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Articles 1 - 15 of 15
Full-Text Articles in Life Sciences
Interrogating The Socio-Ethical Dilemmas Of Precision Agriculture Technologies, Ayorinde Ogunyiola
Interrogating The Socio-Ethical Dilemmas Of Precision Agriculture Technologies, Ayorinde Ogunyiola
Electronic Theses and Dissertations
Farming has moved into a digital age where data and information are available to farmers to make informed agronomic and financial on-farm decisions. The development of precision agriculture (PA), such as big data technologies and machine learning algorithms is transforming the agricultural food production system in diverse ways, economically, environmentally, and socially. Despite benefits afforded by PA to agricultural productivity and environmental sustainability, these technologies can raise unintended societal challenges that can also limit their adoption among farmers. PA is changing how farming is done, reconstructing farmers’ social identities, and influencing relationships between farmers, agronomists, and technology developers. This dissertation …
Genetically Modified Corn Diffusion And Biofuel Usage: Impacts On Corn Belt Cropping Systems Changes, Kenneth Annan
Genetically Modified Corn Diffusion And Biofuel Usage: Impacts On Corn Belt Cropping Systems Changes, Kenneth Annan
Electronic Theses and Dissertations
The adoption of genetically modified (GM) crops, the rise of ethanol production that produced an additional derived demand for corn, and the increasingly prominent position of corn and soybeans in crop rotations embody major changes in U.S. agriculture during the past decades. This study investigates the linkages among these developments in two ways. First, we look at how biotechnology and biofuels have influenced cropping system changes in the Corn Belt region of the United States, using state-level data from 2000 to 2019. Second, we investigate the determinants of corn acreage intensification levels and heterogeneity at the state level using data …
Exploring The Determinants Of Aspects Of Rotational Grazing In The U.S. Great Plains, Iftekhar Uddin Ahmed Chowdhury
Exploring The Determinants Of Aspects Of Rotational Grazing In The U.S. Great Plains, Iftekhar Uddin Ahmed Chowdhury
Electronic Theses and Dissertations
Pasture and rangeland make up about 45 percent of the agricultural land in the U.S. Great Plains and one of the most common form of mismanagement of this pasture is overgrazing. Which results in many detrimental effects on environment. Many practitioners endorsed Rotational grazing (RG) as an improved grazing management practice over season-long continuous grazing. The overall goal of the current study is to assess the certain aspects of using RG in the U.S. Great Plains. Using mail survey data of the of 874 beef cattle producers of North Dakota, South Dakota, and Texas, the study found that neighborhood practice, …
Factors Influencing Adoption And Adoption Intensity Of Precision Agriculture Technologies In South Dakota, Md Mahi Uddin
Factors Influencing Adoption And Adoption Intensity Of Precision Agriculture Technologies In South Dakota, Md Mahi Uddin
Electronic Theses and Dissertations
Precision agriculture can play an important role in preserving the environment and improving the economic conditions of agricultural producers. This thesis analyzes the determinants of adoption and adoption intensity of precision agriculture technologies in South Dakota. This analysis uses survey data collected from 199 farms distributed over 28 different counties in South Dakota, accounting for approximately 500,000 acres of tillable agricultural land, to (1) discover the factors impacting precision technology adoption; (2) compare and contrast several characteristics among adopters and non-adopters; and (3) develop probit, count, and negative binomial models to determine the significance of explanatory variables impacting precision technology …
Performance Of The Producer Accumulator In Corn And Soybean Commodity Markets, Chad Te Slaa
Performance Of The Producer Accumulator In Corn And Soybean Commodity Markets, Chad Te Slaa
Electronic Theses and Dissertations
This research quantifies risk reduction and performance of the producer accumulator contract in corn and soybean markets. To quantify performance, we use three alternative theoretical pricing models to estimate historical producer accumulator contract specifications in corn and soybean markets. We then compare the performance of the producer accumulator to eight alternative agricultural marketing strategy portfolios that are also used in new generation grain contracts. The performance measures we compare are: average bushel price that would be received by the producer, daily portfolio risk, and the Sharpe ratio. The period we examine performance was between 2008 and 2017. We investigate performance …
Heterogeneous Nitrogen Losses: Cost-Effectiveness Analysis Of Changes In Management Across South Dakota, Archibold Quaye
Heterogeneous Nitrogen Losses: Cost-Effectiveness Analysis Of Changes In Management Across South Dakota, Archibold Quaye
Electronic Theses and Dissertations
The loss of nitrogen fertilizer into the atmosphere and waterways is of increasing concern for citizens and policy makers. This is particularly relevant for hypoxia in rivers, lakes, and oceans, but also relevant for policy makers in reducing the increasing concentration of greenhouse gases (GHG) in the atmosphere. GHGs trap heat in the atmosphere and include: carbon dioxide, methane, nitrous oxide and fluorinated gases. Overall, the estimated contribution from the agricultural sector to GHG emissions was 9% in 2013 (EPA, 2013). Further, the addition of nitrogen to the soil through the use of synthetic fertilizers is a main contributor to …
Temporal And Spatial Influences On South Dakota Farm Economies Of Size, Henry Brown
Temporal And Spatial Influences On South Dakota Farm Economies Of Size, Henry Brown
Electronic Theses and Dissertations
Census of Agriculture data are evaluated to test for economies of size of South Dakota farms. Economies of size occur when per-unit costs decrease as the size of a firm increases. This research measures technical economies of size, which assume that all firms pay identical input prices and receive identical output prices. The dependent variable of the model is expenses per dollar of sales. This is a typical measure of efficiency in agricultural statistics. The data come from the four prior Census of Agriculture years, 1997, 2002, 2007, and 2012. A state-wide model and a county-wide model were developed to …
Relationship Of Grain Stocks And Farmer Marketings, Tyler Holmquist
Relationship Of Grain Stocks And Farmer Marketings, Tyler Holmquist
Electronic Theses and Dissertations
This research explores the relationship between quarterly grain stocks and monthly grain marketings. Reviewing when, how, and why stocks move from on-farm and off-farm inventories, an interpretation of quarterly commodity disappearance and crop marketings is formed. An explanatory model is first developed for farmer marketings, where price expectations are used to assess market signals to change ownership of crops. The model is applied to South Dakota corn, soybeans, and wheat from 1985 through 2015. The subsequent analysis contributes to a model that explains quarterly changes in stocks in terms of supply levels and the expected effect from marketings on disappearance. …
Investigating Grassland And Cropland Conversion Decisions In The Dakotas, 2015 Producers Survey And Analysis, Md Niaz Murshed Chowdhury
Investigating Grassland And Cropland Conversion Decisions In The Dakotas, 2015 Producers Survey And Analysis, Md Niaz Murshed Chowdhury
Electronic Theses and Dissertations
This study investigates grassland and cropland conversion decisions in the Dakotas. Data from a 2015 survey completed by 1,026 producers located in 57 counties of the Prairie Pothole Region (PPR) were used to evaluate land conversions. This thesis attempts to identify the land use conversion incidence and rate (grass to crop and crop to grass); the link between past and projected land use conversion decisions in the Dakotas, and determinants of land use conversion using different statistical tools, including logistic regression methods. A regional analysis of converted acres reveals that the grass to crop conversion rates (as percent of 2014 …
Energy In The Corn Belt: Is Maize Production Sustainable?, Matthew Bernau
Energy In The Corn Belt: Is Maize Production Sustainable?, Matthew Bernau
Electronic Theses and Dissertations
Technological and scientific innovation has transformed agricultural production. Corn production methods changed from a sustainable, nutrient recycling production system to one reliant on imported fossil energy inputs. Located in the Western Corn Belt, Union County, South Dakota was chosen as the study area. Changes in production methods are represented by four technological epochs: 1) The Draft Horse Epoch, 1890-1920; 2) The Tractor Epoch, 1920-1950; 3) The Fertilizer Epoch, 1950-1980; and 4) The Biotechnology and Precision Agriculture Epoch, 1980-2010. The energy budget method was used to measure the energy sustainability of corn production. The findings show that the volume of corn …
A Computerized Planning Model For Small Farms In Southeastern South Dakota, Rodney Gene De Smet
A Computerized Planning Model For Small Farms In Southeastern South Dakota, Rodney Gene De Smet
Electronic Theses and Dissertations
Structural changes in agriculture resulting in fewer and larger farms carries strong implications for smaller farms. Included in the small farm group are small, low-resource, and part-time farmers, some of which are unable to generate an adequate income due to limited resources. This research study has developed a managerial tool for assisting low-resource farmers in developing optimal farm plans. The planning model is an interaction of familiar components (budgets) with a complex mathematical model (linear progra111T1ing) to provide an efficient analytical tool for use by farmers to aid in their managerial process. This study has placed emphasis upon the development …
An Econometric Analysis Of The Cash Receipts From Crops In South Dakota, Dennis James Senger
An Econometric Analysis Of The Cash Receipts From Crops In South Dakota, Dennis James Senger
Electronic Theses and Dissertations
It is the intent of this research effort to fill a void left in the previous research efforts. This study will not be concerned with how farmers adjust production in response to price or government policies. The attempt will be made to adept single equation regression models to the examination of how the level of prices and supplies affect a major portion of the income farming sector receives, specifically the cash crop receipts. The specific objectives of this study are as follows: 1. To construct an economet5ric model of South Dakota crop receipts. 2. To demonstrate the model’s use as …
An Analysis Of Crop Production In South Dakota By Types Of Farming Areas, Warren Richards Bailey
An Analysis Of Crop Production In South Dakota By Types Of Farming Areas, Warren Richards Bailey
Electronic Theses and Dissertations
Farmers choose the crops they grow for two principal users; namely, for feed production or for cash income, or for both feed and cash income. It is true that some crops are grown for cover-crops, soil building, weed competition and a multitude of other miscellaneous purposes, many of them of equal or greater importance in the individual case than the two uses of crops which are the basis for this analysis. Crop production in South Dakota has been discussed since the first records of yields were available. the usual unit for production was the legal bushel of a specified weight.
Index Numbers Of South Dakota Farm Prices, Leslie Max Brown
Index Numbers Of South Dakota Farm Prices, Leslie Max Brown
Electronic Theses and Dissertations
During the last generation, index numbers have gradually gone into general use among economists, statisticians, and business men. Because a farmer is a business man, it is important that he know what the trend of farm prices have been in the past and what the current trend is, so that he may anticipate changes which statistical analysis show are taking place in his particular phase of business.The Main objective of this study is to revise the existing South Dakota Farm Price Index. In order to furnish a comparable background for the presentation of these results it was found desirable (1) …
Reaction To Price Change By South Dakota Farmers, John Gordon Mcneely
Reaction To Price Change By South Dakota Farmers, John Gordon Mcneely
Electronic Theses and Dissertations
South Dakota is one of the newest of the important agricultural states. In 1900, many parts of South Dakota were still in the process of being settled. The increase in the amount of land in crops continued without interruption until the time of the World War. We then find a greater demand for farm products than ever before. Inspired by the double incentive of high prices and helping to win the war, South Dakota and United States agriculture had expanded to unprecedented levels by 1920.