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J. C. Penney: The Man, The Store And American Agriculture (Under Contract), David Delbert Kruger 2017 University of Wyoming

J. C. Penney: The Man, The Store And American Agriculture (Under Contract), David Delbert Kruger

David Delbert Kruger

No abstract provided.


Intentional Mentoring Through 4-H: The Role Of 4-H In A Successful Mentoring Program Between Youth And Adults, Emily Ann Shepperd 2017 Utah State University

Intentional Mentoring Through 4-H: The Role Of 4-H In A Successful Mentoring Program Between Youth And Adults, Emily Ann Shepperd

All Graduate Theses and Dissertations

4-H Youth and Families with Promise (4-H YFP) is a one to one youth mentoring program that aims to help youth obtain skills that will help them to be successful. The purpose of this research was to determine if any positive outcomes were shown of youth participating in 4-H YFP. Positive outcomes were identified as peer social competence, greater ability to make positive choices, the development of effective communication skills, building connections, and contributing to the community. Results show that these outcomes positively increased among youth participants in the 4-H YFP program- but the changes were too small to be ...


Promising New Cherries, J. L. Budd 2017 Iowa Agricultural College

Promising New Cherries, J. L. Budd

Bulletin (Iowa Agricultural Experiment Station)

In the summer of 1882 the writer had a fine opportunity for studying the character of tree and fruit of the European cherries from the valley of the Moselle in East France, eastward to the Volga in Russia. In the spring of 1883 we imported one year old trees o f the varieties which we decided to be most promising for trial on the prairies of the Northwest. These trees were set in orchards and have had hard U 6 a g e , as they have been exposed to the recent test summers and winters, that have killed out the ...


Arsenic Experiments, C. P. Gillette 2017 Iowa Agricultural College

Arsenic Experiments, C. P. Gillette

Bulletin (Iowa Agricultural Experiment Station)

The great value of arsenic in the forms of Paris green and London purple for the destruction of leaf-eating insects has long been recognized. As pure white arsenic in solution is occasionally recommended to take the place of the above named arsenites, and as I have been repeatedly urged to recommend its use on account of its greater strength and cheapness, the following experiments were mailed for the purpose of determining whether or not it can be safely used in this way for insecticidal purposes:

One part of arsenic is soluble in 10 parts of boiling water and in 100 ...


A Few Important Chinch Bug Remedies, C. P. Gilette 2017 Iowa Agricultural College

A Few Important Chinch Bug Remedies, C. P. Gilette

Bulletin (Iowa Agricultural Experiment Station)

wet backward spring and well distributed summer rains have saved Iowa from extensive chinch-bug losses this year. The bugs have been reported, however, in injurious numbers over limited areas, in various parts of the state. There probably is no year when there are not bugs enough in many localities to do much harm, if the climatic conditions are favorable, and, as we have noway of knowing when a chinch-bug year is coming until it is upon us, it is exceedingly important that some systematic method of combating this evil be fixed upon by the farming communities.


Grasses And Other Forage Plants, A. A. Crozier 2017 Iowa Agricultural College

Grasses And Other Forage Plants, A. A. Crozier

Bulletin (Iowa Agricultural Experiment Station)

About seventy-live kinds of grasses and other forage plants were sown last spring. A considerable number of these were in one-eighth-acre plots, with a thin seeding of rye for protection. The rye proved to be the winter, instead of the spring variety, as was intended, and it grew so rank as to cover the ground and greatly injure the grasses. It was cut and removed July 7, but the weather following was so hot and dry that some of the kinds failed to recover. In addition to this, a severe attack of chinch bugs occurred in the* latter part of ...


Line Of Chemical Work: Fodder, G. E. Patrick 2017 Iowa State College

Line Of Chemical Work: Fodder, G. E. Patrick

Bulletin (Iowa Agricultural Experiment Station)

The chemical laboratories being the last rooms in the Station building to be completed, were not fully equipped and ready for work until the middle of the present month (August), hence the amount of work yet accomplished is but small; and, as it is only the beginning of a line of work to be continued through several months, report upon it will be reserved for a future bulletin.


Corn Tassels, Silks And Blades, R. P. Speer 2017 Iowa Agricultural College

Corn Tassels, Silks And Blades, R. P. Speer

Bulletin (Iowa Agricultural Experiment Station)

Large com crops in Iowa, point to general prosperity; but poor com means more or less want and suffering, as it is the crop upon which people depend most for a living. Good farmers have grown 75 bushels of corn per acre frequently in Iowa in ordinary seasons; but generally, the average yield per acrc is not more than half of the number of bushels just named. The causes of the difference between good and poor crops can be traced easily, to differences between the methods of preparing and tilling the soil and differences between varieties of corn. On the ...


Optimal Information Acquisition Under A Geostatistical Model, Gregory R. Pautsch, Bruce Babcock, F. Jay Breidt 2017 Iowa State University

Optimal Information Acquisition Under A Geostatistical Model, Gregory R. Pautsch, Bruce Babcock, F. Jay Breidt

Bruce Babcock

Studies examining the value of switching to a variable rate technology (VRT) fertilizer program assume producers possess perfect soil nitrate information. In reality, producers estimate soil nitrate levels with soil sampling. The value of switching to a VRT program depends on the quality of the estimates and on how the estimates are used. Larger sample sizes, increased spatial correlation, and decreased variability improve the estimates and increase returns. Fertilizing strictly to the estimated field map fails to account for estimation risk. Returns increase if the soil sample information is used in a Bayesian fashion to update the soil nitrate beliefs ...


Notes On Crossing, A. A. Crozier 2017 Iowa Agricultural College

Notes On Crossing, A. A. Crozier

Bulletin (Iowa Agricultural Experiment Station)

For a long time the florist has been indebted to crossing and hybridizing for many of his best productions, but less has been done to improve our grains, fruits and vegetables by this means. Crossing is not a substitute for selection * s a means of improving plants, but it is a valuable addition to that method, and often enables one to arrive at more direct and definite results.


Organization, Work Already Performed, Future Work Of The Station, R. P. Speer 2017 Iowa Agricultural College

Organization, Work Already Performed, Future Work Of The Station, R. P. Speer

Bulletin (Iowa Agricultural Experiment Station)

During the first part of the present century so many fields had become impoverished by unskillful tillage, in Europe, that Germany, France and other Nations were compelled to establish large numbers of Agricultural Colleges and Experiment Stations, to prevent further deterioration of the soil, and serious suffering from want of food. Since the establishment of such Colleges and Experiment Stations the productiveness of the soil (i. e., in Germany), has increased steadily under the influence of improved methods of agriculture. In all of the oldest sections of this country the average crop of wheat, com. cotton, etc., have declined so ...


Front Matter, 2017 Iowa State University

Front Matter

Bulletin (Iowa Agricultural Experiment Station)

No abstract provided.


Studies On The Determination Of Sulfur As Barium Sulfate, Philip L. Blumenthal, S. C. Guernsey 2017 Iowa State College

Studies On The Determination Of Sulfur As Barium Sulfate, Philip L. Blumenthal, S. C. Guernsey

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

1. The conditions affecting the accuracy of sulfur determination by barium chloride precipitation have been studied, using potassium and sodium sulfates.

2. The effect of sodium, calcium and magnesium salts has been investigated, under conditions approximating those of insecticide analysis.

3. A definite set of conditions is quoted, which if strictly observed, will yield fairly accurate analyses. For more accurate work, a method of checking by analysis of a synthetic solution is advocated.

4. The theory of the contamination of barium sulfate by extraneous substances is discussed, and the experimental data throw further light upon the nature of the adhesion ...


Bacterial Activities And Crop Production, Percy Edgar Brown 2017 Iowa State College

Bacterial Activities And Crop Production, Percy Edgar Brown

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Until the present time studies in soil bacteriology have dealt almost exclusively with the occurrence and activities of microorganisms in the soil and no attempt has been made to interpret experimental results from the standpoint of crop production. This is due, of course, to the fact that as a science soil bacteriology is scarcely out of its infancy and the preliminary investigations in any science must of necessity deal mainly with underlying principles and such studies are always apt to be rather fragmentary in character.


Determination Of Amino Acids And Nitrates In Soils: Amino Acids, Ammonia And Nitrates In Manured And Limed Soil, R. S. Potter, R. S. Snyder 2017 Iowa State College

Determination Of Amino Acids And Nitrates In Soils: Amino Acids, Ammonia And Nitrates In Manured And Limed Soil, R. S. Potter, R. S. Snyder

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

In view of the fact that no data had ever been obtained on the quantitative relationships of the organic material in the soil by such methods as would preclude a chemical transformation, two things seemed desirable, in continuing the humus investigations at the Iowa Agricultural Experiment Station. First, to attempt the analysis of the organic material of the soil without subjecting it to hydrolysis or other chemical change, and second, to correlate the proportionate quantities of the compounds or classes of compounds found with the kind of soil, its history, treatment, fertility, etc.


Relation Of Moisture To Seed Production In Alfalfa, J. N. Martin 2017 Iowa State College

Relation Of Moisture To Seed Production In Alfalfa, J. N. Martin

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

As a result of the experiments carried on to determine the effect of moisture upon seed production in alfalfa, the following conclusions have been drawn, based upon the work of the experiments as presented in this bulletin:

1. The setting of seed pods in alfalfa, (Medicago sativa), is dependent upon the proper functioning of the pollen.

2. Germination of the pollen depends upon a proper supply (l! moisture. If the water supply is either above or below a certain requirement, the pollen does not germinate.

3. The water requirement for germination of the pollen depends upon a certain ratio between ...


Slimy And Ropy Milk, R. E. Buchanan, B. W. Hammer 2017 Iowa State College

Slimy And Ropy Milk, R. E. Buchanan, B. W. Hammer

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

A study of slimy and ropy milk sent for examination to the dairy bacteriological laboratories of Iowa State College has shown the following:

1. Cultures of organisms secured from slimy starters, apparently typical Streptococcus lacticus forms, sometimes showed marked capacity to produce ropiness when inoculated into sterile milk. This slime producing power is evidently a variable characteristic, appearing and disappearing without apparent cause.

2. Associative action of organisms in some cases is responsible for ropiness. Two organisms, neither of which alone can cause ropiness, may, when grown together, cause the medium to become slimy.

3. Bacterium (lactis) viscosum is one ...


Hardiness In The Apple As Correlated With Structure And Composition, S. A. Beach, F. W. Allen Jr. 2017 Iowa State College

Hardiness In The Apple As Correlated With Structure And Composition, S. A. Beach, F. W. Allen Jr.

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The breeding of hardy apples is naturally such a long time proposition that it would be a distinct advantage if by microscopic examination of the wood, by mechanical tests, or by other observations the hardiness of a tree could be determined while it was still in the nursery, The following is a summary of the facts brought out in the investigation of "Hardiness in the Apple as Correlated with Structure and Composition. "

1. The cutting, compression and penetration tests seemed to indicate some correlation between hardiness and hardness, but exceptions were found.

2, Twigs from northern sections, except the forms ...


Bacteriological Studies On Two Yellow Milk Organisms, B. W. Hammer 2017 Iowa State College

Bacteriological Studies On Two Yellow Milk Organisms, B. W. Hammer

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The different milk constituents vary greatly in their susceptibility to the action of the bacteria that make up the flora commonly found in milk. At ordinary temperatures in raw milk, the lactose is soon attacked and acid formed, but if the acid producing organisms are destroyed by some such procedure as heating, pronounced changes soon take place in the casein. The fat is one of the milk constituents that is more resistant to bacterial action, yet even in it striking changes are observed under certain conditions. Some of the common milk organisms, even some of the acid producing types, are ...


Bacteriological Studies On The Coagulation Of Evaporated Milk, B. W. Hammer 2017 Iowa State College

Bacteriological Studies On The Coagulation Of Evaporated Milk, B. W. Hammer

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The value of milk as a food has led to many attempts at its preservation until at the present time various kinds of dried and canned milks are manufactured. The canned milks, because of the water contained in them, are open to bacteriological changes unless the action of microorganisms is overcome by either killing those present or by making the conditions unsuited to their growth.


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