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Impact Of Pesticide Regulation On Innovation In The United States And European Union, Brooke D. Schafer 2019 Purdue University

Impact Of Pesticide Regulation On Innovation In The United States And European Union, Brooke D. Schafer

The Journal of Purdue Undergraduate Research

No abstract provided.


Tracking Life Skill Development Of Indiana 4-H Members, Kayla Groen 2019 Purdue University

Tracking Life Skill Development Of Indiana 4-H Members, Kayla Groen

The Journal of Purdue Undergraduate Research

No abstract provided.


Meandering Water In The Prairie Pothole Region Of South Dakota, Matthew Elliott, Lisa Elliott, Tong Wang 2019 South Dakota State University

Meandering Water In The Prairie Pothole Region Of South Dakota, Matthew Elliott, Lisa Elliott, Tong Wang

Matthew Elliott

This study estimates the agricultural economic impact of the land use changes in the Prairie Pothole Region (PPR) of South Dakota.  The flooding of wetlands has been documented in this region after 1993. At the same time, the conversion of non-cropland to croplands has been observed.  Concerns have been raised if conversions to cropland are conducted on marginal acres that are susceptible to additional flooding.  We found that approximately 140,000 acres of agricultural land have been inundated.  We also found that the new areas of cropland are less prone to flooding than areas that were lost.


Accounting For Risk: Agricultural Land Leases And Natural Disasters, Jim Jansen, Jeff Stokes 2019 University of Nebraska-Lincoln

Accounting For Risk: Agricultural Land Leases And Natural Disasters, Jim Jansen, Jeff Stokes

Cornhusker Economics

According to recent findings from the USDA Agricultural and Resource Management Survey, agricultural land rent totaled $2.44 billion in Nebraska for 2018. The survey found rent as the third largest farm and ranch production expense (USDANASS 2019). Natural disasters limiting the ability of farmers or ranchers to fully utilize rented land pose a financial risk to these operators.

The 2019 floods and related natural disasters lave left many landlords and tenants across Nebraska wondering how resulting damages will influence their agricultural properties . Contractual lease arrangements may have not fully accounted for these natural disasters. This article provides guidance on ...


Meandering Water Dataset, Matthew Elliott 2019 South Dakota State University

Meandering Water Dataset, Matthew Elliott

Matthew Elliott

Areas of land use changes in South Dakota's PPR region and associated soil and agriculture economic attributes.


Proof-Of-Concept Of Spent Mushrooms Compost Torrefaction—Studying The Process Kinetics And The Influence Of Temperature And Duration On The Calorific Value Of The Produced Biocoal, Ewa Syguła, Jacek A. Koziel, Andrzej Białowiec 2019 Wrocław University of Environmental and Life Sciences

Proof-Of-Concept Of Spent Mushrooms Compost Torrefaction—Studying The Process Kinetics And The Influence Of Temperature And Duration On The Calorific Value Of The Produced Biocoal, Ewa Syguła, Jacek A. Koziel, Andrzej Białowiec

Agricultural and Biosystems Engineering Publications

Poland, being the 3rd largest and growing producer of mushrooms in the world, generates almost 25% of the total European production. The generation rate of waste mushroom spent compost (MSC) amounts to 5 kg per 1 kg of mushrooms produced. We proposed the MSC treatment via torrefaction for the production of solid fuel—biocoal. In this research, we examined the MSC torrefaction kinetics using thermogravimetric analyses (TGA) and we tested the influence of torrefaction temperature within the range from 200 to 300 °C and treatment time lasting from 20 to 60 min on the resulting biocoal’s (fuel) properties. The ...


Characterization Of A Machine Vision System To Assess Gestating Sow Space Usage, Suzanne Leonard, Hongwei Xin, Tami M. Brown-Brandl, Brett C. Ramirez, John P. Stinn, Anna Johnson, Kai Liu 2019 Iowa State University

Characterization Of A Machine Vision System To Assess Gestating Sow Space Usage, Suzanne Leonard, Hongwei Xin, Tami M. Brown-Brandl, Brett C. Ramirez, John P. Stinn, Anna Johnson, Kai Liu

Hongwei Xin

Physical space allocation for animals is an important consideration when designing animal production facilities. This physical space is defined by the length, width, and height of a volume designated to an individual animal. Animals require static space when stationary, but additional space is needed to perform dynamic postural transitions. Inadequate space to perform basic behaviors and postural adjustments can reduce productivity and welfare. Conversely, excess space introduces inefficiencies, resulting in production losses and unnecessary construction expenses. The most commonly used sow space guidelines were published in the 1980s. Therefore, modern commercial sow’s static and dynamic space requirements must be ...


Infrared Proximity Measurement System Development And Validation For Classifying Sow Posture, Benjamin C. Smith, Brett C. Ramirez, Steven J. Hoff 2019 Iowa State University

Infrared Proximity Measurement System Development And Validation For Classifying Sow Posture, Benjamin C. Smith, Brett C. Ramirez, Steven J. Hoff

Brett Ramirez

The rapidly progressing field of precision livestock farming is becoming increasingly dependent on the utilization of camera technology. Integration of camera technology involves substantial intellectual input and computational power to acquire, process, and interpret images in real-time. Further, cameras and the necessary computational power can be cost-prohibitive and subsequently, become a constraint for application in a commercial livestock and poultry production systems. The purpose of this study is to develop an infrared proximity sensor based system to serve as a substitute a camera system to perform real-time monitoring of sow posture in farrowing stalls for a potentially lower cost and ...


Control Algorithm Development And Simulation For Comparing Evaporative Pads And Sprinklers For Grow-Finish Pigs, Brett C. Ramirez, Steven J. Hoff, Jay D. Harmon 2019 Iowa State University

Control Algorithm Development And Simulation For Comparing Evaporative Pads And Sprinklers For Grow-Finish Pigs, Brett C. Ramirez, Steven J. Hoff, Jay D. Harmon

Brett Ramirez

Seasonal variability attributed to heat stress (HS) has a large economic impact on the US swine industry by reducing daily gain and finishing market weights. Strategies to mitigate HS lack evidence showing effectiveness in different climates and have not been adequately controlled to provide a thermally optimum environment for pigs. Hence, the goal of this study was to describe the initial experimental design and instrumentation as well as develop innovative control algorithms for operating evaporative pads (EPs) and sprinklers. Located in northeast Iowa, a four room (~1,875 head per room) grow-finish facility featured side-by-side rooms separated by a hallway ...


Characterization Of A Machine Vision System To Assess Gestating Sow Space Usage, Suzanne Leonard, Hongwei Xin, Tami M. Brown-Brandl, Brett C. Ramirez, John P. Stinn, Anna Johnson, Kai Liu 2019 Iowa State University

Characterization Of A Machine Vision System To Assess Gestating Sow Space Usage, Suzanne Leonard, Hongwei Xin, Tami M. Brown-Brandl, Brett C. Ramirez, John P. Stinn, Anna Johnson, Kai Liu

Brett Ramirez

Physical space allocation for animals is an important consideration when designing animal production facilities. This physical space is defined by the length, width, and height of a volume designated to an individual animal. Animals require static space when stationary, but additional space is needed to perform dynamic postural transitions. Inadequate space to perform basic behaviors and postural adjustments can reduce productivity and welfare. Conversely, excess space introduces inefficiencies, resulting in production losses and unnecessary construction expenses. The most commonly used sow space guidelines were published in the 1980s. Therefore, modern commercial sow’s static and dynamic space requirements must be ...


Control Algorithm Development And Simulation For Comparing Evaporative Pads And Sprinklers For Grow-Finish Pigs, Brett C. Ramirez, Steven J. Hoff, Jay D. Harmon 2019 Iowa State University

Control Algorithm Development And Simulation For Comparing Evaporative Pads And Sprinklers For Grow-Finish Pigs, Brett C. Ramirez, Steven J. Hoff, Jay D. Harmon

Jay D. Harmon

Seasonal variability attributed to heat stress (HS) has a large economic impact on the US swine industry by reducing daily gain and finishing market weights. Strategies to mitigate HS lack evidence showing effectiveness in different climates and have not been adequately controlled to provide a thermally optimum environment for pigs. Hence, the goal of this study was to describe the initial experimental design and instrumentation as well as develop innovative control algorithms for operating evaporative pads (EPs) and sprinklers. Located in northeast Iowa, a four room (~1,875 head per room) grow-finish facility featured side-by-side rooms separated by a hallway ...


Infrared Proximity Measurement System Development And Validation For Classifying Sow Posture, Benjamin C. Smith, Brett C. Ramirez, Steven J. Hoff 2019 Iowa State University

Infrared Proximity Measurement System Development And Validation For Classifying Sow Posture, Benjamin C. Smith, Brett C. Ramirez, Steven J. Hoff

Steven J. Hoff

The rapidly progressing field of precision livestock farming is becoming increasingly dependent on the utilization of camera technology. Integration of camera technology involves substantial intellectual input and computational power to acquire, process, and interpret images in real-time. Further, cameras and the necessary computational power can be cost-prohibitive and subsequently, become a constraint for application in a commercial livestock and poultry production systems. The purpose of this study is to develop an infrared proximity sensor based system to serve as a substitute a camera system to perform real-time monitoring of sow posture in farrowing stalls for a potentially lower cost and ...


Control Algorithm Development And Simulation For Comparing Evaporative Pads And Sprinklers For Grow-Finish Pigs, Brett C. Ramirez, Steven J. Hoff, Jay D. Harmon 2019 Iowa State University

Control Algorithm Development And Simulation For Comparing Evaporative Pads And Sprinklers For Grow-Finish Pigs, Brett C. Ramirez, Steven J. Hoff, Jay D. Harmon

Steven J. Hoff

Seasonal variability attributed to heat stress (HS) has a large economic impact on the US swine industry by reducing daily gain and finishing market weights. Strategies to mitigate HS lack evidence showing effectiveness in different climates and have not been adequately controlled to provide a thermally optimum environment for pigs. Hence, the goal of this study was to describe the initial experimental design and instrumentation as well as develop innovative control algorithms for operating evaporative pads (EPs) and sprinklers. Located in northeast Iowa, a four room (~1,875 head per room) grow-finish facility featured side-by-side rooms separated by a hallway ...


Subsurface Mimo: A Beamforming Design In Internet Of Underground Things For Digital Agriculture Applications, Abdul Salam 2019 Purdue University

Subsurface Mimo: A Beamforming Design In Internet Of Underground Things For Digital Agriculture Applications, Abdul Salam

Faculty Publications

In underground (UG) multiple-input and multiple-output (MIMO), the transmit beamforming is used to focus energy in the desired direction. There are three different paths in the underground soil medium through which the waves propagates to reach at the receiver. When the UG receiver receives a desired data stream only from the desired path, then the UG MIMO channel becomes three path (lateral, direct, and reflected) interference channel. Accordingly, the capacity region of the UG MIMO three path interference channel and degrees of freedom (multiplexing gain of this MIMO channel requires careful modeling). Therefore, expressions are required for the degree of ...


2018 Nebraska Top Efficient Farms, Tina N. Barrett 2019 University of Nebraska-Lincoln

2018 Nebraska Top Efficient Farms, Tina N. Barrett

Cornhusker Economics

A quarter doesn’t buy much these days so it’s easy to dismiss the value, but when 25 cents is what separates the cost of production per bushel of corn between two groups, the difference in net return starts to add up.

In 2018 the net farm income average of all farms included in the Nebraska Farm Business, Inc. group was $94,121. That was a surprisingly high number, but when compared to the net income of $261,059 for the group called the Top Efficient Farms, it shows there is a significant difference. The Top Efficient Farms group ...


Statistical And Machine Learning Methods Evaluated For Incorporating Soil And Weather Into Corn Nitrogen Recommendations, Curtis J. Ransom, Newell R. Kitchen, James J. Camberato, Paul R. Carter, Richard B. Ferguson, Fabián G. Fernández, David W. Franzen, Carrie A. M. Laboski, D. Brenton Myers, Emerson D. Nafziger, John E. Sawyer, John F. Shanahan 2019 University of Missouri

Statistical And Machine Learning Methods Evaluated For Incorporating Soil And Weather Into Corn Nitrogen Recommendations, Curtis J. Ransom, Newell R. Kitchen, James J. Camberato, Paul R. Carter, Richard B. Ferguson, Fabián G. Fernández, David W. Franzen, Carrie A. M. Laboski, D. Brenton Myers, Emerson D. Nafziger, John E. Sawyer, John F. Shanahan

John E. Sawyer

Nitrogen (N) fertilizer recommendation tools could be improved for estimating corn (Zea mays L.) N needs by incorporating site-specific soil and weather information. However, an evaluation of analytical methods is needed to determine the success of incorporating this information. The objectives of this research were to evaluate statistical and machine learning (ML) algorithms for utilizing soil and weather information for improving corn N recommendation tools. Eight algorithms [stepwise, ridge regression, least absolute shrinkage and selection operator (Lasso), elastic net regression, principal component regression (PCR), partial least squares regression (PLSR), decision tree, and random forest] were evaluated using a dataset containing ...


Qqs Orphan Gene And Its Interactor Nf‐Yc4 Reduce Susceptibility To Pathogens And Pests, Mingsheng Qi, Wenguang Zheng, Xuefeng Zhao, Jessica D. Hohenstein, Yuba Kandel, Seth O’Conner, Yifan Wang, Chuanlong Du, Dan Nettleton, Gustavo C. Macintosh, Gregory L. Tylka, Eve Syrkin Wurtele, Steven A. Whitham, Ling Li 2019 Iowa State University

Qqs Orphan Gene And Its Interactor Nf‐Yc4 Reduce Susceptibility To Pathogens And Pests, Mingsheng Qi, Wenguang Zheng, Xuefeng Zhao, Jessica D. Hohenstein, Yuba Kandel, Seth O’Conner, Yifan Wang, Chuanlong Du, Dan Nettleton, Gustavo C. Macintosh, Gregory L. Tylka, Eve Syrkin Wurtele, Steven A. Whitham, Ling Li

Ling Li

Enhancing the nutritional quality and disease resistance of crops without sacrificing productivity is a key issue for developing varieties that are valuable to farmers and for simultaneously improving food security and sustainability. Expression of the Arabidopsis thaliana species‐specific AtQQS (Qua‐Quine Starch) orphan gene or its interactor, NF‐YC4 (Nuclear Factor Y, subunit C4), has been shown to increase levels of leaf/seed protein without affecting the growth and yield of agronomic species. Here, we demonstrate that overexpression of AtQQS and NF‐YC4 in Arabidopsis and soybean enhances resistance/reduces susceptibility to viruses, bacteria, fungi, aphids, and soybean cyst ...


The Use Of Agricultural Robots In Weed Management And Control, Brian L. Steward, Jingyao Gai, Lie Tang 2019 Iowa State University

The Use Of Agricultural Robots In Weed Management And Control, Brian L. Steward, Jingyao Gai, Lie Tang

Brian L. Steward

Weed management and control are essential for the production of high-yielding and high-quality crops, and advances in weed control technology have had a huge impact on agricultural productivity. Any effective weed control technology needs to be both robust and adaptable. Robust weed control technology will successfully control weeds in spite of variability in the field conditions. Adaptable weed control technology has the capacity to change its strategy in the context of evolving weed populations, genetics, and climatic conditions. This chapter focuses on key work in the development of robotic weeders, including weed perception systems and weed control mechanisms. Following an ...


Expression Of Multi-Domain Lytic Peptide Genes In Transgenic Plants For Disease Resistance, George Biliarski 2019 University of Nebraska - Lincoln

Expression Of Multi-Domain Lytic Peptide Genes In Transgenic Plants For Disease Resistance, George Biliarski

Theses, Dissertations, and Student Research in Agronomy and Horticulture

Four non-plant multi-domain lytic peptide genes coding for antimicrobial peptides were expressed in Nicotiana benthamiana plants and tested against three fungal pathogens: Sclerotinia sclerotiorum, Rhizoctonia solani, and Pythium sp. Detached-leaf bioassay was performed for the transgenic plants carrying multi-domain lytic peptide constructs and compared with transgenic and wild type control plants. Symptom area of each leaf was measured with high precision using the Compu-Eye software and processed by SAS statistical package. The transgenic lines ORF13 and RSL1 showed substantial resistance to Sclerotinia sclerotiorum infection producing significantly smaller lesion areas compared to control plants. However, these lines were not ...


Leaky Gut’S Contribution To Inefficient Nutrient Utilization, S. K. Kvidera, E. A. Horst, M. Al-Qaisi, M. J. Dickson, R. P. Rhoads, A. F. Keating, L. H. Baumgard 2019 Iowa State University

Leaky Gut’S Contribution To Inefficient Nutrient Utilization, S. K. Kvidera, E. A. Horst, M. Al-Qaisi, M. J. Dickson, R. P. Rhoads, A. F. Keating, L. H. Baumgard

Aileen Keating

There are a variety of situations in an animal’s life when nutrient utilization is reprioritized from productive towards agriculturally unproductive purposes. Two well-known examples that markedly reduce production are heat stress and ketosis. Decreased feed intake, experienced during both disorders, is unable to fully explain production losses. Additionally, both disorders are characterized by negative energy balance, body weight loss, inflammation, and liver fat accumulation. While the metabolism of ketosis and heat stress has been thoroughly studied for the last 40 years, the initial insult in the cascade of events ultimately reducing productivity in both heat-stressed and ketotic cows has ...


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