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Articles 251821 - 251850 of 256517
Full-Text Articles in Entire DC Network
Bulletin No. 167 - The Irrigation Of Oats, F. S. Harris, D. W. Pittman
Bulletin No. 167 - The Irrigation Of Oats, F. S. Harris, D. W. Pittman
UAES Bulletins
It is well known to farmers that the oat plant is more sensitive to the moisture condition of the soil than are many of the other farm crops. For this reason oats find favor as an irrigated crop, since under irrigation the supply of water can be so easily controlled.
In order to secure the best results, it becomes necessary to know as much as possible about the moisture requirements of the various crops that are to be irrigated. This is particularly true of oats on account of their sensitiveness. The farmer should know at which period in the life …
Farm Types In Nebraska, As Determined By Climatic, Soil, And Economic Factors, R. R. Spafford
Farm Types In Nebraska, As Determined By Climatic, Soil, And Economic Factors, R. R. Spafford
Nebraska Agricultural Experiment Station: Historical Research Bulletins
This bulletin treats chiefly of Nebraska agricultural areas as determined by climatic, soil, and economic factors. Most of the subject matter centers about the kind of farm crops grown and their yields. Cultural practices applied to crops are only incidentally considered. Most of the data used are from the Thirteenth Census of the United States and cover the crop year 1909. The small amount of data not derived from this source comes largely from field studies in this State and is used merely to support certain methods of treating census data.
On A Species Of Hedruris Occurring Commonly In The Western Newt, Notophthalmus Torosus, Asa C. Chandler
On A Species Of Hedruris Occurring Commonly In The Western Newt, Notophthalmus Torosus, Asa C. Chandler
Harold W. Manter Laboratory of Parasitology: Library Materials
It has recently been pointed out by Ward and Magath (1916) that the nematode fauna of North American freshwater fishes is almost unknown. From a survey of the literature this state of affairs appears to be almost if not quite as true of the nematodes of other cold-blooded vertebrates in North America.
While making stomach examinations of the Western Newt or water-dog, Notophthalmus torosus, the writer found a large percent of specimens captured in the vicinity of Corvallis, Oregon, infested by a nematode which was evidently a species of Hedruris. The structure and ecology of this worm are …
Effect Of Grazing Upon Aspen Reproduction, Arthur W. Sampson
Effect Of Grazing Upon Aspen Reproduction, Arthur W. Sampson
Aspen Bibliography
It is desirable that on lands bearing a stand of aspen (Populus tremuloides)1 a proper balance be maintained between timber production and grazing.
Neocorynura, A Genus Of Halictine Bees (Hym.), T. D. A. Cockerell
Neocorynura, A Genus Of Halictine Bees (Hym.), T. D. A. Cockerell
Co
No abstract provided.
The Philippine Bees Of The Families Anthophoridæ And Melectidæ, T. D. A. Cockerell
The Philippine Bees Of The Families Anthophoridæ And Melectidæ, T. D. A. Cockerell
Co
No abstract provided.
The Prosopidæ, Or Obtuse-Tongued Bees Of The Philippine Islands, T. D. A. Cockerell
The Prosopidæ, Or Obtuse-Tongued Bees Of The Philippine Islands, T. D. A. Cockerell
Co
No abstract provided.
New And Little-Known American Bees, T. D. A. Cockerell
Ua12/2/1 Normal Heights, Vol. 3, No. 1, Western Kentucky University
Ua12/2/1 Normal Heights, Vol. 3, No. 1, Western Kentucky University
WKU Administration Documents
Newsletter and course catalog promoting Western Kentucky University. This issue focuses on rural education.
Contributions To A Knowledge Of The Natural Enemies Of Phyllophaga, John J. Davis
Contributions To A Knowledge Of The Natural Enemies Of Phyllophaga, John J. Davis
Da
No abstract provided.
The Social Bees Of The Philippine Islands, T. D. A. Cockerell
The Social Bees Of The Philippine Islands, T. D. A. Cockerell
Co
No abstract provided.
A New Genus Of Bees From Peru (Hym.), T. D. A. Cockerell
The Philippine Bees Of The Family Nomadidæ, T. D. A. Cockerell
The Philippine Bees Of The Family Nomadidæ, T. D. A. Cockerell
Co
No abstract provided.
Descriptions And Records Of Bees - Lxxxvii, T. D. A. Cockerell
Descriptions And Records Of Bees - Lxxxvii, T. D. A. Cockerell
Co
No abstract provided.
Descriptions And Records Of Bees - Lxxxiv, T. D. A. Cockerell
Descriptions And Records Of Bees - Lxxxiv, T. D. A. Cockerell
Co
No abstract provided.
Circular No. 40 - Potato Production, George Stewart
Circular No. 40 - Potato Production, George Stewart
UAES Circulars
Potatoes were the first crop planted in Utah. In July, 1847, the Mormon pioneers turned the water from City Creek over the parched land near what is now the center of Salt Lake City. The ground was then broken and sown at once to potatoes. Only a small yield was obtained but this helped materially to eke out the meagre food supply until the harvest of 1848. During the several hard years that followed, potatoes were among the most important foods for the pioneer settlers. Since then, they have held a prominent place in the agriculture of the State. Just. …
Bees In The Collection Of The United States National Museum. -3, T. D. A. Cockerell
Bees In The Collection Of The United States National Museum. -3, T. D. A. Cockerell
Co
No abstract provided.
Circular No. 36 - Practical Information On The Measurement Of Irrigation Water, O. W. Israelsen
Circular No. 36 - Practical Information On The Measurement Of Irrigation Water, O. W. Israelsen
UAES Circulars
The economical use of water in irrigation depends primarily on water measurement. That significant advantages, public and private, attend the measurement of water delivered to individual irrigators has long been recognized in older irrigated countries. The rapidly increasing utilization of Utah's available water supply, the consequent increase in its value, and the tendency on the newer canal systems to base the annual irrigation charges on the amount of water used make an understanding of the methods of water measurement an absolute necessity. Furthermore, many irrigators now realize that the vast store of information concerning the relations of water, soils, and …
Circular No. 37 - Field Beans, George Stewart
Circular No. 37 - Field Beans, George Stewart
UAES Circulars
Tho a new crop in Utah, field beans promise to become of considerable importance. By this, it is not meant that Utah will soon be a leading bean-producing commonwealth. Nevertheless, the next few years will witness a rapid development of the bean-growing industry.
Their leguminous characteristics make beans a valuable crop in rotation systems. This is particularly true now that the virgin condition of our soils will soon disappear where it has not already done so. Beans are adapted both to dry-farming and to irrigation; their growing season is relatively short, permitting the fall planting of wheat after their harvest; …
New Psammocharidae And Philanthidae, Nathan Banks
New Psammocharidae And Philanthidae, Nathan Banks
An
The following new species are mostly from the northern and northwestern parts of the United States or from Canada.
Notes And Descriptions Of Some Fossorial Hymenoptera, Nathan Banks
Notes And Descriptions Of Some Fossorial Hymenoptera, Nathan Banks
An
Below are a few descriptions and notes on Philanthidae and Scoliidae.
Die Bienenfauna Pommerns, Paul Blüthgen
A New Tachytes From Georgia (Hymenop.: Larridae), James Chester Bradley
A New Tachytes From Georgia (Hymenop.: Larridae), James Chester Bradley
Bo
No abstract provided.
Halictinae De Cuba, Carl F. Baker
Halictinae De Cuba, Carl F. Baker
An
Las Halictinae, especialmente en los zonas templadas, forman uno de los grupos más grandes de abejas silvestres, y son de interés biológico especial en cuanto al importante papel que juegan en la polinización de las plantas. Ninguna abeja de este género es grande y en su mayoría son pequeñas. Al-gunas són de color colorado brillante pero la mayor parte carece de adornos. Las alas anteriores tienen el estigma muy desarrollado, dos ó tres células submarginales y la vena basal muy encorvada. Todas las hembras tienen en el último segmento dorsal un canal, llamado la rima, que á menudo se extiende …
The Ecological Relations Of Roots, John E. Weaver
The Ecological Relations Of Roots, John E. Weaver
Papers of John E. Weaver (1884–1956)
Although considerable progress has been made in the study of root systems of desert plants (Cannon, 1911, 1913; Markle, 1917), very little information is available concerning the roots of other native species. During 1914 the writer investigated the root systems of the prairie plants of southeastern Washington, where the annual precipitation is only 21.6 inches and occurs mostly in the period of rest: Since that time it has been planned to make a comparative study of the roots of prairie plants growing in a more humid region and where the precipitation occurs mostly during the season of plant growth. The …
Anthrax: Transmisson Of Infection By Non-Biting Flies, Harry Morris
Anthrax: Transmisson Of Infection By Non-Biting Flies, Harry Morris
LSU Agricultural Experiment Station Reports
No abstract provided.
The Roundheaded Apple-Tree Borer, Fred E. Brooks
The Roundheaded Apple-Tree Borer, Fred E. Brooks
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
The Apple Tree has no more destructive insect enemy than the roundheaded apple-tree borer. It is the grub of a rather large white and brown striped beetle, which usually requires from two to three years to complete its life cycle.
It is found throughout the eastern half of the United States and southeastern Canada, attacks trees of all ages, but is most destructive to young trees up to 10 years old.
Besides the apple, it attacks the quince and pear among cultivated fruits, and the wild crab, service, mountain ash, chokeberry, seedling apple, and some other wild or native trees. …
Bees From British Guiana, T. D. A. Cockerell
Some Bees Collected In Queensland, T. D. A. Cockerell
Circular No. 34 - Sugar-Beet Production In Utah, F. S. Harris, N. I. Butt
Circular No. 34 - Sugar-Beet Production In Utah, F. S. Harris, N. I. Butt
UAES Circulars
Utah is one of the pioneers in the beet-sugar industry. The first sugar factory was brought into the State in 1852, but, like all the early attempts to produce sugar from beets in the United States, the enterprise was unsuccessful. In 1891 a factory was erected at Lehi when there were less than a half a dozen factories in the United States. From this time on Utah has been one of the few states of the Union important in the manufacture of beet sugar. Since soil, climate, irrigation, and labor conditions are favorable to the crop, it is probable that …