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Mapping Agricultural Decision Making Across The U.S. Corn Belt, Tonya Haigh, Eugene Takle, Jeffrey Andresen, Melissa Widhalm, J. Stuart Carlton, Jim Angel 2017 University of Nebraska, Lincoln

Mapping Agricultural Decision Making Across The U.S. Corn Belt, Tonya Haigh, Eugene Takle, Jeffrey Andresen, Melissa Widhalm, J. Stuart Carlton, Jim Angel

Eugene Takle

Decision calendars help identify opportunities for inserting climate information into a decision process as well as points where other considerations might overrule use of the climate information. Developers of decision calendars are challenged, though, by a potentially infinite number of modifications required to address spatial variability in agricultural decision making. Variability in climate, soils, and agricultural production systems across a region may result in deviations in decision-making times.


The Cost Of Production Milk, H. B. Munger 2017 Iowa State College

The Cost Of Production Milk, H. B. Munger

Bulletin (Iowa Agricultural Experiment Station)

A study of milk production costs on 58 farms near Mason City, Cerro Gordo county, Iowa, covering the year November 1, 1916, to November 1, 1917, shows that the net cost of the 4,108,036 pounds of milk produced by the 900 cows on these farms was $3.15 per 100 pounds under the conditions for that year. All charges that could properly be made against the milk were included and all credits were also considered.

On some farms the cost of production was less, as low as $1.80 per 100 pounds, and on some it was much ...


A Standard Greenhouse Method For Assessing Soybean Cyst Nematode Resistance In Soybean: Sce08 (Standardized Cyst Evaluation 2008), T. L. Niblack, Gregory L. Tylka, Prakash Arelli, Jason Bond, Brian Diers, Pat Donald, Jamal Faghihi, V. R. Ferris, Karen Gallo, Robert D. Heinz, Horacio Lopez-Nicora, Ralph Von Qualen, Tom Welacky, John Wilcox 2017 University of Illinois at Urbana-Champaign

A Standard Greenhouse Method For Assessing Soybean Cyst Nematode Resistance In Soybean: Sce08 (Standardized Cyst Evaluation 2008), T. L. Niblack, Gregory L. Tylka, Prakash Arelli, Jason Bond, Brian Diers, Pat Donald, Jamal Faghihi, V. R. Ferris, Karen Gallo, Robert D. Heinz, Horacio Lopez-Nicora, Ralph Von Qualen, Tom Welacky, John Wilcox

Gregory Tylka

The soybean cyst nematode (SCN), Heterodera glycines Ichinohe, is distributed throughout the soybean [Glycine max (L.) Merr.] production areas of the United States and Canada (Fig. 1) (26). SCN remains the most economically important pathogen of soybean in North America; the most recent estimate of soybean yield reduction in North America due to SCN totaled 34,659,000 metric tons during 2006 (34).


The Effect Of The Dodd-Frank Act On Non-Metro Cooperative Lenders, Greg McKee 2017 University of Nebraska - Lincoln

The Effect Of The Dodd-Frank Act On Non-Metro Cooperative Lenders, Greg Mckee

Cornhusker Economics

Credit availability affects the equilibrium quantity of housing. Lenders incorporated as cooperatives, such as agricultural credit associations (ACA) and credit unions, are aware of their role in offering rural residential real estate loans, facilitating entry into this housing market. In some instances there are few alternatives to cooperative financial institutions for access to mortgages in rural areas. At year -end 2016, credit unions were the only type of financial institution in approximately 275 nonmetropolitan counties nationwide. In some instances other types of financial organizations simply do not offer home finance products in nonmetro locations. Compounding these features of non-metropolitan real ...


Economical Production Of Beef., C. F. Curtiss, John A. Craig 2017 Iowa State College

Economical Production Of Beef., C. F. Curtiss, John A. Craig

Bulletin (Iowa Agricultural Experiment Station)

In the investigations that have been made in the economical production of beef, the main factors receiving consideration have been the production and fattening of native steers and the fattening of those obtained from the range. The experiments connected with the making of beef from native steers included studies of the possibilities of making a combined profit from the steers and also from the cows that produced them, the use of skimmilk for economy in feeding and the employment of a wide and a narrow ration in feeding. These are reported on somewhat independently, though they have a bearing on ...


Trade Balances, Wesley Peterson, Marianna Khachaturyan 2017 University of Nebraska - Lincoln

Trade Balances, Wesley Peterson, Marianna Khachaturyan

Cornhusker Economics

The fact that the United States has a global trade deficit as well as bilateral trade deficits with particular countries, such as China or Germany, has recently received extensive commentary in the news (see Irwin 2016, Constable 2017, Goodman 2017). The balance of trade is the difference between the value of a country’s imports of goods and services and the value of its exports and can be either negative (deficit) or positive (surplus). Trade balances between two countries are actually of little economic interest as countries always have trade surpluses with some countries while having trade deficits with others ...


2016 Net Farm Income, Tina Barrett 2017 University of Nebraska - Lincoln

2016 Net Farm Income, Tina Barrett

Cornhusker Economics

The Nebraska Farm Business published results from their 2016 Farm Financial Averages program in May. The data included is from farms and ranches across Nebraska that participate in their financial analysis program. The data is a result of the averages from the individual farms which the producers can use as benchmarks, but also provide a source of actual farm level information to gauge the financial health of the producers in Nebraska.


The Impact Weather Has On Nyc Citi Bike Share Company Activity, Mark Martinez 2017 Colby College

The Impact Weather Has On Nyc Citi Bike Share Company Activity, Mark Martinez

Journal of Environmental and Resource Economics at Colby

This paper seeks to figure out the effect weather has on individuals’ behavior. A more focused approach to determining this effect is seeing how different weather conditions ranging from the temperature, the precipitation, the amount of inches of snowfall and the wind speed effect the ridership of Citi Bikes throughout all four seasons. The approach of this research paper is using data from the National Climatic Data Center that focuses in on the weather found in Manhattan, New York and correlates each of the weather conditions to the total number of trips per day that is provided by the Citi ...


The Effects From Public Transportation On Property Values: A Closer Look At Scituate, Hanover, And Norwell, Massachusetts, Alexandra Taylor Perticone, Christine S. Coveney 2017 Colby College

The Effects From Public Transportation On Property Values: A Closer Look At Scituate, Hanover, And Norwell, Massachusetts, Alexandra Taylor Perticone, Christine S. Coveney

Journal of Environmental and Resource Economics at Colby

Prior studies have expressed the value of location in real estate, but more recent studies have explored the influence that public transportation has had on housing prices. Access to public transportation is understood to increase the value of homes. Easier access to public transportation allows for shorter and more convenient commutes into or within cities. However, other studies have found that proximity to public transportation can also have adverse effects on property values. This paper investigates whether the implementation of the Greenbush Commuter line in Massachusetts in October 2007 increased the housing prices in Scituate, Ma--the furthest town from the ...


Invited Introduction To Jerec, Matthew Kahn 2017 University of Southern California and NBER

Invited Introduction To Jerec, Matthew Kahn

Journal of Environmental and Resource Economics at Colby

No abstract provided.


Welcome By The Editor, Nathan W. Chan 2017 Colby College

Welcome By The Editor, Nathan W. Chan

Journal of Environmental and Resource Economics at Colby

No abstract provided.


Estimation Of The Virtualwater Content Of Main Crops On The Korean Peninsula Using Multiple Regional Climate Models And Evapotranspiration Methods, Chul-Hee Lim, Seung Hee Kim, Yuyoung Choi, Menas Kafatos, Woo-Kyun Lee 2017 Chapman University

Estimation Of The Virtualwater Content Of Main Crops On The Korean Peninsula Using Multiple Regional Climate Models And Evapotranspiration Methods, Chul-Hee Lim, Seung Hee Kim, Yuyoung Choi, Menas Kafatos, Woo-Kyun Lee

Mathematics, Physics, and Computer Science Faculty Articles and Research

Sustainable agriculture in the era of climate change needs to find solutions for the retention and proper utilization of water. This study proposes an ensemble approach for identifying the virtual water content (VWC) of main crops on the Korean Peninsula in past and future climates. Ensemble results with low uncertainty were obtained using three regional climate models, five potential evapotranspiration methods, and the Environmental Policy Integrated Climate (EPIC) crop model. The productivity results of major crops (rice and maize) under climate change are likely to increase more than in the past based on the ensemble results. The ensemble VWC is ...


Factors Influencing Employment Choices Of Graduates From The Department Of Agricultural Economics, Larry Van Tassell 2017 University of Nebraska - Lincoln

Factors Influencing Employment Choices Of Graduates From The Department Of Agricultural Economics, Larry Van Tassell

Cornhusker Economics

During the Spring of 2012, we sent a survey to alumni of our department for the purpose of collecting information to assist students and aid in student recruitment. We surveyed 2,899 alumni and had 789 responses. For this article, I focused on the 406 respondents who have graduated since 1980. The average respondent抯 age was 40, with a range of 22 to 65. Twenty-six percent were female and 74 percent were male.


2015 Iowa Land Value Survey: Overview, Wendong Zhang, Karen Kovarik, Zac Beek 2017 Iowa State University

2015 Iowa Land Value Survey: Overview, Wendong Zhang, Karen Kovarik, Zac Beek

Wendong Zhang

This briefing paper includes background information on the Iowa land value survey, including historic information, an analysis of highest/lowest land values and changes from last year’s survey.


Crude Oil Prices And Us Crop Exports: Exploring The Secondary Links Between The Energy And Ag Markets, Chad Hart, Wendong Zhang 2017 Iowa State University

Crude Oil Prices And Us Crop Exports: Exploring The Secondary Links Between The Energy And Ag Markets, Chad Hart, Wendong Zhang

Wendong Zhang

As the biofuel industry has developed, there has been a lot of discussion about the linkages between the energy and agricultural markets. The growth of the ethanol and biodiesel sectors bolstered the connection among the oil, gas, and crop markets. As crop-based biofuels compete in the energy market, crop prices are directly impacted not only by the relative standing of biofuels in the fuel hierarchy, but also by general shifts in energy supplies and demands. However, there is another distinct way energy markets can impact crop markets—many US international trade partners are reliant on the energy sector as a ...


The Commonalities And Differences Between Chinese And Us Agriculture, Wendong Zhang 2017 Iowa State University

The Commonalities And Differences Between Chinese And Us Agriculture, Wendong Zhang

Wendong Zhang

With one in four rows of soybeans planted in Iowa exported to China, it is almost impossible to overstate the importance of the Chinese economy and its consumers have for US agricultural producers and the farm sector in general. However, there is a lack of understanding of China’s agricultural industry and, in particular, the life and work of a typical Chinese agricultural producer. Having been born and raised in a rural Chinese county, I want to share some of my observations regarding the commonalities and differences between Chinese and US agriculture.


Land Quality Perceptions In Expert Opinion Surveys: Evidence From Iowa, Wendong Zhang, Michael D. Duffy 2017 Iowa State University

Land Quality Perceptions In Expert Opinion Surveys: Evidence From Iowa, Wendong Zhang, Michael D. Duffy

Wendong Zhang

While many opinion-based surveys ask land values for different land quality classes, little is known how survey respondents perceive the land quality. Using the 2015 Iowa Land Value Survey, this article examines how respondents perceive land quality in their responses to land value questions. Our results show agricultural professionals seem to perceive land quality with respect to specific regions, and high, medium and low land quality should be interpreted locally within a crop reporting district. This case study suggests that it is difficult to generalize uniform yield or soil productivity index ranges for land quality questions in all opinion-based surveys.


Research Needs And Challenges In The Few System: Coupling Economic Models With Agronomic, Hydrologic, And Bioenergy Models For Sustainable Food, Energy, And Water Systems, Catherine L. Kling, Raymond W. Arritt, Gray Calhoun, David A. Keiser, John M. Antle, Jeffery G. Arnold, Miguel Carriquiry, Indrajeet Chaubey, Peter Christensen, Baskar Ganapathysubramanian, Philip Gassman, William Gutowski, Thomas W. Hertel, Gerritt Hoogenboom, Elena Irwin, Madhu Khanna, Pierre Mérel, Daniel J. Phaneuf, Andrew Plantinga, Stephen Polasky, Paul Preckel, Sergey Rabotyagov, Ivan Rudik, Silvia Secchi, Aaron Smith, Andrew VanLoocke, Calvin Wolter, Jinhua Zhao, Wendong Zhang 2017 Iowa State University

Research Needs And Challenges In The Few System: Coupling Economic Models With Agronomic, Hydrologic, And Bioenergy Models For Sustainable Food, Energy, And Water Systems, Catherine L. Kling, Raymond W. Arritt, Gray Calhoun, David A. Keiser, John M. Antle, Jeffery G. Arnold, Miguel Carriquiry, Indrajeet Chaubey, Peter Christensen, Baskar Ganapathysubramanian, Philip Gassman, William Gutowski, Thomas W. Hertel, Gerritt Hoogenboom, Elena Irwin, Madhu Khanna, Pierre Mérel, Daniel J. Phaneuf, Andrew Plantinga, Stephen Polasky, Paul Preckel, Sergey Rabotyagov, Ivan Rudik, Silvia Secchi, Aaron Smith, Andrew Vanloocke, Calvin Wolter, Jinhua Zhao, Wendong Zhang

Wendong Zhang

On October 12–13, a workshop funded by the National Science Foundation was held at Iowa State University in Ames, Iowa with a goal of identifying research needs related to coupled economic and biophysical models within the FEW system. Approximately 80 people attended the workshop with about half representing the social sciences (primarily economics) and the rest from the physical and natural sciences. The focus and attendees were chosen so that findings would be particularly relevant to SBE research needs while taking into account the critical connectivity needed between social sciences and other disciplines. We have identified several major gaps ...


Range And Forage Research Needs For Red Meat Production In The North Central Region, S. A. Ewing, Herman J. Gorz 2017 Iowa State University of Science & Technology

Range And Forage Research Needs For Red Meat Production In The North Central Region, S. A. Ewing, Herman J. Gorz

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The 12 contiguous states of the North Central Region constitute one of the most productive agricultural areas in the world. Before the region was settled, vegetation consisted primarily of forest in the east, grasses in the west, and an intermingling of grass and forest in the central portions. Although the region contains a high proportion of productive soils, there are great differences within the region in soils, as well as in climate, vegetation, and geology. The short-grass soils in the western areas are higher in pH, lighter in color, and thinner than the tail-grass soils in the central and west-central ...


Growing-Degree Units For Corn In The North Central Region, R. H. Shaw 2017 Iowa State University of Science & Technology

Growing-Degree Units For Corn In The North Central Region, R. H. Shaw

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Growing-degree units were calculated for the North Central Region by using the so-called National Weather Service Method. This adjusts for maximum temperatures above 86°F and for minimum temperatures below 50°F. Growing-degree units were calculated for five different periods: 14 days before the average planting date to the average fall safe-from-frost date, 7 days before the average planting date to the average fall safe-from-frost date, the average planting date to the average fall safe-from-frost date, 7 days after the average planting date to the average fall safe-from-frost date, and 14 days after the average planting date to the average ...


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