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The Fertilization-Reaction In Echinarachnius Parma. Vi. The Necessity Of The Egg Cortex For Fertilization, E. E. Just

Faculty Reprints

No abstract provided.

Phases Of Poultry Work (Caponizing And Capons), Clara M. Sutter

SDSU Extension Circulars

No farmer in South Dakota would think of keeping all male animals for breeding purposes unless he had an opportunity to sell them to other breeders, for he ·would realize that the price on the open market would be much less than for castrated animals. It is a well-known fact that castration changes the male animal so that it is easily handled, less nervous and excitable, and more easily fattened. Therefore, all male sheep, hogs, cattle, and horses not need for breeding purposes are subjected to this operation while young.

Phases Of Poultry Work (How To Show Poultry), Clara M. Sutter

SDSU Extension Circulars

To those who are exhibiting for the first time there comes many a question in regard to the selection of the birds to be shown and the preparations to be made after they have been chosen. The birds chosen must conform as nearly as possible to the standard for the breed if they are to be among those to win a prize. The exhibitor should think of the prize, not as so much money or as a much desired article, but as a sign of an achievement, a piece of work well done.

Phases Of Poultry Work (Feeding For Market), Clara M. Sutter

SDSU Extension Circulars

Since fully 75 percent of all poultry shipped from the farm to the market are not fat enough to kill, the subject of feeding is an important one. When the live fowls arrive at the packing plant, they are placed in crates to be fattened for from five to fourteen days, according to age and condition, before being killed. Sometimes men buy the poultry from the farms at a low rate, fatten for the required length of time, then sell to the packer, thus making the money for the quick gain that the producers might have had for a little …

Phases Of Poultry Work (Diseases Of Young Chicks), Clara M. Sutter

SDSU Extension Circulars

Feeding too soon, crowding, chilling, or overheating caused the death of many young chicks. Much loss is cause by saving the weak or crippled chicks which were not strong enough to get out of the shell by themselves. This is a mistake for by making these and watching carefully it has been found that about 2 percent live and these are never strong healthy chicks. They are the first to get disease, often spreading it among the healthy ones.

Corn Diseases And Insects, Ralph E. Johnston, George H. Valentine

SDSU Extension Circulars

In this circular, created by the Agricultural Extension Service at South Dakota State College, the information provided focuses on caring for corn crops through prevention of diseases and insect infestations. This information is provided through the guidance of the Agriculture Department.

Experimental Pollination; An Outline Of The Ecology Of Flowers And Insects 5. Pollinators And Flowers Visited & 6. Flowers And Their Visitors, Frederic E. Clements, Frances L. Long

Ca

No abstract provided.

The Fertilization-Reaction In Echinarachnius Parma. Vi. The Necessity Of The Egg Cortex For Fertilization, E. E. Just

Department of Biology Faculty Publications

No abstract provided.

Some Field Instruments And Their Applications, G. W. Goldsmith

University Studies (University of Nebraska) (1888–1984)

Physiology and ecology depend for their constructive development largely upon the applications of physico-chemical concepts to living organisms and their environment, to their life processes, reactions, and interrelations. A concept is valuable biologically in so far as it can be applied and used as a tool for better understanding of the phenomena related to life. Ecology, as the study of the relations between organisms and their environment and of the interrelations of organisms, depends primarily upon the findings of physiology (Clements, 1905). But to apply physicochemical concepts and hence make them of value to the physiologist or ecologist commonly requires …

Bulletin 104 - The Stickfast Flea, John G. C. Campbell

Bulletins 1 - 2999

The insect which forms the subject of this Bulletin has raised great consternation in certain parts of this State by the trouble which it has caused amongst Poultry.

Fleas in general are notorious on account of the discomfort which they cause to man and animals, but, in this country none has a more evil reputation than the Stickfast Flea.

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 …

State Wide Activities Of The College Of Agriculture, Nebraska Agricultural Experiment Station

Nebraska Agricultural Experiment Station: Historical Circulars

The College of Agriculture carries the message of better farming to every corner of the State.

"Hogging Down Crops" : Cost Of Producing Crops And Pork, Albert Franklin Kidder

LSU Agricultural Experiment Station Reports

No abstract provided.

Reglamento General Para La Pesca De La República De Cuba, República De Cuba. Secretaría De Agricultura, Comercio Y Trabajo

Mario Diaz Cruz Pamphlets

Publicado en "Gaceta Oficial" el 28 de Mayo de 1923

Harvesting, Storing And Marketing The Corn Crop, Ralph E. Johnston, George H. Valentine

SDSU Extension Circulars

In this circular, created by the Agricultural Extension Service at South Dakota State College, the information provided focuses on harvesting the corn crop through the guidance of the Agriculture Department.

Initiation Of Development In The Egg Of Arbacia. Ii. Fertilization Of Eggs In Various Stages Of Artificially Induced Mitosis, E. E. Just

Faculty Reprints

No abstract provided.

Initiation Of Development In The Egg Of Arbacia. Iii. The Effect Of Arbacia Blood On The Fertilization-Reaction, E. E. Just

Faculty Reprints

No abstract provided.

Record Book For Milk Testing Club Members, H. M. Jones

SDSU Extension Circulars

This book is for your open personal use. Separate blanks will be provided for making your reports to the County Agent and the State Club Leader. This is simply for your convenience in summarizing. Weigh the milk of each cow to be tested just as often as possible. This should be done for at least two days a month. More frequent weighings would be better. The best and most accurate method is to weigh every day. Record the amount of milk for each cow opposite the day of the month. Suppose that you weigh the milk on the 9 and …

Initiation Of Development In The Egg Of Arbacia. I. Effect Of Hypertonic Sea-Water In Producing Membrane Separation, Cleavage, And Top-Swimming Plutei, E. E. Just

Faculty Reprints

No abstract provided.

Initiation Of Development In The Egg Of Arbacia. Iii. The Effect Of Arbacia Blood On The Fertilization-Reaction, E. E. Just

Department of Biology Faculty Publications

No abstract provided.

Initiation Of Development In The Egg Of Arbacia. I. Effect Of Hypertonic Sea-Water In Producing Membrane Separation, Cleavage, And Top-Swimming Plutei, E. E. Just

Department of Biology Faculty Publications

No abstract provided.

Initiation Of Development In The Egg Of Arbacia. Ii. Fertilization Of Eggs In Various Stages Of Artificially Induced Mitosis, E. E. Just

Department of Biology Faculty Publications

No abstract provided.

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 …

Iii. The Predaceous Enemies Of Ants, Joseph Bequaert

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The various means by which Nature prevents an excessive increase of the species not only forms in itself an interesting chapter of ecology, but its study is also of great importance in an understanding of the true meaning of Natural Selection. In the case of ants it has been contended that they are better defended than other insects against the attacks of predatory animals. Poulton evidently takes this for granted when he considers that ants, together with wasps, are among the favorite models for "mimicking" insects and other arthropods. These ant-like arthropods, having acquired by Natural Selection their resemblance "to …

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

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 …

On Rearing Sexually Mature Ptaynereis Megalops From Eggs, E. E. Just

Department of Biology Faculty Publications

No abstract provided.

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 …

On Rearing Sexually Mature Ptaynereis Megalops From Eggs, E. E. Just

Faculty Reprints

No abstract provided.

Farm Record Keeping And The Application Of Business Principles To Farming, M. R. Benedict, H. D. Mccullough

SDSU Extension Circulars

How to make his farm return enough profit for a wholesome, worth while living and provide for moderate saving is the problem confronting every farmer to-day. Every farm family wants a comfortable home, schooling for the children, electric lights, running water, and the other comforts of life, but usually these things cannot be had unless the farm is made to pay as a business proposition. Farming is not and never has been a means of getting rich quickly or easily. It is a substantial and necessary occupation offering many advantages. On the other hand, it seldom has paid the farmer …