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Growing South Dakota (Fall 2021 / Winter 2022), College Of Agriculture, Food And Environmental Sciences
Growing South Dakota (Fall 2021 / Winter 2022), College Of Agriculture, Food And Environmental Sciences
Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)
[Page] 3 SDSU Launches New Professional Program in Veterinary Medicine
[Page] 7 The 6th Generation
[Page] 9 First-Gen Proud
[Page] 11 Student Success
[Page] 21 Alumni News
[Page] 27 CAFES News and Updates
[Page] 45 Jackrabbits Now and Then: A Current Student and Alumni Q&A
Industrial Hemp As A Resource For Birds In Agroecosystems: Human–Wildlife Conflict Or Conservation Opportunity?, Emily A. Kotten, Iona Hennessy, Bryan M. Kluever, Zachary T. Brym, Bradley F. Blackwell, Lee A. Humberg, Page E. Klug
Industrial Hemp As A Resource For Birds In Agroecosystems: Human–Wildlife Conflict Or Conservation Opportunity?, Emily A. Kotten, Iona Hennessy, Bryan M. Kluever, Zachary T. Brym, Bradley F. Blackwell, Lee A. Humberg, Page E. Klug
Human–Wildlife Interactions
Industrial hemp (Cannabis sativa L.; hemp) is an emerging crop in the United States with little known about bird use or the potential for birds to become an agricultural pest. We identified birds associated with hemp fields, using repeated visits to oilseed plots in North Dakota, USA (n = 6) and cannabinoid (CBD) plots in Florida, USA (n = 4) from August to November 2020. We did not control for plot area or density; our observations were descriptive only. We observed 10 species in hemp, 12 species flying over hemp, and 11 species both foraging in and …
Genome-Wide Identification And Evolutionary Analysis Of Cngc Gene Families In Sixteen Brassicaceae Plant Genomes, Akram Ali Baloch, Kaleem U. Kakar, Asma Abro, Muhammad Mushtaq, Zarqa Nawaz, Abrar Hussain
Genome-Wide Identification And Evolutionary Analysis Of Cngc Gene Families In Sixteen Brassicaceae Plant Genomes, Akram Ali Baloch, Kaleem U. Kakar, Asma Abro, Muhammad Mushtaq, Zarqa Nawaz, Abrar Hussain
Turkish Journal of Botany
Cyclic nucleotide-gated channels (CNGCs) are ligand-gated calcium signaling channels, play vital biological functions. Nonetheless, the CNGC gene families have not been well studied in Brassicaceae which includes commercially important and evolutionary model crops. Here, using in silico approaches, we recognized 414 CNGC genes in sixteen sequenced genomes of Brassicaceae species, which represent 10 genera of 8 tribes, ranging between 10-51 genes. These CNGCs can be classified into four main groups (I-IV) and two subgroups (IV-A and IV-B), of which, Group-II CNGC is the oldest that has gradually disappeared from the Arabis alpina L. genome. These results present a comprehensive overview …
Phosphorus Use And Management Based On Fertilizer Placement, Rate Of Application, And Soil Biota In No-Till Situations, Brennan Alexander Bingham Lewis
Phosphorus Use And Management Based On Fertilizer Placement, Rate Of Application, And Soil Biota In No-Till Situations, Brennan Alexander Bingham Lewis
Electronic Theses and Dissertations
Phosphorus (P) pollution has become a concern among multiple scientific organizations as it leads to eutrophication, an algal bloom that depletes lacustrine and marine ecosystems of native species. Multiple strategies can be implemented to reduce phosphorus loss from agriculture fields, which is often implicated as a cause of eutrophication. Soil phosphorus chemistry results in phosphate fertilizers absorbing to clay minerals over time. Soil phosphorus is lost from agricultural fields primarily through wind and water erosion. No-till practices prevent soil erosion, which reduces the phosphorus from loading into waterways. Fertilizer placement affects phosphorus loss. Surface application of phosphorus fertilizers increases the …
Resequencing Worldwide Spinach Germplasm For Identification Of Field Resistance Qtls To Downy Mildew And Assessment Of Genomic Selection Methods, Gehendra Bhattarai, Ainong Shi, Beiquan Mou, James C. Correll
Resequencing Worldwide Spinach Germplasm For Identification Of Field Resistance Qtls To Downy Mildew And Assessment Of Genomic Selection Methods, Gehendra Bhattarai, Ainong Shi, Beiquan Mou, James C. Correll
Horticulture Faculty Publications and Presentations
Downy mildew, commercially the most important disease of spinach, is caused by the obligate oomycete Peronospora effusa. In the past two decades, new pathogen races have repeatedly overcome the resistance used in newly released cultivars, urging the need for more durable resistance. Commercial spinach cultivars are bred with major R genes to impart resistance to downy mildew pathogens and are effective against some pathogen races/isolates. This work aimed to evaluate the worldwide USDA spinach germplasm collections and commercial cultivars for resistance to downy mildew pathogen in the field condition under natural inoculum pressure and conduct genome wide association analysis …
Cenchrus Americanus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Cenchrus Americanus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Pearl millet (Cenchrus americanus). Pearl millet (Cenchrus americanus) is a robust annual grass used for both animal feed and for human consumption. It most likely originates from Sahelian Africa where it has been domesticated for more than 4,000 years. Pearl millet is an important staple food in hot, semi-arid regions of Africa and India due …
Leucaena Leucocephala - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Leucaena Leucocephala - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Leucaena leucocephala. Leucaena is a tropical legume, originating from Central America and the Yucatan Peninsula of Mexico. It is a long-lived shrub or small tree (usually 5-10m, rarely to 20m) which is used for multiple purposes around the world including: firewood, timber, paper pulp, human food, green manure, shade, erosion control and forage.
Centrosema Pascuorum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Centrosema Pascuorum - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Centro (Centrosema pascuorum). Centro is a warm season, annual herbaceous legume native to drier regions of South and Central America (Clements and Williams 1980). It has a twining growth habit with relatively fine stems up to 2m long. The leaves are trifoliate and the leaflets are long (50–100mm) and narrow (5–10mm wide), which can give …
Digitaria Milanjiana - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Digitaria Milanjiana - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Finger grass (Digitaria milanjiana). Finger grass is a subtropical to tropical perennial grass native to a wide range in Africa from South Africa to Ethiopia (Cook et al. 2020). It is now cultivated in Africa, Asia (Malaysia; Thailand; Vietnam), Australia (Northern Territory, Queensland), the Caribbean and in the Pacific (Fiji). Finger grass is a highly …
Urochloa Mosambicensis - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Urochloa Mosambicensis - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Sabi grass (Urochloa mosambicensis). Sabi grass is a creeping, tropical, perennial grass of variable size and growth habit usually with short stolons or tufted and sometimes rooting and branching from the lower nodes. Sabi grass is native to central and southern Africa (i.e. Kenya, Tanzania, Uganda, Malawi, Mozambique, Zambia, Zimbabwe, Botswana, South Africa and Swaziland). …
Megathyrsus Maximus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Megathyrsus Maximus - Environmental Weed Risk Assessment 2022, Department Of Primary Industries And Regional Development, Western Australia
Environmental Weed Risk Assessments
Introducing new plants to an area may have both positive and negative effects on the environment, economy and community. To minimise the negative environmental impact of introducing new agricultural species, DPIRD conducts a risk assessment procedure based on widely accepted scientific standards. This report assesses Panic grass (Megathyrsus maximus). Panic grass (Megathyrsus maximus) is a warm season (C4), perennial grass which is widely used in South America, Japan, India, and sub-tropical Queensland and more recently in the northern agricultural region of Western Australia. It is a productive forage grass for pasture, green-forage, hay and silage. The panic grasses are shade …
Poisonous Plants Of Home And Garden, James P. Smith Jr
Poisonous Plants Of Home And Garden, James P. Smith Jr
Botanical Studies
No abstract provided.
Remote Sensing For Quantifying C3 And C4 Grass Ratios In Pastures, Jordyn Alyssa Bush
Remote Sensing For Quantifying C3 And C4 Grass Ratios In Pastures, Jordyn Alyssa Bush
Theses and Dissertations--Plant and Soil Sciences
The following studies investigate the accuracy and practicality of exploiting the color dichotomy present between C3 and C4 grass species to estimate their respective proportions from drone or camera captured imagery. Understanding the proportions of C3 and C4 grasses in pastures is vital to sound decision making for livestock production. The ability to monitor these proportions remotely will also allow for large scale monitoring as well as detection of changes in botanical composition over time and in response to weather events, management, or climate change. A free green canopy cover (GCC) analyzing software, Canopeo, was used …
First Plant Cell Atlas Symposium Report, Selena L. Rice, Elena Lazarus, Christopher Anderton, Kenneth Birnbaum, Jenniofer Brophy, Benjamin Cole, Diane Dickel, David Ehrhardt, Noah Fahlgren, Margaret Frank, Elizabeth Haswell, Shao-Shan Carol Huang, Samuel Leiboff, Marc Libault, Marisa S. Otegui, Nicholas Provart, R. Glen Uhrig, Seung Y. Rhee, The Plant Cell Atlas Consortium
First Plant Cell Atlas Symposium Report, Selena L. Rice, Elena Lazarus, Christopher Anderton, Kenneth Birnbaum, Jenniofer Brophy, Benjamin Cole, Diane Dickel, David Ehrhardt, Noah Fahlgren, Margaret Frank, Elizabeth Haswell, Shao-Shan Carol Huang, Samuel Leiboff, Marc Libault, Marisa S. Otegui, Nicholas Provart, R. Glen Uhrig, Seung Y. Rhee, The Plant Cell Atlas Consortium
Department of Agronomy and Horticulture: Faculty Publications
The Plant Cell Atlas (PCA) community hosted a virtual symposium on December 9 and 10, 2021 on single cell and spatial omics technologies. The conference gathered almost 500 academic, industry, and government leaders to identify the needs and directions of the PCA community and to explore how establishing a data synthesis center would address these needs and accelerate progress. This report details the presentations and discussions focused on the possibility of a data synthesis center for a PCA and the expected impacts of such a center on advancing science and technology globally. Community discussions focused on topics such as data …
Temporal Changes In The Nutrient Content Of Cattle Dung In The Nebraska Sandhills Ecosystem, Amanda Shine, Martha Mamo, Gandura O. Abagandura, Walter Schacht, Jerry Volesky
Temporal Changes In The Nutrient Content Of Cattle Dung In The Nebraska Sandhills Ecosystem, Amanda Shine, Martha Mamo, Gandura O. Abagandura, Walter Schacht, Jerry Volesky
Department of Agronomy and Horticulture: Faculty Publications
Dung excreted by cattle composes a significant portion of the nutrient inputs in a grazed ecosystem and can have wide-ranging effects on soil properties and vegetation. However, little research has been conducted on the nutrient dynamics of excreted dung in situ that has not been disturbed prior to field sampling. In this study, we analyzed 294 dung pats (1–24 days old) collected from a Nebraska Sandhills meadow to determine water-extractable organic carbon (WEOC), water-extractable nitrogen (WEN), water-extractable phosphorus (WEP), and percent dry matter (DM) changes over time. In addition, we investigated if sample handling - frozen storage – and the …
4-Hydroxyphenylpyruvate Dioxygenase (Hppd)-Inhibiting Herbicides: Past, Present, And Future, Amit J. Jhala, Vipan Kumar, Ramawatar Yadav, Prashant Jha, Mithila Jugulam5, Martin M. Williams Ii, Nicholas E. Hausman, Franck E. Dayan, Paul M. Burton, Richard P. Dale, Jason K. Norsworthy
4-Hydroxyphenylpyruvate Dioxygenase (Hppd)-Inhibiting Herbicides: Past, Present, And Future, Amit J. Jhala, Vipan Kumar, Ramawatar Yadav, Prashant Jha, Mithila Jugulam5, Martin M. Williams Ii, Nicholas E. Hausman, Franck E. Dayan, Paul M. Burton, Richard P. Dale, Jason K. Norsworthy
Department of Agronomy and Horticulture: Faculty Publications
The 4-hydroxyphenylpyruvate dioxygenase (HPPD)-inhibiting herbicides are primarily used for weed control in corn, barley, oat, rice, sorghum, sugarcane, and wheat production fields in the United States. The objectives of this review were to summarize (1) the history of HPPD-inhibitor and their use in the United States, (2) HPPD-inhibitor resistant weeds, their mechanism of resistance, and management, (3) interaction of HPPD-inhibitor with other herbicides, and (4) the future of HPPD-inhibitor-resistant crops. As of 2022, three broadleaf weeds (Palmer amaranth, waterhemp, and wild radish) have evolved resistance to the HPPD-inhibitor. The predominance of metabolic resistance to HPPD-inhibitor was found in aforementioned three …
Charles A. Francis, Abstracts And Publications [1969--2022], December 2022, Charles A. Francis
Charles A. Francis, Abstracts And Publications [1969--2022], December 2022, Charles A. Francis
Department of Agronomy and Horticulture: Faculty Publications
Contents
I. Journal articles (218), p.1
II. Book reviews (60), p. 18
III. Published abstracts (213), p. 23
IV. Books (23), p. 40
V. Chapters in books (81), p. 42
VI. Symposium or workshop proceedings (127), p. 50
VII. Symposia or extension publications edited (31), p. 62
VIII. Miscellaneous (522), p. 65
Improving Taxonomic Delimitation Of Fungal Species In The Age Of Genomics And Phenomics, Ashley Stengel, Kimberly M. Stanke, Amanda C. Quattrone, Joshua R. Herr
Improving Taxonomic Delimitation Of Fungal Species In The Age Of Genomics And Phenomics, Ashley Stengel, Kimberly M. Stanke, Amanda C. Quattrone, Joshua R. Herr
Department of Plant Pathology: Faculty Publications
Species concepts have long provided a source of debate among biologists. These lively debates have been important for reaching consensus on how to communicate across scientific disciplines and for advancing innovative strategies to study evolution, population biology, ecology, natural history, and disease epidemiology. Species concepts are also important for evaluating variability and diversity among communities, understanding biogeographical distributions, and identifying causal agents of disease across animal and plant hosts. While there have been many attempts to address the concept of species in the fungi, there are several concepts that have made taxonomic delimitation especially challenging. In this review we discuss …
Determinants Of Population Genetic Structure In Chamaecrista Fasciculata (Michx.) Greene (Fabaceae) In The Southeastern United States, Mahboubeh Hosseinalizadeh Nobarinezhad, Lisa E. Wallace
Determinants Of Population Genetic Structure In Chamaecrista Fasciculata (Michx.) Greene (Fabaceae) In The Southeastern United States, Mahboubeh Hosseinalizadeh Nobarinezhad, Lisa E. Wallace
Biological Sciences Faculty Publications
Chamaecrista fasciculata is a widely distributed, phenotypically variable species in the eastern U.S. Whereas studies have demonstrated genetic structure and local adaptation in northern areas of its distribution, there has been no comparison of genetic variability among populations at the southern extent where phenotypic variation is more complex. We characterized genetic variation at 14 microsatellite loci for populations in Mississippi and Alabama and compared this to variation in a phenotypic trait, leaf pubescence. Geographic distance, climatic variables, and elevation were evaluated as factors to explain the observed patterns of genetic diversity. A significant amount of variation (19%) resided among populations, …
Regulatory Mechanisms In Arabidopsis Embryogenesis, Sanjay Joshi
Regulatory Mechanisms In Arabidopsis Embryogenesis, Sanjay Joshi
Theses and Dissertations--Plant and Soil Sciences
Plants have amazing regeneration properties with single somatic cells, or groups of cells able to give rise to fully formed plants. One means of regeneration is Somatic Embryogenesis (SE), by which an embryonic structure is formed that “converts” into a plantlet. Somatic embryogenesis has been used as a model for zygotic processes that are buried within layers of maternal tissues. Understanding mechanisms of somatic embryo induction and development are important as a more accessible model for seed development. We rely on seed development not only for most of our caloric intake, but also as a delivery system for engineered crops …
An Evaluation Of Eragrostis Tef For Future Cultivar Development, Eric Wayne Luteyn
An Evaluation Of Eragrostis Tef For Future Cultivar Development, Eric Wayne Luteyn
Theses and Dissertations--Plant and Soil Sciences
The many benefits of utilizing teff (Eragrostis tef) as small grain is well documented in journal publications. Over time the domestication of this species has become essential to the diets of the local population and the livestock living in the African highlands. Current research points to a high diversity of trait characteristics found in many teff populations and the potential utilization of these traits to increase desirable characteristics in both grain and forage varieties. With the overarching goal of adding to what is already known about teff, this study evaluates the different traits that are of interest to …
Invasion Of Plant Communities, Stephen L. Young, Sarah Kimball, Stephen J. Novak
Invasion Of Plant Communities, Stephen L. Young, Sarah Kimball, Stephen J. Novak
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Due to numerous human activities, organisms have been transported and either accidentally or deliberately introduced all around the globe. Biological invasions are now considered to be one of the main drivers of global change because many invasive plants have severe ecological, economic, and health consequences. Thus, there is an ever-growing need to better understand invasions to determine how specific plant species are able to establish in communities and, in many cases, expand their range. Here, we describe the invasion process and how it contributes to the invasion of plant communities. We present an invasion-factor framework (IFF) model that uses three …
Wyoming’S Wild Horse Ranch: History And Description Of A Socio-Ecological Experiment, Alex Sas-Jaworsky, John Derek Scasta
Wyoming’S Wild Horse Ranch: History And Description Of A Socio-Ecological Experiment, Alex Sas-Jaworsky, John Derek Scasta
Human–Wildlife Interactions
The growing population of free-roaming horses (Equus ferus caballus) on western public rangelands has necessitated that federal agencies, such as the Bureau of Land Management (BLM) and U.S. Forest Service, develop novel approaches to curb growth including reproduction management. However, bureaucracy has hindered effective research and application of horse management on public lands and examples on private lands may present new solutions. Here we present the history and current population management strategy for the Wild Horse Ranch (WHR) located in southeastern Wyoming, USA, as an example of an ongoing private entity managing horses. Prior to 1985, this ~6,000-ha …
Nonnative Ungulate Impacts On Greater Sage-Grouse Late Brood-Rearing Habitat In The Great Basin, Usa, Mikiah R. Mcginn, Steven L. Petersen, Melissa S. Chelak, Randy T. Larsen, Loreen Allphin, Brock R. Mcmillan, Dennis L. Eggett, Terry A. Messmer
Nonnative Ungulate Impacts On Greater Sage-Grouse Late Brood-Rearing Habitat In The Great Basin, Usa, Mikiah R. Mcginn, Steven L. Petersen, Melissa S. Chelak, Randy T. Larsen, Loreen Allphin, Brock R. Mcmillan, Dennis L. Eggett, Terry A. Messmer
Human–Wildlife Interactions
Domestic livestock grazing is the dominant land use on much of the current range inhabited by greater sage-grouse (Centrocercus urophasianus; sage-grouse) in the western United States. Nonnative feral horses (Equus ferus caballus) also inhabit important sage-grouse seasonal habitats. Overabundant feral horse populations and improper grazing by domestic cattle (Bos taurus) can impact the health of sagebrush (Artemisia spp.) and desert shrub rangeland communities and native wildlife. These impacts to sage-grouse can be exacerbated when they affect late brood-rearing habitat, which provide the forbs and arthropods required to fledge broods. Managers require better information …
Review Of Loon Lessons: Uncommon Encounters With The Great Northern Diver, By James D. Paruk, Kristin Bianchini
Review Of Loon Lessons: Uncommon Encounters With The Great Northern Diver, By James D. Paruk, Kristin Bianchini
The Prairie Naturalist
Gavia immer Brunnich (Common Loon) is a bird that has captivated bird watchers, wildlife enthusiasts, campers, cottagers, and others interested in the natural world for centuries. The loon also features prominently in Native American mythology. For many, the loon symbolizes the wildness of the north, and it is often used as a sentinel of lake health. Indeed, the Common Loon has inspired a wealth of literature, both scientific and popular, describing this species’ ecology, behavior, and fitness in the face of environmental changes. To this literature, Loon Lessons: Uncommon Encounters with the Great Northern Diver adds a complete and accurate …
Genomic Analysis Of Pollen Grains For Forensic Applications, Luz Kelley
Genomic Analysis Of Pollen Grains For Forensic Applications, Luz Kelley
Electronic Theses and Dissertations, 2020-2023
With over 300,000 plant species on the planet and more than 90% of them relying on pollen for reproduction, palynology, the study of pollen grains plays a vital role in many research fields. One of them is forensic palynology, which uses pollen as a proxy to link individuals or objects to a location or instance. It relies on the fact that (1) pollen is an ever-present feature of the environment; (2) different locations have different pollen signatures, allowing for inference related to spatial tracking; (3) plants bloom at different times, allowing for temporal inference; and (4) pollen is exceptionally durable …
Performance Of Black Soldier Fly Frass Fertiliser On Maize (Zea Mays L.) Growth, Yield, Nutritional Quality, And Economic Returns, C. M. Tanga, D. Beesigamukama, M. Kassie, P. J. Egonyu, Changeh J. Ghemoh, Kiatoko Nkoba, S. Subramanian, A. O. Anyega, S. Ekesi
Performance Of Black Soldier Fly Frass Fertiliser On Maize (Zea Mays L.) Growth, Yield, Nutritional Quality, And Economic Returns, C. M. Tanga, D. Beesigamukama, M. Kassie, P. J. Egonyu, Changeh J. Ghemoh, Kiatoko Nkoba, S. Subramanian, A. O. Anyega, S. Ekesi
All Peer-Reviewed Publications
Although the black soldier fly frass fertiliser (BSFFF) is globally recognised as a promising and potential high-quality organic fertiliser, there is inadequate information on its impact on the growth performance and nutritional status of maize. Furthermore, no information exist on their combination with mineral fertiliser (NPK) as well as economic impact on maize production. This study evaluated the comparative impact of BSFFF, NPK and commercial organic fertiliser (Evergrow®) on growth, nitrogen use efficiency, yield, nutritional quality, and profitability of maize under greenhouse conditions. The treatments included: (1) sole application of BSFFF, conventional compost of brewers’ spent grain (BSG), Evergrow, and …
It Takes A Muscle: Wholes, Holes, And Other Voids, Saar Shemesh
It Takes A Muscle: Wholes, Holes, And Other Voids, Saar Shemesh
Theses and Dissertations
IT TAKES A MUSCLE1
In the BELLY of the BEAST, the HUMAN
in the deep end of a SWIMMING POOL
in a GRAVE, looking up/out from within
at the base of a CRATER, ABYSS, PIT
the room as a CRADLE, INCUBATOR
architecture as MOTHER MOULD.2
____________________________
1 Title is borrowed and abbreviated: Spectral Display, “It Takes A Muscle To Fall In Love,” 1982.
2 For what American-English delineates as ‘mold,’ British-English uses ‘mould’ and is more specific in its technicality. The former doesn’t distinguish in spelling between mold (fungus) and mold (mould). I’m not particularly a fan of …
Soil Hydro-Physical Properties, Computed Tomography Measured Pore Parameters, And Soil Health Indicators As Influenced By Tillage And Crop Rotation Systems, Goutham Thotakuri
Soil Hydro-Physical Properties, Computed Tomography Measured Pore Parameters, And Soil Health Indicators As Influenced By Tillage And Crop Rotation Systems, Goutham Thotakuri
Electronic Theses and Dissertations
Long-term tillage and crop rotation systems are important agricultural management practices as these can have direct impact on the soil’s key properties. The objectives of this study were to (ⅰ) quantify the soil pore characteristics under long-term tillage and crop rotation using X-ray computed tomography (XCT) and to assess the relationships between XCT-measured pore parameters and soil hydro-physical properties; and (ⅱ) evaluate the impacts of long-term tillage and crop rotation on select soil health indicators. The objective (ⅰ) was carried out at Haskell Agricultural Laboratory (HAL), Concord, NE; and objective (ⅰi) was carried out at South Central Agricultural Laboratory (SCAL), …
Combining Soil Health And Fertility Measurements To Improve The Accuracy Of Predicting Corn Grain Yield Responses To P And K Fertilization, Benjamin Groebner
Combining Soil Health And Fertility Measurements To Improve The Accuracy Of Predicting Corn Grain Yield Responses To P And K Fertilization, Benjamin Groebner
Electronic Theses and Dissertations
Researchers have pointed to changes in climate and land management practices to justify the need to reevaluate the accuracy of current South Dakota (SD) corn (Zea mays L.) P and K fertilizer recommendations. Also, an increase in soil health understanding has created the potential for soil health measurements to be used to improve the accuracy of these recommendations. The objectives for this study were to 1) evaluate the current P and K critical values and 2) determine the effect of including soil health indicators on improving fertilizer recommendation accuracy. This project was conducted throughout central and eastern SD from 2019-2021 …