Bulletin 119 - Take-All Of Wheat And Similar Diseases Of Cereals, W. M. Carne, J. G.C. Campbell
Bulletins 1 - 2999
This important disease, known also as Footrot, Blackleg, and Whiteheads, affects wheat principally, but also occurs on barley, rye, and certain grasses. In a very few instances it has been known to attack oats, but this is so rare that oats may be regarded for practical purposes as free from attack. Of the grasses attacked the most important, from a farming point of view in Western Australia, are Bailey Grass (Hordeum murinum), Silver Grass (Festuca bromoides and F. myuros), and the so-called Spear grasses (Bromus spp.). These annual grasses are very common in the wheat belt.
Bulletin 122 - Fruit-Fly: Description And Control, L. J. Newman
Bulletin 122 - Fruit-Fly: Description And Control, L. J. Newman
Bulletins 1 - 2999
IT is a fundamental principle of Economic Entomology that, in order to successfully combat an insect, the life history of that insect must be worked out. A feature common to all insects is a series of stages involving distinct changes of form which succeed each other in a definite order.
An insect like the fruit-fly affords no exception to this universal rule. Beginning with the fly, we have in regular succession—Egg, Larva, Pupa, and finally the fly again. These stages represent what is known as the life cycle of time insect. Each change—such as larva to pupa, pupa to fly—is …
Bulletin No. 3: Catalogue Of The Flowering Plants And Ferns Of Springfield, Massachusetts, Growing Without Cultivation, Luman Andrews, A Committee Of The Springfield Botanical Society
Bulletin No. 3: Catalogue Of The Flowering Plants And Ferns Of Springfield, Massachusetts, Growing Without Cultivation, Luman Andrews, A Committee Of The Springfield Botanical Society
Public Domain Books
No abstract provided.
A Genetic View Of Sex Expression In The Flowering Plants, R. A. Emerson
A Genetic View Of Sex Expression In The Flowering Plants, R. A. Emerson
Department of Agronomy and Horticulture: Faculty Publications
It seems a conservative statement to say that studies
of the past twenty years among animal forms have
tended increasingly to link the phenomena of sex inheritance
with the behavior of chromosomes. To this
result, cytology and genetics have contributed perhaps
almost equally. The number of forms in which
one sex is known to have a morphologically different
chromosome complex from the other sex are many.
That, with respect to the chromosomes, the female of
certain forms produces gametes of a single kind,
whereas the male produces two kinds, and that in
turn an egg fertilized by one kind of …
Circular No. 48 - Rural Credits In Utah, E. B. Brossard
Circular No. 48 - Rural Credits In Utah, E. B. Brossard
UAES Circulars
The subject of rural credits is of interest to farmers, bankers, investors, and all others concerned about public welfare. This circular is written for the purpose of giving general information about agricultural credit conditions existing at the present time, with special reference to mortgage credit in Utah and the Federal Farm Loan System as now amended. The passage of the Federal Intermediate Credits Act, approved March 4, 1923 makes this an opportune time to check up on the situation.
Bulletin No. 186 - Irrigation Experiments With Sugar Beets, F. S. Harris, D. W. Pittman
Bulletin No. 186 - Irrigation Experiments With Sugar Beets, F. S. Harris, D. W. Pittman
UAES Bulletins
A previous bulletin of this station gives the results of an experiment on the irrigation of sugar-beets continuing for five years. Since this experiment was deemed of sufficient importance to merit our best attention and since the climatic conditions which largely determine what is the best irrigation practice may not for so short a period properly represent the average of the community, it was thought advisable to continue the experiment, with certain modifications, for an additional five years. This bulletin reports the results of these last 5-years' work together with such general conclusions as can be drawn from the entire …
Bulletin No. 187 - Irrigation Experiments With Potatoes, F. S. Harris, D. W. Pittman
Bulletin No. 187 - Irrigation Experiments With Potatoes, F. S. Harris, D. W. Pittman
UAES Bulletins
In a previous bulletin of this station are given the results of an experiment on different irrigation treatments of potatoes continued for five years. In view of the importance of the potato crop and of the importance of having it properly irrigated it was considered advisable to continue the experiment, with certain modifications based on experience, for a further period of five years. This total period of ten years should include most of the climatic variations which are common in this locality, and by eliminating the more unsatisfactory irrigation systems a closer approximation to the best system should be found. …
Bulletin No. 185 - The Influence Of Nitrogen In Soil On Azofication, J. E. Greaves, D. H. Nelson
Bulletin No. 185 - The Influence Of Nitrogen In Soil On Azofication, J. E. Greaves, D. H. Nelson
UAES Bulletins
Many soils of the arid west have a rich active azofying flora. This is due in no small measure to their composition. They are high in calcium and magnesium carbonate and contain a good supply of available phosphorus and potassium but have a low nitrogen content. They are poor in organic carbon; hence, their native supply of energy is limited. It is well-known that a liberal supply of rapidly decaying organic matter is beneficial, and this is being supplied to some soils in the form of manures. This will increase the nitrogen content of the soil. What effect will this …
Bulletin No. 184 - A Farm-Management Study Of The Great Salt Lake Valley, George Stewart
Bulletin No. 184 - A Farm-Management Study Of The Great Salt Lake Valley, George Stewart
UAES Bulletins
This survey had for its purpose the study of farm organization in Great Salt Lake Valley. It is hoped that some conclusions may have been reached as to how to improve farming conditions. The records were taken during the summer of 1915 and consequently represent the farm business for 1914. Ordinarily the period of time that has elapsed since the records were taken would be too long to justify their being published. In view of the fact, however, that the World War began in 1914 and that its effects on the prices of farm products lasted until 1921, it is …
Mendelian Inheritance In Wheat Hybrids, J. Leo Mortensen
Mendelian Inheritance In Wheat Hybrids, J. Leo Mortensen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Until the beginning of the present centry the general opinion was that Egypt and Mesopotamia were the earliest homes of cultivated plants. Recent translations of the old Chinese records, however, reveal the fact that many of our cultivated plants were grown by the ancient peoples of China prior to the time of the Egyptians.
Dettweiler (11) (1914) writes: "Today it is admitted--except by a few--that the original home of the primitive European population, the Indo-Germans, is not Asia but northern Europe, that they developed their culture there in the late stone age, and that they then dispersed in their wanderings …
Hybridization Of Wheat, Floyd M. Beach
Hybridization Of Wheat, Floyd M. Beach
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The purpose of this paper is to set forth the purpose of wheat hybridization. To do this properly it is necessary to know the history of hybridization of plants. Also to know some of the workers in this field and the hybrids produced by them. In the work at the Experiment Stations the various experimenters have discovered many interesting facts which it is necessary to know and understand. To thoroughly comprehend the work it is also necessary to do the actual processes of the work and to carry the hybrid through several generations and eventually to the goal for which …
Improvement Of Small Grains By Pure Line Selection, Dilworth Walker
Improvement Of Small Grains By Pure Line Selection, Dilworth Walker
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The present economic status of grain farming in the United States calls for adjustments in various ways. Legislation, such as price fixing, can do very little. Adjustment of acreage along with improved methods of marketing can do much. But improvement of the grains grown through breeding processes to increase the yields per acre and improve the milling quality, will render a service of permanent value, since all of the results appear in the profit column.
Bulletin 106 - The Red-Legged Velvet Earth Mite, L. J. Newman
Bulletin 106 - The Red-Legged Velvet Earth Mite, L. J. Newman
Bulletins 1 - 2999
This pest is sometimes called in error the "Red Spider" or the 'Earth Flea."
It is neither a spider nor a flea, being a species of mite.
It belongs to the family of mites known as the Eupodidae and to the Genus Notophallus. Many of the members of this family are predaceous, that is, they live upon other insects or animals, but the species we are dealing with appears to be wholly a plant feeder. A popular idea is that the mite lives and breeds in the earth. The rapidity with which newly planted vegetables become infested gives good excuse …
Bulletin No. 183 - Water-Holding Capacity Of Irrigated Soils, Orson W. Israelsen, Frank L. West
Bulletin No. 183 - Water-Holding Capacity Of Irrigated Soils, Orson W. Israelsen, Frank L. West
UAES Bulletins
All information that will 'enable the irrigator to use water economically is valuable to arid-climate agriculture. In many arid-climate regions, including the western part of the United States, excessive waste of water occurs in the irrigation of highland porous soil areas, as a result of lack of information concerning the capacity of the soil to hold water. Following the waste of water on the uplands by excessive percolation through open soils, vast lowland areas are rendered partially or wholly nonproductive by water-logging. To illustrate, a gravelly bench soil four feet deep, if underlain by a coarse open gravel to a …
Bulletin No. 178 - The Irrigation Of Barley, F. S. Harris, D. W. Pittman
Bulletin No. 178 - The Irrigation Of Barley, F. S. Harris, D. W. Pittman
UAES Bulletins
The proper use of irrigation water is one of the most important problems of every comnunity and of every farmer in an irrigated district. The irrigation farmer has largely under his control one of the most important factors in determining the yield and quality of his crops and one over which all other farmers have little control at all. On the other hand, in an arid district there is generally less available irrigation water than is needed to give the optimum amount to all the land, or if one region receives an excess there is generally an accumulation of alkali …
Circular No. 47 - Celery Culture For Utah, T. H. Abell
Circular No. 47 - Celery Culture For Utah, T. H. Abell
UAES Circulars
At one time practically all the celery consumed in Utah was shipped from California and eastern states. It was soon discovered, however, that celery could be raised in Utah, and as the population increased more and more acres were utilized in the production of this crop. Very little found its way to the outside markets, but what little did get out was well received because of its very high quality. Men who travel say that "Utah Celery" on the menu on trains and in hotels means the best there is in celery.
Within recent years several carloads have been shipped …
A Study Of The Environmental Conditions Influencing The Development Of Stem Rust In The Absence Of An Alternate Host. I. The Viability Of The Urediniospores Of Puccinia Graminis Tritici Form Iii, George L. Peltier
Nebraska Agricultural Experiment Station: Historical Research Bulletins
No exact data are at hand regarding the influence of temperature and relative humidity on the viability of the urediniospores of stem rust under controlled conditions. 1. The influence of relative humidity on the viability of the urediniospores of Puccinia graminis tritici Form III is very pronounced and closely associated with temperature. 2. At high relative humidities, depending somewhat on the temperature, the percentage of germination is low and the period over which the spores are viable is very short. 3. The same relation exists at the low relative humidities except that it is not so pronounced and is more …
Corn Investigations, T. A. Kiesselbach
Corn Investigations, T. A. Kiesselbach
Nebraska Agricultural Experiment Station: Historical Research Bulletins
The purpose of the investigations reported in this bulletin has been primarily to determine some of the underlying principles involved in corn improvement. The work comprises a study of some of the physiological characteristics of the crop together with a comparison of various selection, breeding, and cultural practices in their relation to grain yield.
Circular No. 46 - Thirty Years Of Agricultural Experiments In Utah, F. S. Harris, N. I. Butt
Circular No. 46 - Thirty Years Of Agricultural Experiments In Utah, F. S. Harris, N. I. Butt
UAES Circulars
The Utah Agricultural Experiment Station has been established over thirty years. During this time more than a hundred experimenters have worked on the staff, each one contributing something to aid in the researches that have been conducted. During the first few years regular annual reports were published, but during recent years no such reports have been issued. The results of the work of the Station have been published in station bulletins and circulars and in various technical journals.
Since there is no publication or series of publications that records all the activities of the Station it was thought desirable at …