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Full-Text Articles in Life Sciences

Insurance Coverage For Drought-Damaged Crops, William M. Edwards Jul 2016

Insurance Coverage For Drought-Damaged Crops, William M. Edwards

William Edwards

Nearly 90 percent of the corn and soybean acres in Iowa are covered by multiple peril crop insurance. Drought damage is an insurable loss under these policies. Producers should consult with their crop insurance agents before harvesting or destroying any drought-damaged crops, however.


Flood Damaged Crops, Crop Insurance Payments And Lease Contracts, William M. Edwards Jul 2016

Flood Damaged Crops, Crop Insurance Payments And Lease Contracts, William M. Edwards

William Edwards

Some Iowa corn and soybean producers are facing substantial if not complete crop losses due to flooding. In particular, many acres of crops in the Missouri River Valley have been under water for a month or more this year. Fortunately, nearly 90 percent of Iowa’s corn and soybean acres are protected by multiple peril crop insurance.


Farmland Rental Rates Show Continued Strength In 2012, William M. Edwards, Ann M. Johanns Jul 2016

Farmland Rental Rates Show Continued Strength In 2012, William M. Edwards, Ann M. Johanns

William Edwards

Anyone who is involved with the rental market for Iowa farmland knows that rental rates have been pushed significantly higher by the favorable corn and soybean prices that farmers have enjoyed since 2010. This trend continued in 2012.


Delayed Planting, Prevented Planting And Replanting Crop Insurance Coverage, Steven D. Johnson, William M. Edwards Jul 2016

Delayed Planting, Prevented Planting And Replanting Crop Insurance Coverage, Steven D. Johnson, William M. Edwards

William Edwards

The frequent rains that have soaked Iowa this year have left many corn and soybean fields unplanted or with flooded areas. Many producers are wondering what options they have under their multiple peril crop insurance (MPCI) policies. In Iowa, the crop insurance “late planting period” for corn begins on June 1. Corn can still be planted after this date, but the insurance guarantee on those acres is reduced by 1 percent per day until the acres are planted. Corn acres planted after June 25 will receive insurance coverage equal to 60 percent of their original guarantee. Producers should keep accurate ...


Early Planted Acres May Lose Replant Insurance, William M. Edwards Jul 2016

Early Planted Acres May Lose Replant Insurance, William M. Edwards

William Edwards

Unusually warm and dry weather has allowed crop producers to start spring field work earlier than can be remembered by most people. Getting an early start on tillage and planting reduces the risk of getting behind schedule later if an extended period of rainy weather occurs, but it also has its risks. The Risk Management Agency (USDA) has some specific rules about early planted crops with regard to crop insurance coverage. For each insurable crop RMA has set an “early planting date.” The earliest planting dates allowed for counties in the state of Iowa are April 11 for corn and ...


Compensation Of Farm Employees, William M. Edwards Jul 2016

Compensation Of Farm Employees, William M. Edwards

William Edwards

Iowa farm operators were surveyed to learn what type and level of compensation they paid to full-time employees in 1997. The average total compensation paid was $26, 914, of which 79 percent consisted of cash wages.Benefits accounted for 18 percent of the compensation, and bonuses and wages in kind amounted to 3 percent.Housing and insurance plans were the most significant benefits provided


Combine Harvester Econometric Model With Forward Speed Optimization, Nathan E. Isaac, Graeme R. Quick, Stuart J. Birrell, William M. Edwards, Bruce A. Coers Jul 2016

Combine Harvester Econometric Model With Forward Speed Optimization, Nathan E. Isaac, Graeme R. Quick, Stuart J. Birrell, William M. Edwards, Bruce A. Coers

William Edwards

A combine harvester econometric simulation model was developed with the goal of matching the combine forward speed to the maximum harvested net income per acre. The model considers the machinery management costs of owning a combine and platform header for harvesting wheat. A statistical Design of Experiment (DOE) was used to evaluate the model using tri-level variables; the medium values constituted the model base case. Of the 27 input variables, the optimum speed was significantly influenced by the crop area, G/MOG ratio, grain unit price, field yield, field efficiency, grain moisture content, probability of a working day in the ...


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

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.


Factors Affecting Timing And Intensity Of Calving Season Of Beef Cow-Calf Producers In The Midwest, Lee L. Schulz, Claire E. Andresen, Patrick J. Gunn May 2016

Factors Affecting Timing And Intensity Of Calving Season Of Beef Cow-Calf Producers In The Midwest, Lee L. Schulz, Claire E. Andresen, Patrick J. Gunn

Lee Schulz

Despite demonstrated market incentives to adopt controlled calving seasons, many producers still have herds that calve somewhat broadly throughout the year. Primarydata, collected through a coordinated survey effort withUSDA’s National Agricultural Statistics Service, were usedto quantify factors that affect producers’ decisions regardingtiming and intensity of calving season. Ninety-seven, 50, 33,and 26% of farms calve in the spring (Mar, Apr, May),summer (Jun, Jul, Aug), fall (Sep, Oct, Nov), and winter(Dec, Jan, Feb), respectively. Twenty-two percent observeda calving season exclusively in the spring. Sixty-six percentof respondents indicated calving season was dictated byweather, 34% because of labor availability, and ...


Beef Species Symposium: Economic Considerations Related To U.S. Beef Herd Expansion, Glynn T. Tonsor, Lee L. Schulz May 2016

Beef Species Symposium: Economic Considerations Related To U.S. Beef Herd Expansion, Glynn T. Tonsor, Lee L. Schulz

Lee Schulz

Significant attention perpetually surrounds possible changes in breeding herd inventories in the U.S. beef cattle industry. This article outlines economic considerations of U.S. herd expansion. Factors restricting expansion include land availability, increasing production efficiency, operator demographics, capital requirements, and commodity price volatility. Several offsetting factors support herd expansion including unprecedented cow–calf returns, ongoing global beef demand growth, and timing within the current cattle cycle. In addition to these industry-wide factors, several important variations in individual ranch considerations are outlined. The authors’ expectations on future herd dynamics are provided, highlighting broader implications for individual operations, industry leaders, and ...


Factors Affecting Timing And Intensity Of Calving Season Of Beef Cow-Calf Producers In The Midwest, Lee L. Schulz, Claire E. Andresen, Patrick J. Gunn Jan 2016

Factors Affecting Timing And Intensity Of Calving Season Of Beef Cow-Calf Producers In The Midwest, Lee L. Schulz, Claire E. Andresen, Patrick J. Gunn

Animal Industry Report

Despite demonstrated market incentives to adopt controlled calving seasons, many producers still have herds that calve somewhat broadly throughout the year. Primarydata, collected through a coordinated survey effort withUSDA’s National Agricultural Statistics Service, were usedto quantify factors that affect producers’ decisions regardingtiming and intensity of calving season. Ninety-seven, 50, 33,and 26% of farms calve in the spring (Mar, Apr, May),summer (Jun, Jul, Aug), fall (Sep, Oct, Nov), and winter(Dec, Jan, Feb), respectively. Twenty-two percent observeda calving season exclusively in the spring. Sixty-six percentof respondents indicated calving season was dictated byweather, 34% because of labor availability, and ...


Ratios And Benchmarks As Tools For Local Food Hub Decision-Making: A Comparative Case Study, Savanna May Lyons Jan 2016

Ratios And Benchmarks As Tools For Local Food Hub Decision-Making: A Comparative Case Study, Savanna May Lyons

Graduate Theses and Dissertations

Food hubs, or local food aggregation and distribution businesses, are triple-bottom-line firms that play an increasingly important role in connecting small and mid-sized farmers to wholesale and retail markets. This paper explores how food hubs can use their financial data to identify and address strengths and challenges in their operations. We propose a “dashboard” of key metrics and benchmarks for food hub managers, and apply it a comparative case study of four food hubs over three years of operations. We compare and contrast the liquidity, cash flow, efficiency, solvency and repayment capacity of the four cases, and analyze cross-cutting themes ...


New Models To Estimate Costs Of Us Farm Programs, Xiaohong Zhu Jan 2016

New Models To Estimate Costs Of Us Farm Programs, Xiaohong Zhu

Graduate Theses and Dissertations

In this study, I extended the stochastic model built by Babcock and Paulson (2012) to conduct a one-year cost projection for crop insurance in order to investigate its feasibility of being solely provided by private firms. Based on the 52 years’ yield data from 1961 to 2012, the risk consequences from insuring crop yield and revenue against losses are estimated to be far beyond what private insurers could bear on their own. However, reinsurance from the government provides an attractive incentive to insurance firms. Among the six insurance policies researched in this study, the minimum expected net underwriting gains to ...


Beef Species Symposium: Economic Considerations Related To U.S. Beef Herd Expansion, Glynn T. Tonsor, Lee L. Schulz Sep 2015

Beef Species Symposium: Economic Considerations Related To U.S. Beef Herd Expansion, Glynn T. Tonsor, Lee L. Schulz

Economics Publications

Significant attention perpetually surrounds possible changes in breeding herd inventories in the U.S. beef cattle industry. This article outlines economic considerations of U.S. herd expansion. Factors restricting expansion include land availability, increasing production efficiency, operator demographics, capital requirements, and commodity price volatility. Several offsetting factors support herd expansion including unprecedented cow–calf returns, ongoing global beef demand growth, and timing within the current cattle cycle. In addition to these industry-wide factors, several important variations in individual ranch considerations are outlined. The authors’ expectations on future herd dynamics are provided, highlighting broader implications for individual operations, industry leaders, and ...


An Exploratory Statistical Analysis Of The External And Internal Effects Of Art Museums In The United States, John Eder Aug 2015

An Exploratory Statistical Analysis Of The External And Internal Effects Of Art Museums In The United States, John Eder

Journal of Environmental and Resource Economics at Colby

An Exploratory Statistical Analysis of the External and Internal Effects of Art Museums in the United States


Ag Decision Maker: Combine Ownership Or Custom Hire, William M. Edwards, H. Mark Hanna Apr 2015

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

H. Mark Hanna

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


List Of Economics Department Pamphlets, Penny Stover Jan 2015

List Of Economics Department Pamphlets, Penny Stover

Economics Pamphlet Series

No abstract provided.


Three Essays On Crop Yield, Crop Insurance And Climate Change, Lisha Li Jan 2015

Three Essays On Crop Yield, Crop Insurance And Climate Change, Lisha Li

Graduate Theses and Dissertations

The main subject of this dissertation includes the study of the impact of weather on crop yields and developing crop revenue insurance product. The dissertation limits its analysis to the state of Iowa because it's a critical corn production area in the United States. Chapter 2 introduced a dynamic linear model to measure weather-adjusted trends in Iowa corn yields. The weather factors consist of the amount of rainfall, temperature and a measurement of soil moisture. Results show a significant improved yield growth in the 1990s, controlling for the impact of weather. Results also indicate that the critical temperature varies ...


Three Essays On Modeling Biofuel Feedstock Supply, Wei Zhou Jan 2015

Three Essays On Modeling Biofuel Feedstock Supply, Wei Zhou

Graduate Theses and Dissertations

The general theme of this dissertation is modeling biofuel feedstock supply. All three essays focuses on different topics relating to the theme. The first essay considers supply of corn stover for a commercial production of a cellulosic ethanol plant. The economic trade-offs in determining the plant size under uncertain future corn stover yields and cellulosic ethanol prices are analyzed. We also estimate the impacts on optimal plant sizes under two payment schemes for corn stover procurement: plant pays for transportation cost and farmers pay for the transportation cost. My second essay analyzes the impact of ethanol mandates on corn prices ...


Three Studies On Applying Positive Mathematical Programming And Bayesian Analysis To Model Us Crop Supply, Michael Hudak Jan 2015

Three Studies On Applying Positive Mathematical Programming And Bayesian Analysis To Model Us Crop Supply, Michael Hudak

Graduate Theses and Dissertations

The purpose of this dissertation is to find a practical way of obtaining a reasonable crop supply model for the US using a limited dataset. This model can then be used for forecasting and impact modeling. The method that is central to this model is Positive Mathematical Programming (PMP) that allows for the calibration of a nonlinear programming model to mimic the observations. This method is improved by implementing Bayesian Analysis to allow for the model to consider a distribution for the supply elasticity.

Using this method a national model was formed using only five years of data. While there ...


Nông Thôn Mới And Rural Development In The Mekong Delta: A Comparative Study Of Bàu Môn And Hòa Phụng C Hamlets, Alex Lintz Dec 2014

Nông Thôn Mới And Rural Development In The Mekong Delta: A Comparative Study Of Bàu Môn And Hòa Phụng C Hamlets, Alex Lintz

Independent Study Project (ISP) Collection

Vietnam’s Nông Thôn Mới or New Rural Development program is a relatively new target program introduced in 2010. As of yet there has been little research done on its effects on the economies in rural areas. This paper attempts to analyze the economic situation in the Bàu Môn and Hòa Phụng C hamlets with a particular emphasis placed on income and factors that affect income in terms of Vietnam’s Nông Thôn Mới or New Rural Development program. In order to assess the economic situation in the hamlets, a survey was administered to 25 participants in each hamlet and ...


Potential For Machinery: A Case Study Of Fruit And Vegetable Growers In Iowa, Nicholas Jon Pates, Georgeanne M. Artz Jan 2014

Potential For Machinery: A Case Study Of Fruit And Vegetable Growers In Iowa, Nicholas Jon Pates, Georgeanne M. Artz

Leopold Center Publications and Papers

This 28-page publication describes field machinery used on six Iowa fruit and vegetable operations. The case studies looked at how size, diversification, marketing strategies and production methods impacted decisions regarding machinery.


Delayed Planting, Prevented Planting And Replanting Crop Insurance Coverage, Steven D. Johnson, William M. Edwards May 2013

Delayed Planting, Prevented Planting And Replanting Crop Insurance Coverage, Steven D. Johnson, William M. Edwards

Integrated Crop Management News

The frequent rains that have soaked Iowa this year have left many corn and soybean fields unplanted or with flooded areas. Many producers are wondering what options they have under their multiple peril crop insurance (MPCI) policies.

In Iowa, the crop insurance “late planting period” for corn begins on June 1. Corn can still be planted after this date, but the insurance guarantee on those acres is reduced by 1 percent per day until the acres are planted. Corn acres planted after June 25 will receive insurance coverage equal to 60 percent of their original guarantee. Producers should keep accurate ...


Department Of Economics Publication List 2012, Penny Stover Apr 2013

Department Of Economics Publication List 2012, Penny Stover

Economics Pamphlet Series

This compilation lists works authored by Department of Economics faculty members and other staff working on projects funded through the Department of Economics. Publications resulting from their research and academic activities are indexed by author at the end of this pamphlet for easy access by the public. The articles were published between January 1, 2012 and December 31, 2012, except for those works printed in italics which have been accepted for publication but not actually printed as of December 31, 2012.


Aflatoxin: Crop Insurance, Charles R. Hurburgh Jr., Chad E. Hart Sep 2012

Aflatoxin: Crop Insurance, Charles R. Hurburgh Jr., Chad E. Hart

Integrated Crop Management News

Aflatoxin is covered under multi-peril crop insurance. The settlement is done as a deducted percentage of actual yield depending on the aflatoxin level. Producers will receive the grain after settlement.


Insurance Coverage For Drought-Damaged Crops, William M. Edwards Jul 2012

Insurance Coverage For Drought-Damaged Crops, William M. Edwards

Integrated Crop Management News

Nearly 90 percent of the corn and soybean acres in Iowa are covered by multiple peril crop insurance. Drought damage is an insurable loss under these policies. Producers should consult with their crop insurance agents before harvesting or destroying any drought-damaged crops, however.


Farmland Rental Rates Show Continued Strength In 2012, William M. Edwards, Ann M. Johanns May 2012

Farmland Rental Rates Show Continued Strength In 2012, William M. Edwards, Ann M. Johanns

Integrated Crop Management News

Anyone who is involved with the rental market for Iowa farmland knows that rental rates have been pushed significantly higher by the favorable corn and soybean prices that farmers have enjoyed since 2010. This trend continued in 2012.


Early Planted Acres May Lose Replant Insurance, William M. Edwards Apr 2012

Early Planted Acres May Lose Replant Insurance, William M. Edwards

Integrated Crop Management News

Unusually warm and dry weather has allowed crop producers to start spring field work earlier than can be remembered by most people. Getting an early start on tillage and planting reduces the risk of getting behind schedule later if an extended period of rainy weather occurs, but it also has its risks. The Risk Management Agency (USDA) has some specific rules about early planted crops with regard to crop insurance coverage. For each insurable crop RMA has set an “early planting date.” The earliest planting dates allowed for counties in the state of Iowa are April 11 for corn and ...


Energy Use In Pig Production: An Examination Of Current Iowa Systems, Peter J. Lammers, M. Douglas Kenealy, James B. Kliebenstein, Jay D. Harmon, Matthew J. Helmers, Mark S. Honeyman Mar 2012

Energy Use In Pig Production: An Examination Of Current Iowa Systems, Peter J. Lammers, M. Douglas Kenealy, James B. Kliebenstein, Jay D. Harmon, Matthew J. Helmers, Mark S. Honeyman

Agricultural and Biosystems Engineering Publications

This paper compares energy use for different pig production systems in Iowa, a leader in US swine production. Pig production systems include not only the growth and performance of the pigs, but also the supporting infrastructure of pig production. This supporting infrastructure includes swine housing, facility management, feedstuff provision, swine diets, and manure management. Six different facility type × diet formulation × cropping sequence scenarios were modeled and compared. The baseline system examined produces 15,600 pigs annually using confinement facilities and a corn-soybean cropping sequence. Diet formulations for the baseline system were corn-soybean meal diets that included the synthetic AA L-lysine ...


Important Crop Insurance Dates, William M. Edwards Feb 2012

Important Crop Insurance Dates, William M. Edwards

Integrated Crop Management News

Even the best crop insurance plan is of little use if the right information is not collected and submitted on time. Likewise, if certain actions are not completed by the necessary date, producers may not receive full benefit from the risk protection that they have selected.