• How Salinity Influences Soil Organisms: Earthworms, Archaea, Bacteria and Fungi 

  Castleberry, Cecelia Bartley (North Dakota State University, 2023)

  Soil salinity is a naturally-occurring issue in the Great Plains. Current standards for saline soil designation are based on plant tolerance levels. This thesis expands salinity knowledge into salinity responses of other ...

• An Evaluation of Electrical Conductivity Meters for Making In-Field Soil Salinity Measurements 

  Briese, Lee Galen (North Dakota State University, 2010)

  Soil electrical conductivity (EC) can be used as a parameter to assist agricultural producers in making economically important management decisions. Since particular crops and crop varieties respond dynamically to soluble ...

• Shifting Perspectives: Desocialization and the Journey Toward Critical Consciousness 

  Mathers, Angela Marie (North Dakota State University, 2010)

  The purpose of this study was to investigate how a service-learning course fosters students' development of a critical consciousness. Participants of this research study were students who participated in the 2009 ...

• Soybean Water Stress Development and Mitigation in West-Central North Dakota 

  Wirtz, Jeremy (North Dakota State University, 2020)

  In recent years, soybean [Glycine max. (L.) Merr.] production has moved into west-central North Dakota, an area known for common deficits between potential plant water use and annual rainfall. Soybean seed yield reductions ...

• Effects of Major Flooding on Water and Sediment Characteristics in an Urban Enviromnent 

  Guy, Adam Christopher (North Dakota State University, 2011)

  Spring flooding of the Red River of the North is a common phenomenon, but no infonnation exits on how these flooding events impact both water and sediment quality within an urban area. The objectives of this study were ...

• Evaluation of 1:5 Soil to Water Extract Electrical Conductivity Methods and Comparison to Electrical Conductivity of Saturated Paste Extract 

  He, Yangbo (North Dakota State University, 2011)

  Conducting a 1 :5 soil:water extract to measure electrical conductivity (EC) is an approach to assess salinity and is the preferred method used in Australia. However, the influence of salinity on plant growth is predominantly ...

• An Examination of Land Preparation Methods to Alleviate Common Issues Associated With Pipeline Reclamation 

  Lardy, Jarrett (North Dakota State University, 2022)

  Post-seeding land preparation methods can improve reclamation success; however, limited research is available for the Williston Basin. A field study evaluated four treatments: land imprinting, hydromulch, straw crimping, ...

• Calcium Acetate: An Alternative to Gypsum for Brine Impacted Soils 

  Peterson, Annalie (North Dakota State University, 2022)

  With North Dakota being ranked as a leading producer of oil and natural gas in the United States, the possibility of accidental produced water (aka “brine” or “salt water”) spills is a continuous concern. Brine water poses ...

• Soil Biological Functioning and Recovery in Soils Disturbed From Bakken Oil and Gas Activities 

  Bartsch, Zachary John (North Dakota State University, 2022)

  Oil and gas activity-related soil disturbances can alter soil properties and reduce microbial function, which is crucial for nutrient cycling and proper soil function. The goal of this research was to investigate effects ...

• Seeding Time and Interseeded Cover Crop Species Influence Sugarbeet Yield and Quality 

  Sigdel, Sailesh (North Dakota State University, 2020)

  Field experiments were conducted to evaluate cover crop interseeding time and species effect on sugarbeet production during 2018 and 2019 growing seasons. Cover crops were first interseeded in June and second interseeding ...

• Can Soil Microbial Activity Be Improved With the Use of Amendments? 

  Kruger, Matthew Wayne (North Dakota State University, 2020)

  Low microbial activity and associated nutrient cycling are concerns in agricultural problem soils. The objectives of this study were to investigate microbial response on problem soils to amendments, drying-wetting cycles, ...

• The Effect of Salinity on Soil Microbial Community Structure 

  Ries, Mackenzie Lynn (North Dakota State University, 2020)

  Soil salinity is a widespread problem that affects crop productivity. We expect that saline soils also have altered microbial community structure, soil food webs and related soil properties. To test this, we sampled field ...

• Superabsorbent Polymer Effects on Soil Physical Properties and Use as a Compaction Alleviation Amendment in Surface Coal Mine Reclamation 

  Ostrand, Megan Sue (North Dakota State University, 2019)

  Surface coal mine reclamation is challenged by alterations in soil characteristics, compaction being the most plant-yield reducing. Superabsorbent polymers (SAPs) ability to retain large volumes of water gives them the ...

• Soil Biological Temporal Variability as Functions of Physiochemical States and Soil Disturbance 

  Leitner, Zachary Robert (North Dakota State University, 2019)

  Within our ecosystems, soil biota control an array of functions, such as nutrient cycling and decomposition, and have been pursued as a soil quality indicator. Though microbial communities are known to be a reflection of ...

• Impacts of Kentucky Bluegrass and Patch-Burn Grazing Management on Soil Properties in the Northern Great Plains 

  Gerhard, Leslie Marie (North Dakota State University, 2019)

  Kentucky bluegrass (Poa pratensis L.; hereafter referred to as bluegrass) has rapidly invaded the northern Great Plains over the past three decades, leading to declines in native plant diversity. A knowledge gap exists ...

• Relationship of Vegetation Indices from Drone-Based Passive Optical Sensors with Corn Grain Yield and Sugar Beet Root Yield and Quality 

  Olson, Daniel O. (North Dakota State University, 2019)

  The main goal of this study was to calibrate small unmanned aircraft system (SUAS) based vegetation indices with fertilizer-N application rate and yield for corn and sugar beet. It was hypothesized that canopy reflectance ...

• The Relative Nitrogen Fixation Rate and Colonization of Arbuscular Mycorrhizal Fungi of Iron Deficient Soybeans 

  Podrebarac, Frances Ann (North Dakota State University, 2011)

  Soybeans (Glycine max L. Merr.) are a symbiont of two beneficial associations: biological nitrogen fixation (BNF) with Bradyrhizobium japonicum, and arbuscular mycorrhizal fungi (AMF). Within the Northern Great Plains ...

• Phosphorus Dynamics and Crop Productivity in Bakken Crude-Oil Remediated Soils 

  Croat, Samantha Jo (North Dakota State University, 2018)

  Thermal desorption (TD), a remediation method used to remove hydrocarbons from contaminated soils, may cause changes in soil properties that threaten soil function and plant productivity. The goal of this research is to ...

• Redistribution and fate of applied ¹⁵N-enriched urea under irrigated continuous corn production 

  Schindler, Frank Vincent (North Dakota State University, 1996)

  Understanding the redistribution and fate of N is essential for justification of Best Management Practices (BMP). This project was conducted on a Hecla fine sandy loam (sandy, mixed, Aquic Haploboroll) soil at the BMP field ...

• Can We Increase Crop Yield Adopting Tile Drainage in Fargo Clay Soil? 

  Acharya, Umesh (North Dakota State University, 2018)

  Subsurface drainage has recently become common for agriculturally productive soils and key to maintain and improve crop production in poorly drained, frigid clay soils. The first study was conducted for four years (2014-17) ...

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