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Articles 1 - 14 of 14
Full-Text Articles in Social and Behavioral Sciences
Farmers’ Adoption And Perceived Benefits Of Diversified Crop Rotations In The Margins Of U.S. Corn Belt, Tong Wang, Jin Hailong, Yubing Fan, Oladipo Obembe, Dapeng Li
Farmers’ Adoption And Perceived Benefits Of Diversified Crop Rotations In The Margins Of U.S. Corn Belt, Tong Wang, Jin Hailong, Yubing Fan, Oladipo Obembe, Dapeng Li
Economics Faculty Publications
Monoculture and simplified two-crop rotation systems compromise the ecosystem services essential to crop production, diminish agricultural productivity, and cause detrimental effects on the environment. In contrast to the simplified two-crop rotation, diversified crop rotation (DCR) refers to rotation systems that contain three or more crops. Despite multiple benefits generated by DCR, its usage has dwindled over the past several decades. This paper examined determinants of farmers' adoption decisions and perceived benefits of DCR in the west margins of the U.S. Corn Belt where crop diversity has declined. We analyzed 708 farmer responses from a farmer survey conducted in the eastern …
Yield And Economic Performance Of Crop Rotation Systems In South Dakota, Hanxiao Feng, Tong Wang, Shannon L. Osborne, Sandeep Kumar
Yield And Economic Performance Of Crop Rotation Systems In South Dakota, Hanxiao Feng, Tong Wang, Shannon L. Osborne, Sandeep Kumar
Economics Faculty Publications
Crop yield and economic profitability, both highly dependent on local crop management, soil characteristics, and weather conditions, are among the most influential factors to consider when considering a cropping system. The objective of this study was to compare the economic returns of three different 4-yr diverse crop rotations with that of a 2-yr traditional crop rotation in eastern South Dakota. The rotations included were (a) corn (Zea mays L.)–soybean [Glycine max (L.) Merr.]–spring wheat (Triticum aestivum L.)–pea (Pisum sativum L.) (CSSwP), (b) corn–pea–winter wheat–soybean (CPWwS), (c) corn–oat (Avena sativa L.)–winter wheat–soybean (COWwS), and (d) corn–soybean …
Crop Yield And Economics Of Cropping Systems Involving Different Rotations, Tillage, And Cover Crops, J. Singh, T. Wang, S. Kumar, Pete Sexton, J. Davis, A. Bly
Crop Yield And Economics Of Cropping Systems Involving Different Rotations, Tillage, And Cover Crops, J. Singh, T. Wang, S. Kumar, Pete Sexton, J. Davis, A. Bly
Economics Faculty Publications
Diversified cropping systems integrated with winter cover crops (CCs) and no-till (NT) systems can provide substantial soil conservation benefits in the midwestern Corn Belt of the United States, but there is uncertainty on how these practices affect producer profits. This study compared crop yield and economic performance from cropping systems that featured three crop rotations: corn (Zea mays L.)–soybean (Glycine max [L.] Merr.; two-year), corn–soybean–oat (Avena sativa L.; three-year), and corn–soybean–oat–winter wheat (Triticum aestivum L.; four-year); two tillage systems: NT and conventional-till (CT); and two cover cropping managements: CC and no-cover crop. Tillage and rotation treatments …
Understanding Producers’ Perspectives On Rotational Grazing Benefits Across Us Great Plains, Tong Wang, Hailong Jin, Urs Kreuter, Richard Teague
Understanding Producers’ Perspectives On Rotational Grazing Benefits Across Us Great Plains, Tong Wang, Hailong Jin, Urs Kreuter, Richard Teague
Economics Faculty Publications
Experimental findings on rotational grazing (RG) trials have generally differed from producer observations of RG outcomes on commercial scale ranches. Factors such as small plot size, short duration trials and relatively rigid grazing management that lacks responsiveness to the dynamic and complex social-ecological systems in grazing trials could all contribute to this disparity in outcomes. These differences call for a better understanding of producer perceptions of RG benefits. To fill this knowledge gap, we surveyed 4500 producers from the Northern and Southern Great Plains of the USA. Among the 875 respondents, 40.5% reported that they used continuous grazing (CG), 52.7% …
Expanding Grass-Based Agriculture On Marginal Land In The U.S. Great Plains: The Role Of Management Intensive Grazing, Tong Wang, Hailong Jin, Urs Kreuter, Richard Teague
Expanding Grass-Based Agriculture On Marginal Land In The U.S. Great Plains: The Role Of Management Intensive Grazing, Tong Wang, Hailong Jin, Urs Kreuter, Richard Teague
Economics Faculty Publications
No abstract provided.
Cover-Crop Usage In South Dakota: Farmer Perceived Profitability And Future Adoption Decisions, Tong Wang, Zheng Xu, Deepthi Kolady, Jessica D. Ulrich-Schad, David Clay
Cover-Crop Usage In South Dakota: Farmer Perceived Profitability And Future Adoption Decisions, Tong Wang, Zheng Xu, Deepthi Kolady, Jessica D. Ulrich-Schad, David Clay
Economics Faculty Publications
Using bivariate ordered logit models, we investigate factors that determine farmers’ perceptions of cover-crop profitability and likelihood of future usage in the climate transition zone of the Northern Great Plains. Our results indicate that approximately 40% of long-term (10+ years) users perceived a profit increase of more than 5%. Additionally, future adoption decisions are positively affected by environment-oriented attitudes and negatively affected by prioritizing short-term profitability. More efforts can be directed toward educational programs that enhance understanding of the short- versus long-term economic benefits of cover crops.
The Global Agriculture And Food Security Program: An Evaluation Of The Public Private Partnership In Malawi, Madhavi Venkatesan
The Global Agriculture And Food Security Program: An Evaluation Of The Public Private Partnership In Malawi, Madhavi Venkatesan
Economics Faculty Publications
Chronic food security issues in Africa have recently spurred an increase in public–private partnerships (PPPs), as governments across the continent look to stimulate agricultural productivity. Through multiple international channels, PPPs are implementing various programs within the agricultural sector as a means to promote both nutrition and food security. However, there are some constraints that may impede the success of PPP in the near-term such as inadequate legal and regulatory framework for PPPs; lack of technical skills to manage PPP programs and projects; unfavorable investor perception of country risk, small market size, limited infrastructure and limited financial markets. Additionally, the success …
Empirical Methods-A Review: With An Introduction To Data Mining And Machine Learning, Matt Bogard
Empirical Methods-A Review: With An Introduction To Data Mining And Machine Learning, Matt Bogard
Economics Faculty Publications
This presentation was part of a staff workshop focused on empirical methods and applied research. This includes a basic overview of regression with matrix algebra, maximum likelihood, inference, and model assumptions. Distinctions are made between paradigms related to classical statistical methods and algorithmic approaches. The presentation concludes with a brief discussion of generalization error, data partitioning, decision trees, and neural networks.
Monopoly, Regulation, And Innovation, Matt Bogard
Monopoly, Regulation, And Innovation, Matt Bogard
Economics Faculty Publications
Recently the Justice department has started investigations into alleged anti-trust violations by Monsanto. This has helped fuel a lot of already hyped discontent with one of the world’s leaders in innovative solutions for sustainable agriculture. This article discusses how the regulatory environment could possibly have contributed to more concentration and power in the biotech industry. Increasing regulation would likely have the opposite effect of creating a level playing field in the agriculture industry. From AgWeb, March 27,2010 http://www.agweb.com/blog/Economic_Sense_190/Monopoly_Regulation__and_Innovation_10771/
Mathematical Themes In Economics, Machine Learning, And Bioinformatics, Matt Bogard
Mathematical Themes In Economics, Machine Learning, And Bioinformatics, Matt Bogard
Economics Faculty Publications
Graduate students in economics are often introduced to some very useful mathematical tools that many outside the discipline may not associate with training in economics. This essay looks at some of these tools and concepts, including constrained optimization, separating hyperplanes, supporting hyperplanes, and ‘duality.’ Applications of these tools are explored including topics from machine learning and bioinformatics.
The Impact Of Military Forts On Agricultural Investments On The Great Plains In 1880, Christopher Decker, David T. Flynn
The Impact Of Military Forts On Agricultural Investments On The Great Plains In 1880, Christopher Decker, David T. Flynn
Economics Faculty Publications
We empirically investigate the relationship between agricultural development and proximity to military forts in Kansas, Nebraska, and Colorado in 1880. Agricultural investments are substantially higher in counties where a military fort is present, suggesting that military forts stimulated agricultural development on the Great Plains. However, the reverse is not true; there is no statistical support for the notion that forts necessarily located in counties where substantial development was already occurring. Moreover, we found that while the presence of a military fort has the effect of increasing agricultural development, there is no evidence that such a presence sustained agricultural development.
Continued Growth In Nebraska, Saeed Ahmad, John Austin, Tom Doering, Ernie Goss, Bruce Johnson, Donis Petersan, Franz Schwarz, Eric Thomson, Keith K. Turner
Continued Growth In Nebraska, Saeed Ahmad, John Austin, Tom Doering, Ernie Goss, Bruce Johnson, Donis Petersan, Franz Schwarz, Eric Thomson, Keith K. Turner
Economics Faculty Publications
National economic conditions will continue to favor growth over the next three years. Increased business investment will combine with rising industrial production, expanding exports, and moderate increases in consumer spending to grow the economy. The rate of inflation is expected to increase as well. The rate of real (inflation-adjusted) growth will moderate compared to strong economic growth during 2004. Real gross domestic product will grow 3 percent to 3.5 percent over the next three years. High oil prices will remain a drain on the economy, siphoning spending from domestically produced goods and services. Fuel prices are expected to remain at …
Sustained Growth In Nebraska, Saeed Ahmad, John Austin, Tom Doering, Ernie Goss, Bruce Johnson, Mike Lundeen, Donis Petersan, Franz Schwarz, Eric Thompson, Keith K. Turner
Sustained Growth In Nebraska, Saeed Ahmad, John Austin, Tom Doering, Ernie Goss, Bruce Johnson, Mike Lundeen, Donis Petersan, Franz Schwarz, Eric Thompson, Keith K. Turner
Economics Faculty Publications
National Macroeconomic conditions are favorable for future expansion of income, employment, and revenue in Nebraska. In particular, the U.S. economy is now in the heart of an expansion expected to persist over the three year forecast period. The principal engine of growth will be a sustained expansion in private sector investment and consumption demand. However, the rate of growth in the national economy likely will be moderate rather than rapid. At least three factors will act to moderate growth. The first is higher energy prices. Rapid growth in global demand is expected to keep prices for oil and natural gas …
The Efficiency Of Producing Alcohol For Energy In Brazil: Comment, Jonathan B. Wight
The Efficiency Of Producing Alcohol For Energy In Brazil: Comment, Jonathan B. Wight
Economics Faculty Publications
In a 1982 issue of this journal, Michael Barzelay and Scott R. Pearson examined the social costs and benefits of producing ethanol motor fuel in Brazil. They conclude that ethanol fuel was economically infeasible in 1981 and will remain so unless petroleum prices rise dramatically in the future. We seek first to call attention to some problems in their data and second to suggest that their analysis include broader considerations. Quite different conclusions could result.