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Making Kinship With Plants And The Multiple Meanings Of Care In Amazonian Indigenous Gardens, Ana Gabriela Morim De Lima
Making Kinship With Plants And The Multiple Meanings Of Care In Amazonian Indigenous Gardens, Ana Gabriela Morim De Lima
Tipití: Journal of the Society for the Anthropology of Lowland South America
This paper focuses on the bonds of kinship and care between humans, cultivated plants, and other-than-human beings in Indigenous gardens, myths, rituals, and shamanism, across Lowland South America. Drawing on Krahô ethnography and a review of ethnological literature, it highlights the contributions of Americanist ethnology to wider debates about multispecies relation, particularly with regard to vegetal agency. By exploring the ambivalent meanings of care- such as “caring,” “raising,” and “nurturing,” as well as “being careful,” “having respect,” and “taking precautions”- I examine how kinship relations between humans and their cultivated plants are made through care and unmade through its absence …
Is Trimethylamine N-Oxide A Friend, Foe, Or Hormetic Agent In Patients With Parkinson’S Disease: A Focused Review Of One Microbial Metabolite, Abraham B. Alton
Is Trimethylamine N-Oxide A Friend, Foe, Or Hormetic Agent In Patients With Parkinson’S Disease: A Focused Review Of One Microbial Metabolite, Abraham B. Alton
Student Works
This review synthesizes recent literature examining trimethylamine N-oxide (TMAO) synthesis and its potential role in Parkinson’s Disease (PD) pathology. An increase in TMAO plasma and CSF concentration is associated with PD progression and severity. TMAO biosynthesis is a two-step process. First, precursors including carnitine and choline are converted to trimethylamine (TMA) by gut microbes. Second, TMAO is oxidized to TMAO in the liver. Once absorbed into circulation TMAO crosses the blood brain barrier and may influence PD disease pathology by increasing neuroinflammation and astrocyte activation and damaging the cerebral lymphatic system. These mechanisms may contribute to the cognitive and motor …
On The Brink Of Silence: Ethnographic Perspectives On Hunting And Forest Life Among The Awa Guajá In Eastern Amazonia, Uirá Garcia
On The Brink Of Silence: Ethnographic Perspectives On Hunting And Forest Life Among The Awa Guajá In Eastern Amazonia, Uirá Garcia
Tipití: Journal of the Society for the Anthropology of Lowland South America
The central theme of this article basically resides in the relationship established by indigenous peoples between their hunting practices and the forest. Indigenous ways of connecting ‘hunting’ and ‘forest’ necessarily pass through other modes of knowing, only marginally – if it all – dependent on vision. On the contrary, sounds, smells and even dreams are, for many South American indigenous collectives, more trustworthy indices than what the eye sees. This article divides into two parts. In the first, I set out the main ideas related to the anthropological study of hunting in Amazonia at a conceptual level. In the second, …
A Call To Action: Towards A Compendium For Culturally Responsive And Inclusive Pain Management, Arvie Vitente, Rob Sweet, Lester Jones
A Call To Action: Towards A Compendium For Culturally Responsive And Inclusive Pain Management, Arvie Vitente, Rob Sweet, Lester Jones
Philippine Journal of Physical Therapy
Introduction: Pain is a pervasive global health problem, yet its assessment and management remain shaped by biomedical, monolingual, and culturally narrow assumptions that do not fully reflect the lived realities of diverse populations. Although contemporary pain science recognizes pain as a personal experience influenced by biological, psychological, and social factors, inequities persist across racial, ethnic, linguistic, and cultural groups.
Main Body: These inequities affect how pain is expressed, interpreted, documented, and treated, particularly among Indigenous peoples, migrants, refugees, and patients with limited English proficiency. In this perspective, we call for the development of a comprehensive compendium on culturally responsive and …
Self-Reported Gum Bleeding, Oral Health Behaviors, And Cardiovascular Risk Indicators Among Adults Aged 45-70 In A Community Dental Setting., Kimberleigh Edwards
Self-Reported Gum Bleeding, Oral Health Behaviors, And Cardiovascular Risk Indicators Among Adults Aged 45-70 In A Community Dental Setting., Kimberleigh Edwards
Population Health Leadership and Analytics Theses
Cardiovascular disease remains a leading cause of morbidity and mortality among adults in the United States, particularly during midlife and older adulthood. Periodontal inflammation and poor oral hygiene behaviors have been linked to increased cardiovascular risk through systemic inflammatory pathways. This exploratory cross-sectional study described patterns of self reported gum bleeding, oral hygiene behaviors, and cardiovascular risk factors among 29 adults aged 45 to 70 at a community dental clinic using the researcher-developed Oral and Heart Health Study Questionnaire. Fourteen participants reported both gum bleeding and at least one cardiovascular risk factor. Participants who reported inconsistent flossing and infrequent professional …
Customary Forest Management Based On Cultural Spatial Tripartite Scheme In Tenganan Pegringsingan, Aloysius Gonzaga Dimas Bintarta Raharja, M. Baiquni, S. Setiadi
Customary Forest Management Based On Cultural Spatial Tripartite Scheme In Tenganan Pegringsingan, Aloysius Gonzaga Dimas Bintarta Raharja, M. Baiquni, S. Setiadi
Forest and Society
The customary forest of Tenganan Pegringsingan in Karangasem, Bali, received the Customary Forest Decree from the Ministry of Environment and Forestry in 2019 as a part of Social Forestry implementation. This decree marked the beginning of granting rights to manage the customary forest for the traditional village in Bali. The Tenganan Pegringsingan indigenous community manages their customary forest through a traditional bureaucratic scheme, employing the authority of Krama Desa and a set of customary laws (awig-awig). Krama Desa acts as the governance authority for the utilization of the Tenganan Pegringsingan customary forest, involving two parties: the inheritance rights …
Impetus 2025 – The Philippine Physical Therapy Association (Ppta) National Convention: Platform Presentations, Impetus 2026
Impetus 2025 – The Philippine Physical Therapy Association (Ppta) National Convention: Platform Presentations, Impetus 2026
Philippine Journal of Physical Therapy
No abstract provided.
Clinician Perspectives On Fistula Mental Health, Victoria K. Leonard
Clinician Perspectives On Fistula Mental Health, Victoria K. Leonard
Doctoral Dissertations
Background – Obstetric fistula is a childbirth injury caused by prolonged labor that leads to stillbirth and incontinence, spurring social exclusion and isolation. These layers of trauma put women with fistula at great risk for psychological suffering, which has profound negative socioeconomic impacts on them, their families, and communities. This study captured treatment as usual at Comprehensive Community Based Rehabilitation in Tanzania (CCBRT), the country’s largest provider of fistula care.
Method – Improving holistic fistula treatment requires engaging the clinicians who care for women with fistula. This study aimed to investigate the training, beliefs, and treatment approaches of nurses and …
Rocatinlimab As A Novel Treatment Strategy For Atopic Dermatitis, Haylee Whyde, Evan Blazek, Macy Davis, Parker George, Alex Lowery, Connor Dains, Brenna Hissong, David Koh
Rocatinlimab As A Novel Treatment Strategy For Atopic Dermatitis, Haylee Whyde, Evan Blazek, Macy Davis, Parker George, Alex Lowery, Connor Dains, Brenna Hissong, David Koh
Pharmacy and Wellness Review
Atopic dermatitis is a common chronic inflammatory skin disease that affects millions of children and adults in the United States. Atopic dermatitis is characterized by recurrent pruritus, erythema, and relapsing symptoms that can significantly impair quality of life. The pathophysiology of atopic dermatitis involves epidermal barrier dysfunction, immune dysregulation, and genetic susceptibility. Atopic dermatitis guidelines follow a stepwise approach that begins with a severity assessment, trigger avoidance, and nonpharmacologic and pharmacologic treatments. First-line therapies include topical corticosteroids (TCSs), topical calcineurin inhibitors (TCIs), and emollients. Crisaborole and topical ruxolitinib are used for mild-to-moderate disease when prior therapy has been inadequate. Monoclonal …
Between The Root And The Stem: On Women-Plant Relations, Predation And Familiarisation Among The Awajún (Upper Amazonas, Peru), Nils Haukeland Vedal
Between The Root And The Stem: On Women-Plant Relations, Predation And Familiarisation Among The Awajún (Upper Amazonas, Peru), Nils Haukeland Vedal
Tipití: Journal of the Society for the Anthropology of Lowland South America
What to do with the problem of predation? This is not only a conundrum for anthropologists working in what has become known as animist societies. The gardening activities of the Awajún people of northern Peru’s high jungle are modelled on the teachings of the original mother of cultivated plants, Núgkui, who granted the Awajún their cultivars. Yet gardening is not an easy matter. The manioc sprouts seek to suck the blood of gardeners unless they are treated correctly. This article explores how predation is constantly kept at bay through familiarisation practices in which garden plants are made into the vegetative …
Navigating Trust: The Impact Of Social Media Influencers On Gen Z Health Behaviors, Abigail Stelling
Navigating Trust: The Impact Of Social Media Influencers On Gen Z Health Behaviors, Abigail Stelling
Honors Thesis
Social media plays a defining role in the daily lives of Gen Z, influencing how people communicate, access information, and make decisions. More than a form of entertainment, social media is a powerful source that shapes identity, perceptions, and behaviors. As the first generation to grow up fully immersed in a digital world, Gen Z is uniquely impacted by the content and interactions that occur on social media platforms. Within this digital landscape, social media influencers have emerged as powerful figures. These individuals use large online platforms to promote lifestyles, products, and behaviors. Influencers often have the ability to shape …
"Nothing Is Simple". An Ethnographic Theory And Its History, Marcio Goldman, Elizabeth Ewart, Patrick O'Hare
"Nothing Is Simple". An Ethnographic Theory And Its History, Marcio Goldman, Elizabeth Ewart, Patrick O'Hare
Tipití: Journal of the Society for the Anthropology of Lowland South America
This lecture was given on April 16th, 2026, at St Andrews University, as the 2nd Peter Gow Memorial Lecture. Its aim is not only to pay tribute to a great anthropologist who died prematurely, but also to explore a fundamental aspect of his work. Namely, the fact that Peter Gow developed what we might call an “ethnographic theory of mixture”. This theory is elaborated here through a comparison between Peter Gow’s work and my own, with a particular focus on what I have termed the Afro-indigenous relationship, counter-miscegenation, and counter-syncretism.
Evaluating The Market Withdrawal Of Andexanet Alfa, Jordyn Linfield, Addisyn Cooper, Alexander Defranco, Emma Gerding, Jessica Kelley, Tyler Henney, Connor Dains, Brenna Hissong, Brittany Bates
Evaluating The Market Withdrawal Of Andexanet Alfa, Jordyn Linfield, Addisyn Cooper, Alexander Defranco, Emma Gerding, Jessica Kelley, Tyler Henney, Connor Dains, Brenna Hissong, Brittany Bates
Pharmacy and Wellness Review
The coagulation cascade comprises intrinsic, extrinsic, and common pathways that converge when thrombin converts fibrinogen (factor I) into fibrin, leading to fibrin mesh formation, stabilization of the platelet plug, and ultimately thrombus formation. Inhibition of the coagulation cascade can be achieved with a variety of anticoagulant medications, including direct oral anticoagulants (DOACs). The mechanism of action of DOACs is to inhibit either factor Xa or thrombin. Reversal of anticoagulation remains an important clinical consideration when managing patients on DOACs who experience serious bleeding events. Andexanet alfa is a recombinant, modified human factor Xa protein previously indicated for patients receiving rivaroxaban …
Beyond Behavior: Understanding Trauma As A Pathway To Transform Classroom Discipline, Jennifer J. Snead
Beyond Behavior: Understanding Trauma As A Pathway To Transform Classroom Discipline, Jennifer J. Snead
Masters Projects
Many students entering early childhood and elementary classrooms have experienced trauma that impacts their ability to learn, regulate emotions, and fully participate in school. Research shows that adverse childhood experiences (ACEs) can affect brain development, particularly in areas related to attention, memory, and self-regulation—skills essential for success in the classroom. Even though trauma-related behaviors are becoming more common, many educators report feeling underprepared to recognize and respond to these behaviors due to limited training in trauma-informed practices. As a result, student behavior is often misunderstood as defiance, which can lead to discipline practices that do not address the root cause. …
Rural-Urban Differences In Hypertension Prevalence And Control In A Large Regional Health System Cohort, Yordanos M Tiruneh, Susan Mcbride, Huaxin Song, Matthew Decaro, Alaa Rihan, Theresa Byrd, Alex Baham, Jared W Magnani, Elmer V Bernstam, Jarett D Berry
Rural-Urban Differences In Hypertension Prevalence And Control In A Large Regional Health System Cohort, Yordanos M Tiruneh, Susan Mcbride, Huaxin Song, Matthew Decaro, Alaa Rihan, Theresa Byrd, Alex Baham, Jared W Magnani, Elmer V Bernstam, Jarett D Berry
Faculty, Staff and Student Publications
Background: Rural US populations bear a high burden of cardiovascular disease, with hypertension contributing to the rural-urban gap. We examined hypertension prevalence and control across the rural-urban continuum among patients in a large healthcare system in Northeast Texas.
Methods: We analyzed the electronic health record data from 363,539 patients with at least one outpatient encounter between September 2021 and April 2025. We defined hypertension using ICD-10-CM codes, antihypertensive prescriptions, or a blood pressure ≥ 130/80 mm Hg. We classified rurality using the Rural-Urban Commuting Area categories. Multivariable logistic regression models were adjusted for age, sex, race, ethnicity, insurance, and level …
Choline Counteracts Pregnancy Undernutrition-Associated Colitis In Sheep By Restoring Microbiota Driven Bile Acid Metabolism, Weibin Wu, Peng Jiao, Yamei Gu, Huizhen Lu, Caiyun Fan, Zheng Sun, Lizhuang Hao, Shengyong Mao, Jianbo Cheng, Yanfeng Xue
Choline Counteracts Pregnancy Undernutrition-Associated Colitis In Sheep By Restoring Microbiota Driven Bile Acid Metabolism, Weibin Wu, Peng Jiao, Yamei Gu, Huizhen Lu, Caiyun Fan, Zheng Sun, Lizhuang Hao, Shengyong Mao, Jianbo Cheng, Yanfeng Xue
Faculty, Staff and Students Publications
High-fertility sheep experience undernutrition during late gestation, which induces body metabolic disruption and intestinal inflammation. Crucially, the gut microbiota-bile acid axis is a promising intestinal inflammation target, but how choline modulates this axis in livestock enteritis is unknown. This study investigated choline's protective mechanisms against undernutrition-induced intestinal inflammation in sheep, focusing on gut microbiota and bile acid regulation. Choline consistently alleviates colitis severity, restores epithelial barrier integrity, and suppresses intestinal inflammation. These protective effects are accompanied by pronounced remodeling of the colonic microbial ecosystem, characterized by the enrichment of Clostridiales bacterium to elevate bile salt hydrolase activity and regulate bile …
Teacher Agency In The Classroom, Joy Gibson, Lizeth Sandoval
Teacher Agency In The Classroom, Joy Gibson, Lizeth Sandoval
The Scholarship Without Borders Journal
Teacher agency is an important factor in student success; it is the ability to intentionally lead classrooms to support student learning outcomes, environments, and school culture. However, teacher agency remains underexamined as a construct for neurodiverse students in K-12 classrooms. This literature review argues that teacher agency is an essential component of genuine inclusivity for neurodiverse students and supports asset-based instruction. Grounded in social-cultural theory, this literature review examines five interconnected areas: theoretical foundation for teacher agency, neurodiversity as an asset-based approach, instructional strategies, teacher development, and the role of collaboration and family engagement. Findings suggest that instructional barriers, including …
When The Therapist Is An Algorithm: Understanding Autism Spectrum Students’ Acceptance Of Generative Ai As A Mental Well-Being Tool Through The Technological Acceptance Model, Jossy P. George, Peter Muttungal, Benny Jeyekumar Davidson, Nishi Priya
When The Therapist Is An Algorithm: Understanding Autism Spectrum Students’ Acceptance Of Generative Ai As A Mental Well-Being Tool Through The Technological Acceptance Model, Jossy P. George, Peter Muttungal, Benny Jeyekumar Davidson, Nishi Priya
Northeast Journal of Complex Systems (NEJCS)
This study examines the psychological and technological factors of the acceptance and emotional well-being of 349 college students with autism who use generative artificial intelligence tools as sources of psychological and emotional support. Grounded on the model of Technology Acceptance Model (TAM), the research studies relationships among perceived empathy, perceived usefulness, ease of use, emotional trust, continuance intention, and overall well-being. Structural equation modelling found that the perceived empathy was a significant predictor of ease of use and usefulness, while emotional trust and continuance intention proved to be significant predictors of emotional well-being. To reinforce these results, predictive modelling performed …
The Efficacy Of Dialectical Behavior Therapy For Anorexia Nervosa In Adolescent Females: A Literature Review, Tyler L. Brink
The Efficacy Of Dialectical Behavior Therapy For Anorexia Nervosa In Adolescent Females: A Literature Review, Tyler L. Brink
The Scholarship Without Borders Journal
Anorexia nervosa (AN) in adolescent females is associated with high mortality, significant relapse rates, and cognitive and emotional disturbances, suggesting that existing treatments may not sufficiently address core maintaining mechanisms. This literature review synthesizes current research examining the efficacy of Dialectical Behavior Therapy (DBT) and Radically Open Dialectical Behavior Therapy (RO-DBT) for adolescent females with AN, with emphasis on neurobiological vulnerability, emotional dysregulation, and maladaptive overcontrol. Neuroimaging research indicates reductions in cortical thickness and gray matter in regions associated with self-referential processing and emotional regulation, while emerging evidence suggests structural plasticity following mindfulness-based interventions. Behavioral studies demonstrate that emotional dysregulation …
First, Do No Harm: Reassessing Systemic Corticosteroid Premedication In Lnfliximab Treatment For Hidradenitis Suppurativa, Ada Delatte Md, Kourtney Autin Phd
First, Do No Harm: Reassessing Systemic Corticosteroid Premedication In Lnfliximab Treatment For Hidradenitis Suppurativa, Ada Delatte Md, Kourtney Autin Phd
Quality Improvement & Patient Safety Forum
No abstract provided.
Christianity’S Champion In The Early United States: An Analyzation Of Benjamin Rush’S Theological Beliefs And Their Impact On The Ideals For Which He Advocated, Micah Velarde
Bound Away: The Liberty Journal of History
Benjamin Rush, a signer of the Declaration of Independence and champion of the fusion of evangelical Christianity in America’s founding. Though somewhat unknown to most, he helped profoundly shape the formation of the United States of America in a variety of ways. His life was greatly influenced by his Christian beliefs and upbringing, having grown up in a devoutly God-fearing family. During his adolescent and young adult years, particularly his time spent studying at Princeton, his biblical worldview was greatly shaped and began to take hold of his life’s work. He subscribed to several ideals and dreams of independence. Through …
A Roller Coaster Ride With America’S Jefferson, Andrae Henderson
A Roller Coaster Ride With America’S Jefferson, Andrae Henderson
Bound Away: The Liberty Journal of History
History’s pedestal stands as tall as mankind can imagine and the fall from such heights creates in us the adrenaline of the fall, the pain of impact, and worst of all the insecurities of an unsure footing in the world. According to some historians, few have fallen harder than Thomas Jefferson. Annette Gordon-Reed and Peter S. Onuf, two significant modern historians partnered to write, “There has been a reaction to these earlier portraits of Jefferson, and the pendulum appears to have swung all the way in the opposite direction. ‘Jefferson the God’ has given way to ‘Jefferson the Devil’.” Historiographical …
Patents And Technology Evolution: Altering Innovations And Innovators Via Patent Influences, Richard Gruner
Patents And Technology Evolution: Altering Innovations And Innovators Via Patent Influences, Richard Gruner
Journal of Intellectual Property Law
Technologies improve primarily through evolutionary change not rational optimization. New technologies emerge as attempts to solve practical problems, the technologies are tested in marketplaces to determine if they are superior in cost and function to alternatives, and those that fare well in the testing gain widespread adoption. Widely adopted technologies, and their problems, form the basis for the next round of technology improvements and evolution. Through these steps, evolutionary processes lacking rational direction can generate changing technologies matched to the desires and problems of present society.
As they operate to advance diverse technologies, evolutionary processes governing technology change are subject …
The Expanding Patent Document: Fewer Claims, More Words, And The Drivers Of Growth, Dennis D. Crouch
The Expanding Patent Document: Fewer Claims, More Words, And The Drivers Of Growth, Dennis D. Crouch
Journal of Intellectual Property Law
Patent specifications have nearly quadrupled in length over the past four decades, rising from approximately 3,500 words in the early 1980s to over 13,000 words by 2025. At the same time, the average number of claims per patent has declined since peaking in 2005. Using the population of 7.6 million published patent applications from 2005 through early 2025, this Article advances a supply-side explanation for the persistent growth in specification length. The divergence between expanding specifications and contracting claims reflects a structural asymmetry in the USPTO fee schedule: excess claim fees impose a per-unit cost that visibly constrains claim counts …
Fate Of Nitrogen Applied To Grassland In Animal Wastes, M Sherwood
Fate Of Nitrogen Applied To Grassland In Animal Wastes, M Sherwood
IGC Proceedings (1977-2023)
The experiment was designed to determine the effects of land spreading of animal manures on the nutrient content of surface runoff water and infiltrating soil water. This report deals only with nitrogen (N) and attempts to quantify the losses through runoff, leaching, and volatilization of ammonia (NH3) as well as N uptake in the grass over a 3-year period. Experimental plots sited on grassland, on two soil types (a moderately drained loam and an impermeable gley), were equipped to collect surface runoff water. Ceramic probes were installed in each plot at 15-, 30-, 60-, and 100-cm depths to extract infiltrating …
Annual Losses Of Ammonia From A Grazed Pasture Fertilized With Urea, V R. Catchpoole, L A. Harper, R J.K Keyers
Annual Losses Of Ammonia From A Grazed Pasture Fertilized With Urea, V R. Catchpoole, L A. Harper, R J.K Keyers
IGC Proceedings (1977-2023)
Nitrogen-balance studies have shown losses of applied nitrogen (N) from grazed pastures in southeastern Queensland. Losses as high as 80% have been observed from urea N broadcast at 376 kg N/ha/yr over 8 years on a Setaria sp1uu:elata cv. Nandi pasture. Management techniques aimed at reducing this loss and thereby increasing the efficiency of use of N by pastures cannot be devised until the pathways of loss are known. The objective of this research was to estimate the annual ammonia (NH3) loss by convective transport from a urea-fertilized pasture at Samford Pasture Research Station in southeastern Queensland. Urea was broadcast …
Nitrogen Losses From Urine-Affected Areas Of A New Zealand Pasture, Under Contrasting Seasonal Conditions, P R. Ball, D R. Keeney
Nitrogen Losses From Urine-Affected Areas Of A New Zealand Pasture, Under Contrasting Seasonal Conditions, P R. Ball, D R. Keeney
IGC Proceedings (1977-2023)
Grazing ruminants aggregate large quantities of forage nitrogen (N) into urine patches. Pasture plots treated with urine N were studied to assess its fate under contrasting seasonal conditions: cool-moist (representing winter-spring); warm-moist (late spring-early summer), and warm-dry (late summer-autumn). A permanent ryegrass (Lolium perenne L.)-white clover (Trifolium repens L.) sward on free-draining alluvial soil was studied. 'freatments were replicated in randomized blocks. Urine N was applied at 30 or 60 g N/m2• Relevant measurements were then continued until treatment differences disappeared. Apparent N balances for urine treatments were compiled. Fixation by white clover was always greatly reduced in …
Effects Of Grazing Management On Seasonal Variation In Nitrogen Fixation, J L. Brock, J H. Hoglund, R H. Fletcher
Effects Of Grazing Management On Seasonal Variation In Nitrogen Fixation, J L. Brock, J H. Hoglund, R H. Fletcher
IGC Proceedings (1977-2023)
Using the acetylene reduction assay, field studies in recent years have investigated the variation in N fixation in grazed systems, and some of the principles involved in the interaction with available soil N have been described. This experiment extends this work to include the effect of grazing management on the factors influencing N fixation. Two self-contained sheep-grazed units, one a 10-paddock rotationally grazed system and the other set stocked, were established on a high-fertility ryegrass-white clover pasture, with a basic stocking rate of 22 sheep/ha. Over the 1975-1978 period, both units were monitored for pasture growth, N fixation, and associated …
Symbiotic Nitrogen Fixation Of Alfalfa, Birdsfoot Trefoil, And Red Clover, G H. Heichel, C P. Vance, D K. Barnes
Symbiotic Nitrogen Fixation Of Alfalfa, Birdsfoot Trefoil, And Red Clover, G H. Heichel, C P. Vance, D K. Barnes
IGC Proceedings (1977-2023)
Forage legumes such as alfalfa (Medicago sativa L.), birdsfoot trefoil (Lotus comiculatus L.), and red clover (Trifolium pratense L.), grown in crop rotations, can provide an inexpensive source of nitrogen (N) to succeeding crops. Few quantitative measurements of seasonal patterns of N fixation in managed communities of perennial forage legumes have been undertaken, chiefly because of the lack of satisfactory methods. Therefore, there is little knowledge of how N fixation varies with crop development, yielding ability, and weather patterns. Quantitative measurements of N fixation are important in choosing the appropriate legume for use in a crop rotation and for …
Photosynthate Supply And Nitrogen Fixation In Forage Legumes, P M. Murphy
Photosynthate Supply And Nitrogen Fixation In Forage Legumes, P M. Murphy
IGC Proceedings (1977-2023)
Photosynthate supply is known to limit nitrogen fixation in legumes, and the resulting shortfall in energy supply necessary for maximum crop production may be aggravated by the energy-wasteful process of hydrogen (H2) evolution by the legume N2 fixing system. There is less information available on these aspects of the nitrogen-fixing process in forage legumes, such as white clover (Trifolium repens). The objectives of the present work were to determine how N2(C2H2) fixation and H2 production are influenced by carbohydrate supply in forage legumes.
Plants were grown under controlled environmental conditions, and nodule energy supply was varied by adjusting …