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1231 full-text articles. Page 5 of 25.

Producer Machinery And Labor Sharing Arrangements Workshops, Roger Ginder, William M. Edwards, Georgeanne M. Artz, Darren H. Jarboe 2016 Iowa State University

Producer Machinery And Labor Sharing Arrangements Workshops, Roger Ginder, William M. Edwards, Georgeanne M. Artz, Darren H. Jarboe

William Edwards

Four case studies were developed for Iowa farm operations that have successfully used machinery and labor sharing arrangements for intergenerational transfer of farm assets. Results were shared at workshops and through publication of a resource manual.


Ag Decision Maker: Combine Ownership Or Custom Hire, William M. Edwards, H. Mark Hanna 2016 Iowa State University

Ag Decision Maker: Combine Ownership Or Custom Hire, William M. Edwards, H. Mark Hanna

William Edwards

Includes advantages and disadvantages of custom hiring and information on estimating costs; includes worksheets.


Insights From Spanish-Speaking Employees In The Iowa Horticultural Industry, Emilie Justen, Cynthia L. Haynes, Ann Marie VanDerZanden, Nancy Grudens-Schuck 2016 Anoka Technical College

Insights From Spanish-Speaking Employees In The Iowa Horticultural Industry, Emilie Justen, Cynthia L. Haynes, Ann Marie Vanderzanden, Nancy Grudens-Schuck

Ann Marie VanDerZanden

Addressing the needs of Latino workers can help improve working conditions, job satisfaction, and productivity of both employees and the companies hiring Latino workers. The study reported here assessed educational needs, communication gaps, and technical skills of Latino workers working in the horticultural industry in Iowa—an ethnic group that is relatively new to Iowa. Focus groups were conducted with Latino workers and produced topics for educational programming and suggestions that could improve communications between predominantly English-speaking managers and Spanish-speaking Latino employees, and the horticultural knowledge of the Latino employees.


New Curriculum: Soil & Water Science And Weather & Climate Science, Natalie Carroll 2016 Purdue University

New Curriculum: Soil & Water Science And Weather & Climate Science, Natalie Carroll

Purdue P-12 Networking Summit & Poster Session

Natalie will present an overview the content of two new (2015) curricula designed for youth in grades 3 through 12. Soil and Water Science; Weather and Climate Science. Three booklets are included in each curriculum. Level 1, for youth in grades 3-5, introduces basic terms and concepts. Level 2 activities, for youth in grades 6-8, help youth put the basic concepts into action to understand more advanced concepts and interactions. Level 3 manuals delve more deeply into important concepts and helps prepare youth to be well informed and for advanced studies at college or university.

  • Level 3 Soil & Water Science ...


The Demand For Agricultural Research By State Governments, Jyoti Khanna, Wallace E. Huffman, Todd Sandler 2016 Iowa State University

The Demand For Agricultural Research By State Governments, Jyoti Khanna, Wallace E. Huffman, Todd Sandler

Wallace Huffman

Public agricultural research in 'the United States is conducted- by state agricultural experiment stations (SAES) and'by the' research agencies of the USDA.. Both have research.'activities 'in ;every state." A. vast^ amount "of research and experiments has shown that the'-performance of plants and to-a lesser extent animals', ' in which! new technologies are frequently-embodied,' is altered by ,local geoclimatic conditions-that; differ within' and between states. Basic research and livestock .research"^ to- some extent lead to new knowledge or technologies that spill widely across^ state boundaries^; '-Thus, public-^ agricultural-.research produces-knowledge .that/is both^ state specific' and general.


Setting Efficient Incentives For Agricultural Research: Lesson From Principal-Agent Theory Ii, Wallace E. Huffman, Richard E. Just 2016 Iowa State University

Setting Efficient Incentives For Agricultural Research: Lesson From Principal-Agent Theory Ii, Wallace E. Huffman, Richard E. Just

Wallace Huffman

At least since the 1950s, studies have shown unusually high productivity of public agricultural research (e.g., Griliches; Huffman and Evenson; Ruttan; Schultz). In response, many have asked why more funds are not allocated to public agricultural research. More recently, following the large budget deficits of the 1980s, funding conditions have tightened and forced both the research agencies of the U.S. Department of Agriculture and many of the state agricultural experiment stations (SAES) into a contracting mode. Under unprecedented budget pressures, administrators and public decision makers have struggled to set priorities to reduce budgets without significant loss of productivity ...


Measuring Public Agricultural Research And Extension And Estimating Their Impacts On Agricultural Productivity: New Insights From Us Evidence, Yu Jin, Wallace E. Huffman 2016 Iowa State University

Measuring Public Agricultural Research And Extension And Estimating Their Impacts On Agricultural Productivity: New Insights From Us Evidence, Yu Jin, Wallace E. Huffman

Wallace Huffman

In order to feed the growing population of the world, expected to reach 9.6 billion people—a 29 percent increase over 2013—by 2050 without causing immense environmental damage and hunger, society must increase agricultural productivity. Investing further in public agricultural research and extension will help alleviate this problem. Developed countries, like the United States, have been a leader in this area for most of the twentieth century. For example, US public agricultural research grew rapidly from 1960–1980, but slowed considerably from 1980–1995, showed negative growth from 1995–1998, then flattened by 2010.


Human Capital: Education And Agriculture, Wallace E. Huffman 2016 Iowa State University

Human Capital: Education And Agriculture, Wallace E. Huffman

Wallace Huffman

This chapter presents a review and synthesis of effects of education in agriculture, summarizes major contributions, and suggests major research gaps in the literature. Although growth in knowledge enables skill acquisition and specialization of labor, which generally raises labor productivity, and technical change, the dominant effect on agriculture has been technical change. A puzzle remains why schooling does not have broader direct impacts in agriculture. Furthermore, as we proxy education or general intellectual achievement by schooling in our empirical research, this has led to biased interpretations of impacts when general intellectual achievement of school graduate changes over time and perhaps ...


Convergence In U.S. Tfp Growth For Agriculture: Implications Of Interstate Research Spillovers For Funding Agricultural Research, Alan McCunn, Wallace E. Huffman 2016 Iowa State University

Convergence In U.S. Tfp Growth For Agriculture: Implications Of Interstate Research Spillovers For Funding Agricultural Research, Alan Mccunn, Wallace E. Huffman

Wallace Huffman

This paper examines state agricultural total factor productivity (TFP) data, 1950- 1982, for evidence of convergence, i.e., TFP growth rates of the future are inversely related to the TFP level at the starting data. After finding evidence of convergence, the paper examines the contributions of public and private R&D to convergence and presents implications for a more efficient organization of public agricultural research. For example, we &id that increasing a states own investment in public agricultural research reduces the rate of TFP convergence but larger public investments in surrounding areas that potentially spilling increase the rate of convergence ...


A Targeted Conservation Approach For Improving Environmental Quality: Multiple Benefits And Expanded Opportunities, Lisa A. Schulte, Heidi Asbjornsen, Ryan Atwell, Chad E. Hart, Matthew J. Helmers, Thomas M. Isenhart, Randy Kolka, Matthew Z. Liebman, Jeri Neal, Matthew E. O'Neal, Silvia Secchi, Richard C. Schultz, Janette R. Thompson, Mark D. Tomer, John C. Tyndall 2016 Iowa State University

A Targeted Conservation Approach For Improving Environmental Quality: Multiple Benefits And Expanded Opportunities, Lisa A. Schulte, Heidi Asbjornsen, Ryan Atwell, Chad E. Hart, Matthew J. Helmers, Thomas M. Isenhart, Randy Kolka, Matthew Z. Liebman, Jeri Neal, Matthew E. O'Neal, Silvia Secchi, Richard C. Schultz, Janette R. Thompson, Mark D. Tomer, John C. Tyndall

Chad Hart

Find out how targeted conservation practices can have the most impact on environmental quality while causing only a small change in overall agricultural production. Environmental benefits are discussed related to clean air and water, productive soils, diverse wildlife and plant habitat, and biological controls for crop protection.


Producer Machinery And Labor Sharing Arrangements Workshops, Roger Ginder, William M. Edwards, Georgeanne M. Artz, Darren H. Jarboe 2016 Iowa State University

Producer Machinery And Labor Sharing Arrangements Workshops, Roger Ginder, William M. Edwards, Georgeanne M. Artz, Darren H. Jarboe

Georgeanne Artz

Four case studies were developed for Iowa farm operations that have successfully used machinery and labor sharing arrangements for intergenerational transfer of farm assets. Results were shared at workshops and through publication of a resource manual.


A Brief History Of Corn: Looking Back To Move Forward, Jon Derek Pruitt 2016 University of Nebraska-Lincoln

A Brief History Of Corn: Looking Back To Move Forward, Jon Derek Pruitt

Doctoral Documents from Doctor of Plant Health Program

Maize was domesticated from teosinte in Mexico some 7,000 to 10,000 years ago and quickly spread through the Americas. It has become one of the most important crops at a local and global level. Two types, Northern Flint corn and Southern Dent corns provided the basis of the genetic background of modern maize hybrids. The development of hybrids, first double-cross and later single-cross hybrids, along with a transition to high input farming provided huge yield increases, which have continued to improve with improving technology.

Increase in maize production also caused a rise in Western corn Rootworm (Diabrotica virgifera ...


Nutritional Deficiencies During The Harvest Season According To Household Consumption And Level Of Nutritional Knowledge: A Case Study Of Northern Mozambique, Maggie Jo Hansen 2016 University of Arkansas, Fayetteville

Nutritional Deficiencies During The Harvest Season According To Household Consumption And Level Of Nutritional Knowledge: A Case Study Of Northern Mozambique, Maggie Jo Hansen

Theses and Dissertations

Mozambique is classified as a low income country, the lowest development classification defined by the World Bank. It is underdeveloped in food security, agricultural production, and nutritional status, and research shows its residents are not foreign to poverty and malnutrition. Low protein, starchy foods (maize, rice, wheat, cassava) comprise the majority of the Mozambican diet; these starchy foods are the most available for consumption. Although availability impacts diet, educational barriers may also threaten the knowledge of nutrition and perceptions of healthy foods. Illiteracy and lack of education are extreme challenges to disseminating nutritional education efforts in the rural Nampula region ...


Meat Quality And Sensory Analysis Of Broiler Breast Fillets With Woody Breast Muscle Myopathy, Jessica Solo 2016 University of Arkansas, Fayetteville

Meat Quality And Sensory Analysis Of Broiler Breast Fillets With Woody Breast Muscle Myopathy, Jessica Solo

Theses and Dissertations

Recently, the poultry industry has encountered an emerging muscle myopathy known as woody breast (WB), which is characterized by hardness throughout the Pectoralis major muscle. Two experiments were performed to assess sensory characteristics and acceptability of WB meat and to determine the effect of broiler age on meat quality factors in varying severities of WB. Fillets were categorized as normal (NORM), moderate (MOD), or severe (SEV) WB. In Experiment 1 (Exp. 1), descriptive (n=9 trained panelists) and consumer (n=74 panelists) sensory analysis was conducted with NORM and SEV fillets at hot and cold serving temperatures (HOTNORM, COLDNORM, HOTSEV ...


Evaluation Of Fungicide Efficacy Against Cercospora Sojina And Selection For Qoi-Fungicide Resistance In Soybean, Alicia Mercedes Cochran 2016 University of Tennessee - Knoxville

Evaluation Of Fungicide Efficacy Against Cercospora Sojina And Selection For Qoi-Fungicide Resistance In Soybean, Alicia Mercedes Cochran

Masters Theses

Frogeye leaf spot (FLS) of soybean is caused by Cercospora sojina. In 2010, resistance to the quinone outside inhibitor (QoI) fungicides was reported. Since then, evaluating FLS for QoI-resistance has been of particular interest in Tennessee and other soybean-producing states. In order to determine alternative fungicide options, fungicides with solo and combination mode of action were tested in 2013-2014. The objectives were,1) to evaluate fungicide efficacy for disease control and yield protection, and 2) evaluate selection pressure for QoI-resistance. Treatments included the following fungicide groups: QoI, DMI, MBC, Chlorothalonil, QoI+DMI, SDHI+QoI, SDHI+QoI+DMI, and DMI+MBC ...


Improved Microplate Fluorometric Soil Enzyme Assay For Β-Glucosidase Detection, Emily C. Hoehn 2016 University of Nebraska-Lincoln

Improved Microplate Fluorometric Soil Enzyme Assay For Β-Glucosidase Detection, Emily C. Hoehn

Dissertations & Theses in Natural Resources

Soil microbes produce extracellular enzymes responsible for degrading complex organic compounds to release energy and nutrients. Measurement of soil enzymes can be considered an indicator of soil health and microbial community composition because of its sensitivity to agricultural and management practices. Fluorescence enzyme assays tend to be more sensitive than spectrophotometric (ie. colorimetric) assays and a 96-well plate has the potential capacity for high-throughput use. Development of a newly modified enzyme assay using fluorometric (4-methylumbelliferone), automated pipetting system and sonication, as well as a reduction in replicates allows for a higher sample throughput rate suitable for service laboratory use. The ...


A User Evaluation Of A Decision-Support System: The Community Assessment Model For Odor Dispersion (Cam), John C. Tyndall, Jay D. Harmon, Steven J. Hoff, Nancy Grudens-Schuck 2016 Iowa State University

A User Evaluation Of A Decision-Support System: The Community Assessment Model For Odor Dispersion (Cam), John C. Tyndall, Jay D. Harmon, Steven J. Hoff, Nancy Grudens-Schuck

Steven J. Hoff

This article introduces to the agricultural Extension community a decision-support system—the Community Assessment Model for Odor Dispersion (CAM)—that is helping Iowa swine producers minimize potential odor conflict. Additionally, we share our rationale and approach to evaluating both CAM and its outreach approach. CAM accounts for local conditions and helps producers assess odor risk from new facilities. Based on a user survey, 75% of producers rated CAM as "useful" to "very useful" in decision-making. Results suggest that CAM has passed the primary test of applied science as measured by usefulness to producers in making better decisions.


Constitution And Bylaws Of The Nebraska Chapter Of Gamma Sigma Delta, The Honor Society Of Agriculture (2016), Nebraska Chapter of the Honor Society of Agriculture, Gamma Sigma Delta 2016 University of Nebraska - Lincoln

Constitution And Bylaws Of The Nebraska Chapter Of Gamma Sigma Delta, The Honor Society Of Agriculture (2016), Nebraska Chapter Of The Honor Society Of Agriculture, Gamma Sigma Delta

Gamma Sigma Delta, Nebraska Chapter, By-Laws & Documents

As Amended: April 8, 2016


Gamma Sigma Delta, Nebraska Chapter Newsletter, Issue #52 Spring 2016, 2016 University of Nebraska - Lincoln

Gamma Sigma Delta, Nebraska Chapter Newsletter, Issue #52 Spring 2016

Gamma Sigma Delta, Nebraska Chapter, Newsletters

President’s Message — Dana W. R. Boden, President, Nebraska Chapter

GAMMA SIGMA DELTA NEW MEMBERS

2015 Gamma Sigma Delta Awards
Award of Merit for Service, Recipient: Steven Waller
Award of Merit for Service, Recipient: Paul Hay
Excellence in Research Award, Recipient: Andrea Cupp
Excellence in Teaching Award, Recipient: Merlyn Nielsen
Excellence in Extension Award, Recipient: Cheryl Burkhart-Kriesel
Lauren Skrabal –Outstanding Undergraduate
Kevin Sargent –Outstanding Graduate Student
Hillary Fischer -Arthur von Bergen Memorial Award
Elizabeth Carreiro –Outstanding Undergraduate Finalist

In Memoriam:
Charles Robert Fenster, 96, of Gering
Walter Thaine Bagley, 88, of Lincoln

Gamma Sigma Delta Committees 2016


Song Of The Dzopa: A Case Study Of Traditional Farming, Food, And, Isabella Pezzulo 2016 SIT Graduate Institute/SIT Study Abroad

Song Of The Dzopa: A Case Study Of Traditional Farming, Food, And, Isabella Pezzulo

Independent Study Project (ISP) Collection

In a plane high above the snow-capped jagged peaks and cracked earth of Ladakh, I stared down below with awe, wondering how people ever coaxed life from the soil in this mountain-desert landscape. The intention of this study is to see how traditional subsistence farming actually takes place and the social settings formed by these practices. Living in the village of Tar for a little over twenty days allowed me to observe the age-old practices in which nourishment is produced and community formed through working the land. Working with my hands and resting with cups of butter tea alongside villagers ...


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