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Effect Of Harvesting, Spacing And Age Of Plants On Yields Of Asparagus, E. S. Haber 2017 Iowa State College

Effect Of Harvesting, Spacing And Age Of Plants On Yields Of Asparagus, E. S. Haber

Bulletin (Iowa Agricultural Experiment Station)

Although Iowa has never ranked high among the states as a producer of asparagus for market or canning, the asparagus acreage planted, particularly by canners, is increasing.

No exact information is available concerning the effect of the cutting season’s length upon yields over a period of years. Market gardeners usually stop cutting asparagus in Iowa between June 1 and June 15. The demand for asparagus at this time decreases and the prices drop too low for profitable harvesting. To prevent damage to future yields, June 15 also appears to be the latest safe harvest date, though no substantiating experimental ...


Changing Status Of The Iowa Dairy Industry, Albert Mighell 2017 Iowa State College

Changing Status Of The Iowa Dairy Industry, Albert Mighell

Bulletin (Iowa Agricultural Experiment Station)

Even a most superficial study of the Iowa dairy industry indicates its economic importance to the state. Dairying utilizes a huge physical production plant, spread out on almost 200,000 Iowa farms, and extensive processing and marketing facilities including creameries, ice cream plants, milk distributing agencies, cheese factories and condenseries. Together these constitute one of the states largest industries, providing about 16 percent of the income of Iowa farmers, and an important and dependable share of the income of townspeople.

No one group alone is interested in and responsible for the success of the Iowa dairy industry. The farmer or ...


The Food Consumption Habits Of 145 Iowa Farm Families, P. Mabel Nelson, Elizabeth E. Hoyt, Laura McLaughlin, Ethel Cessna Morgan 2017 Iowa State College

The Food Consumption Habits Of 145 Iowa Farm Families, P. Mabel Nelson, Elizabeth E. Hoyt, Laura Mclaughlin, Ethel Cessna Morgan

Bulletin (Iowa Agricultural Experiment Station)

The food consumption habits of 145 Iowa farm families were studied from records of expenditures for food and of food produced by farms during one year. Forty-three families in the central part of the state near Ames, 49 families in the southwestern part near Corning, and 53 families near Oelwein in the northeastern part of the state cooperated in the study.

The nutritive values of the respective diets were calculated for the families in the Ames group and for the average of the families in each of the other two groups.

The energy values of these diets and their content ...


Index Number Of Iowa Farm Products Prices, Gertrude M. Cox 2017 Iowa State College

Index Number Of Iowa Farm Products Prices, Gertrude M. Cox

Bulletin (Iowa Agricultural Experiment Station)

The present Iowa farm price index has been in use since 1926. It is widely employed as a measure of the general level of Iowa farm prices and appears each month in the price barometer published in Agricultural Economic Facts2. A few years ago Peck3 developed a farm lease, known as the sliding scale lease, in which the rental payments are based on and vary with the changes in the index number. More recently, contracts covering land sales have been devised in which the interest payments and in some cases also the principal payments are based on this ...


The Agricultural And Industrial Demand For Corn, Geoffrey Shepherd, John J. Dalton, J. H. Buchanan 2017 Iowa State College

The Agricultural And Industrial Demand For Corn, Geoffrey Shepherd, John J. Dalton, J. H. Buchanan

Bulletin (Iowa Agricultural Experiment Station)

The World War marked a turning point in the history of corn production in the United States. Previous to the World War the trend of corn production in this country was steadily rising. Since 1920, however, it has declined because of decreases both in yield and acreage.

From 1900 to 1920, the United States’ corn crop averaged 68 percent of the world crop of corn, the annual percentages fluctuating about a horizontal trend. Since the World War, however, the United States’ proportion of the world corn crop has been declining. The trend declined to 55 percent in 1933. Corn production ...


Rapid Acid Tests For Cream, E. W. Bird, D. F. Breazeale 2017 Iowa State College

Rapid Acid Tests For Cream, E. W. Bird, D. F. Breazeale

Bulletin (Iowa Agricultural Experiment Station)

The Farrington rapid acid test has been employed for many years by the fluid milk industry for grading samples on the borderline of acidity set for their purchase. In performing the test, neutralizing solutions (containing phenolphthalein) used are of such strength that 1 dipper of solution added to 1 dipper (of the same size) of milk gives a pink mixture if the milk is 0.1 percent acid or less; 2 dippers of neutralizing solution grade at the 0.2 percent point and so on. By adjusting the neutralizing strength the grades corresponding to 1 and 2 dippers of neutralizing ...


Economic Phases Of Erosion Control In Southern Iowa And Northern Missouri, Rainer Schickele, John P. Himmel, Russell M. Hurd 2017 Iowa State College

Economic Phases Of Erosion Control In Southern Iowa And Northern Missouri, Rainer Schickele, John P. Himmel, Russell M. Hurd

Bulletin (Iowa Agricultural Experiment Station)

The Soil Erosion Service of the United States Department of Agriculture has 32 Erosion Control Projects under way in 31 states. More projects will be initiated in the near future. One of these demonstrational and experimental projects embraces about 152,000 acres of the Big Creek watershed area in Ringgold and Decatur counties, Iowa, and Harrison County, Missouri. The headquarters for this project of the Soil Erosion Service are at Bethany, Mo.

The government invites the farmers of this area to enter a cooperative agreement, under which the Soil Erosion Service agrees to assist the farmer in controlling erosion, and ...


Control Of Cherry Yellow-Leaf On Nursery Stock, George L. McNew, Donald E. Bliss 2017 Iowa State College

Control Of Cherry Yellow-Leaf On Nursery Stock, George L. Mcnew, Donald E. Bliss

Bulletin (Iowa Agricultural Experiment Station)

Yellow-leaf, caused by the fungus Coccomyces hiemalis Higgins, is the most prevalent and destructive cherry disease in Iowa, since it often causes premature defoliation of both nursery and orchard trees. Early defoliation in nursery stock results in decreased growth during the current and subsequent years, and precludes all possibility of forcing the trees into marketable size in one growing season. In the orchard, defoliation may decrease fruit bud formation and vegetative growth and increase the amount of winterkilling.

All defoliated nursery stock must be held in the nursery row a second season, and even then many of the trees must ...


Choosing Legumes And Perennial Grasses, F. S. Wilkins, H. D. Hughes 2017 Iowa State College

Choosing Legumes And Perennial Grasses, F. S. Wilkins, H. D. Hughes

Bulletin (Iowa Agricultural Experiment Station)

Many letters are received annually by the Iowa Agricultural Experiment Station requesting information on the different legumes and grasses. This publication has been prepared to answer the more important questions pertaining to the choice of legumes and grasses for different uses and conditions.2

Legumes of greatest value for different uses or soil conditions in Iowa are (1) alfalfa, (2) medium red clover, (3) mammoth red clover, (4) alsike clover, (5) white clover, (6) the biennial white and yellow sweet clovers, (7) hubam clover, (the annual white sweet clover) (8) Korean lespedeza, (9) dalea and (10) soybeans. A discussion of ...


Tests For Cream Sediment, E. W. Bird, D. F. Breazeale, H. P. Guest 2017 Iowa State College

Tests For Cream Sediment, E. W. Bird, D. F. Breazeale, H. P. Guest

Bulletin (Iowa Agricultural Experiment Station)

Commercial milk plants have employed the sediment test for milk for many years. In fact, the milk sediment test has its place on the milk score card. The amount of sediment is always determined in scoring milk. The test is extremely simple; it consists of passing 1 pint of milk through a sediment tester and catching the sediment present in the milk on a circular pad 1 inch in diameter.

The application of a sediment test to cream, on the other hand, has been attempted only very recently. A test as simple as that for milk is impossible. The cream ...


Functional Diseases Of The Apple In Storage, H. H. Plagge, T. J. Maney, B. S. Pickett 2017 Iowa State College

Functional Diseases Of The Apple In Storage, H. H. Plagge, T. J. Maney, B. S. Pickett

Bulletin (Iowa Agricultural Experiment Station)

A systematic study of the storage diseases of apples includes the consideration of two general groups: (a) the functional, and (b) the parasitic diseases. Although most kinds of parasitic diseases are seldom found on good grades of apples, occasionally some of these escape inspection and develop considerably on ripe, fruit in storage. The fruit grower who is concerned with producing sound fruit is familiar with such parasitic diseases as apple scab, apple blotch and cedar-apple rust. The fruit dealer, storage operator and consumer, on the other hand, more frequently come in contact with the functional diseases such as Jonathan spot ...


Farm Land And Debt Situation In Iowa, 1935, William G. Murray, Willard O. Brown 2017 Iowa State College

Farm Land And Debt Situation In Iowa, 1935, William G. Murray, Willard O. Brown

Bulletin (Iowa Agricultural Experiment Station)

Corporate-owned land amounted on January 1, 1935, to 10.1 percent of the 34 million acres of farm land in Iowa.

Insurance companies hold over half the corporate-owned land, with deposit banks the second largest holder.

Centers of concentration are in the south-central, north-central and a small area in the western part of the state.

The Iowa farm mortgage debt was reduced by $74,000,000 during 1934, and now totals $924,000,000, of which 40 percent is held by insurance companies, 26 percent by the Farm Credit Administration and 12 percent by banks The debt per acre was ...


The Destination Of Iowa’S Commercial Oats, Ronald C. Bentley 2017 Iowa State College

The Destination Of Iowa’S Commercial Oats, Ronald C. Bentley

Bulletin (Iowa Agricultural Experiment Station)

The major part of Iowa’s commercial oats is produced in the north central and northwestern counties of Iowa. Some of these counties ship annually an average of from 60 to 69 percent of their total production. Three-fifths, of the 56 million bushels loaded for commercial shipment reach Iowa’s primary markets on first billing. The seasonal flow of oats to market resembles more nearly that of wheat than of corn.

These facts evolve from a study of carload shipments of oats from each shipping point in Iowa and a further analysis of the destination of from 58 to 83 ...


Land Use And Climatic Factors Structure Regional Patterns In Soil Microbialcommunities, Rebecca E. Drenovsky, Kerri L. Steenworth, Louise E. Jackson, Kate M. Scow 2017 John Carroll University

Land Use And Climatic Factors Structure Regional Patterns In Soil Microbialcommunities, Rebecca E. Drenovsky, Kerri L. Steenworth, Louise E. Jackson, Kate M. Scow

Rebecca E. Drenovsky

Aim Although patterns are emerging for macroorganisms, we have limited under- standing of the factors determining soil microbial community composition and productivity at large spatial extents. The overall objective of this study was to discern the drivers of microbial community composition at the extent of biogeo- graphical provinces and regions. We hypothesized that factors associated with land use and climate would drive soil microbial community composition and biomass. Location Great Basin Province, Desert Province and California Floristic Province, California, USA. Methods Using phospholipid fatty acid analysis, we compared microbial com- munities across eight land-use types sampled throughout the State of ...


The Effects Of Dance Therapy On Patients With Parkinson’S Disease: An Integrative Literature Review, Jennifer Pence 2017 DePaul University

The Effects Of Dance Therapy On Patients With Parkinson’S Disease: An Integrative Literature Review, Jennifer Pence

Grace Peterson Nursing Research Colloquium

Abstract

Parkinson’s disease (PD) is a chronic, progressive, degenerative disease of the nervous system that affects more than one million Americans. Individuals who have PD generally exhibit bradykinesia, postural instability, shuffling steps and freezing during gait. These impairments in motor function cannot be fully addressed with pharmacological treatment and can eventually become unresponsive to this form of treatment. Dance therapy, on the other hand, is one non-pharmacological method that may prove beneficial for PD. It utilizes motor planning skills, which can lead to an improvement in muscle flexibility and balance. The purpose of the systematic integrative literature review was ...


Food Addiction And The Effective Treatment Of Adult Food Addicts: An Integrative Review Of Literature, Sara Bourque 2017 DePaul University

Food Addiction And The Effective Treatment Of Adult Food Addicts: An Integrative Review Of Literature, Sara Bourque

Grace Peterson Nursing Research Colloquium

Abstract

Background: In a survey conducted between the years of 2011 and 2014 it was suggested that 36% of adults in the U.S. were obese with over 40.2% being middle aged adults. Obesity is associated with a number of comorbid conditions including diabetes, heart attacks, and strokes. Due to this it is one of the major factors driving up our annual medical care costs. It is also one of the leading causes of death not only in the U.S. but worldwide. With one third of the adult population in the U.S. being obese food addiction may ...


Rethinking Urban Green Infrastructure As A Means To Promote Avian Conservation, Allen Lau 2017 The University of San Francisco

Rethinking Urban Green Infrastructure As A Means To Promote Avian Conservation, Allen Lau

Master's Projects and Capstones

There is an under-recognized potential for cities to use urban green infrastructure to contribute to avian biodiversity conservation. At the global scale, climate change and growing urbanization are primary global drivers leading to decline and homogenization in world bird populations. Birds are fundamental and intricate species in ecosystems, and even in urban areas, act as indicator and regulator species contributing to healthy ecosystem function. While many cities have recognized the economic and social benefits associated with green spaces, such as the vast benefits ecosystem services provide to the urban dweller, the use of green spaces to concurrently contribute to avian ...


Pilot-Scale Testing Of Non-Activated Biochar For Swine Manure Treatment And Mitigation Of Ammonia, Hydrogen Sulfide, Odorous Volatile Organic Compounds (Vocs), And Greenhouse Gas Emissions, Devin L. Maurer, Jacek A. Koziel, Kajetan Kalus, Daniel S. Andersen, Sebastian Opalinski 2017 Iowa State University

Pilot-Scale Testing Of Non-Activated Biochar For Swine Manure Treatment And Mitigation Of Ammonia, Hydrogen Sulfide, Odorous Volatile Organic Compounds (Vocs), And Greenhouse Gas Emissions, Devin L. Maurer, Jacek A. Koziel, Kajetan Kalus, Daniel S. Andersen, Sebastian Opalinski

Daniel S. Andersen

Managing the environmental impacts associated with livestock production is a challenge for farmers, public and regulatory agencies. Sustainable solutions that take into account technical and socioeconomic factors are needed. For example, the comprehensive control of odors, ammonia (NH3), hydrogen sulfide (H2S), and greenhouse gas (GHG) emissions from swine production is a critical need. Stored manure is a major source of gaseous emissions. Mitigation technologies based on bio-based products such as biochar are of interest due to the potential benefits of nutrient cycling. The objective of this study was to test non-activated (non-functionalized) biochar for the mitigation of gaseous emissions from ...


Ompostable Characteristics Of Reject Materials Produced During Industrial-Scale Corn Stover Biomass To Ethanol Conversion, Kapil Arora, Daniel Andersen 2017 Iowa State University

Ompostable Characteristics Of Reject Materials Produced During Industrial-Scale Corn Stover Biomass To Ethanol Conversion, Kapil Arora, Daniel Andersen

Daniel S. Andersen

Industrial scale corn stover biomass conversion to ethanol is taking its roots in Iowa. Stover, consisting of above-ground corn plant material other than grain (MOG), is baled at harvest and stored on-farms. Stored bales can deteriorate during storage resulting in reject stover unworthy of processing. Bales, that meet the ethanol conversion quality standards, are transported to the processing facility to prepare stover for the ethanol conversion process. Bales, consisting of stover and loose soil, are subjected to grinding and sieving to separate soil from stover, thereby, producing soil stover as a reject material excluded from the ethanol conversion process. Compostable ...


Use Of Imaging Biomarkers To Assess Perfusion And Glucose Metabolism In The Skeletal Muscle Of Dystrophic Mice, Nabeel Ahmad, Ian Welch, Robert Grange, Jennifer Hadway, Savita Dhanvantari, David Hill, Ting-Yim Lee, Lisa M Hoffman 2017 The University of Western Ontario

Use Of Imaging Biomarkers To Assess Perfusion And Glucose Metabolism In The Skeletal Muscle Of Dystrophic Mice, Nabeel Ahmad, Ian Welch, Robert Grange, Jennifer Hadway, Savita Dhanvantari, David Hill, Ting-Yim Lee, Lisa M Hoffman

Lisa Hoffman

BACKGROUND: Duchenne muscular dystrophy (DMD) is a severe neuromuscular disease that affects 1 in 3500 boys. The disease is characterized by progressive muscle degeneration that results from mutations in or loss of the cytoskeletal protein, dystrophin, from the glycoprotein membrane complex, thus increasing the susceptibility of contractile muscle to injury. To date, disease progression is typically assessed using invasive techniques such as muscle biopsies, and while there are recent reports of the use of magnetic resonance, ultrasound and optical imaging technologies to address the issue of disease progression and monitoring therapeutic intervention in dystrophic mice, our study aims to validate ...


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