scholarly journals Use of Ground Miscanthus Straw in Container Nursery Substrates

2011 ◽  
Vol 29 (3) ◽  
pp. 114-118 ◽  
Author(s):  
James E. Altland ◽  
James C. Locke
Keyword(s):  
United States ◽  
Management Practices ◽  
Dry Weight ◽  
The United States ◽  
Primary Component ◽  
Pine Bark ◽  
Growth Reduction ◽  
Shoot Dry Weight ◽  
Air Space ◽  
Foliar Nutrient

Abstract Pine bark (PB) is the primary component in nursery substrates in the United States. Availability of pine bark is decreasing and price is increasing. The objective of this research was to determine if miscanthus straw (MS) can replace all or part of the pine bark fraction in nursery container substrates. Five substrates were created that contained 15% sphagnum peatmoss, 5% municipal solid waste compost, and the remaining 80% consisted of one of the five following PB:MS ratios: 0:80, 20:60, 40:40, 60:20, and 80:0. Luna Red hibiscus (Hibiscus moscheutos) were grown in each substrate and evaluated for eight weeks in a greenhouse. Ground MS increased air space and decreased container capacity and bulk density as its concentration in the substrate increased. Additions of MS did not affect hibiscus chlorophyll content, and had negligible effects on hibiscus foliar nutrient levels. Increasing levels of MS caused a decrease in plant shoot dry weight, although growth reduction was most pronounced with 80% MS. Ground MS has potential to be a suitable substrate for nursery growers, however, some changes to management practices will be necessary.

scholarly journals Arcillite: Effect on Chemical and Physical Properties of Pine Bark Substrate and Plant Growth

1992 ◽  
Vol 10 (2) ◽  
pp. 63-69 ◽  
Author(s):  
Stuart L. Warren ◽  
Ted E. Bilderback
Keyword(s):  
Plant Growth ◽  
Chemical Properties ◽  
Total Porosity ◽  
Dry Weight ◽  
Pine Bark ◽  
Irrigation Frequency ◽  
Shoot Dry Weight ◽  
Air Space ◽  
Physical And Chemical ◽  
And Chemical Properties

Abstract The objective of this study was to determine the effect of arcillite, a calcined montmorillonite and illite clay, on the physical and chemical properties of a pine bark growth substrate and plant growth. To accomplish this, Cotoneaster dammeri ‘Skogholm’ and Rhododendron sp. ‘Sunglow’ were potted into pine bark substrate amended with 0, 27, 54, 67 or 81 kg/m3 (0, 45, 90, 112 or 136 lbs/yd3) arcillite. Plants were irrigated every l, 2, or 4 days. Container capacity, available water, and bulk density increased with increasing arcillite rate. Air space decreased with increasing arcillite rate. Total porosity and unavailable water were not affected by arcillite. Substrate NH4, NO3, P, K, Ca, and Mg concentrations increased with decreasing irrigation frequency. Substrate NH4, P, and K concentrations increased with increasing arcillite rate suggesting that arcillite improved retention within the container substrate. Azalea ‘Sunglow’ shoot dry weight decreased linearly with decreasing irrigation frequency and increased curvilinearly with increasing arcillite with maximum dry weight occurring at 67 kg/m3 (l12 lbs/yd2). Cotoneaster ‘Skogholm’ shoot dry weight increased linearly with increasing arcillite rate at 2 and 4 day irrigations and curvilinearly at 1 day irrigation with maximum weight at 67 kg/m3 (112 lbs/yd2).

Risk Assessment and Implications of Common Crupina Rust Disease for Biological Control

2016 ◽  
Vol 9 (1) ◽  
pp. 33-40
Author(s):  
William L. Bruckart ◽  
Farivar M. Eskandari ◽  
Dana K. Berner
Keyword(s):  
United States ◽  
Risk Assessment ◽  
Biological Control ◽  
Dry Weight ◽  
The United States ◽  
Rust Disease ◽  
Shoot Dry Weight ◽  
Nontarget Species ◽  
Weight Data ◽  
Greenhouse Tests

AbstractEvaluation ofPuccinia crupinae, the causal agent of a rust disease on common crupina (Crupina vulgaris), for biological control is described. Susceptibility of accessions of common crupina that represent both varieties of the target from the five populations in the United States indicate that the disease has potential to control common crupina, but differences were noted between accessions on the basis of pustule count, yield (i.e., number and weight of achenes per plant), and shoot dry weight data after multiple inoculations. One accession from Modoc, CA, was not affected in greenhouse tests and would likely not be affected in the field if a permit to releaseP. crupinaewere granted. None of the nontarget species of 26 taxa from the tribes Cardueae and Cichoriae were symptomatic, so the pathogen is likely safe to use in North America.

scholarly journals Growth and Nutrient Status of Containerized Shrubs Grown in Composts Containing Waxed Corrugated Cardboard and Other Organic Wastes

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 894F-895
Author(s):  
D.A. Raymond ◽  
C. Chong ◽  
R.P. Voroney
Keyword(s):  
Poultry Manure ◽  
Dry Weight ◽  
Nutrient Status ◽  
Pine Bark ◽  
Nutrient Deficiencies ◽  
Shoot Dry Weight ◽  
Normal Ranges ◽  
Foliar Nutrient ◽  
Physocarpus Opulifolius ◽  
Corrugated Cardboard

Four containerized deciduous ornamental shrubs, [silverleaf dogwood (Cornus alba L. `Argenteo-marginata'), red-osier dogwood (Comus sericea L.), ninebark (Physocarpus opulifolius L.), and deutzia (Deutzia gracilis L.)] were grown in 12 composts containing (by volume) spent mushroom substrate (50%), waxed corrugated cardboard (WCC; 0%, 25%, or 50%), and/or pulverized wood wastes (PWW; 50%, 25%, and 0%). Supplemental N as poultry manure and/or soybean wastes was added to some composts. Growth (shoot dry weight, average of two seasons) of all species was better or similar in most composts compared with two controls (100% pine bark and 80% pine bark: 15% peat: 5% sand). Deutzia grew best in 50% WCC composts and other species in 25% WCC composts. Porosity characteristics of the composts were acceptable for container growing (50% to 60% total; 25% to 30% aeration). Total soluble salts were initially high and potentially phytotoxic, particularly in the 50% WCC composts but were quickly leached and resulted in no injury to plants. There were no symptoms of nutrient deficiencies or toxicities in any of the species tested. Foliar nutrient (N, I P, K, Ca, Mg, Mn, Zn, and Fe) concentrations in all species were within normal ranges, except for low Mn and Fe concentrations in red-osier dogwood during the second season.

scholarly journals First Report of Fusarium proliferatum Causing Root Rot on Soybean (Glycine max) in the United States

Plant Disease ◽  
2011 ◽  
Vol 95 (10) ◽  
pp. 1316-1316 ◽  
Author(s):  
M. M. Díaz Arias ◽  
G. P. Munkvold ◽  
L. F. Leandro
Keyword(s):  
United States ◽  
Root Rot ◽  
Morphological Characteristics ◽  
Dry Weight ◽  
The United States ◽  
Growth Stages ◽  
Species Identity ◽  
First Report ◽  
Soybean Roots ◽  
Soybean Diseases

Fusarium spp. are widespread soilborne pathogens that cause important soybean diseases such as damping-off, root rot, Fusarium wilt, and sudden death syndrome. At least 12 species of Fusarium, including F. proliferatum, have been associated with soybean roots, but their relative aggressiveness as root rot pathogens is not known and pathogenicity has not been established for all reported species (2). In collaboration with 12 Iowa State University extension specialists, soybean roots were arbitrarily sampled from three fields in each of 98 Iowa counties from 2007 to 2009. Ten plants were collected from each field at V2-V3 and R3-R4 growth stages (2). Typical symptoms of Fusarium root rot (2) were observed. Symptomatic and asymptomatic root pieces were superficially sterilized in 0.5% NaOCl for 2 min, rinsed three times in sterile distilled water, and placed onto a Fusarium selective medium. Fusarium colonies were transferred to carnation leaf agar (CLA) and potato dextrose agar and later identified to species based on cultural and morphological characteristics. Of 1,230 Fusarium isolates identified, 50 were recognized as F. proliferatum based on morphological characteristics (3). F. proliferatum isolates produced abundant, aerial, white mycelium and a violet-to-dark purple pigmentation characteristic of Fusarium section Liseola. On CLA, microconidia were abundant, single celled, oval, and in chains on monophialides and polyphialides (3). Species identity was confirmed for two isolates by sequencing of the elongation factor (EF1-α) gene using the ef1 and ef2 primers (1). Identities of the resulting sequences (~680 bp) were confirmed by BLAST analysis and the FUSARIUM-ID database. Analysis resulted in a 99% match for five accessions of F. proliferatum (e.g., FD01389 and FD01858). To complete Koch's postulates, four F. proliferatum isolates were tested for pathogenicity on soybean in a greenhouse. Soybean seeds of cv. AG2306 were planted in cones (150 ml) in autoclaved soil infested with each isolate; Fusarium inoculum was applied by mixing an infested cornmeal/sand mix with soil prior to planting (4). Noninoculated control plants were grown in autoclaved soil amended with a sterile cornmeal/sand mix. Soil temperature was maintained at 18 ± 1°C by placing cones in water baths. The experiment was a completely randomized design with five replicates (single plant in a cone) per isolate and was repeated three times. Root rot severity (visually scored on a percentage scale), shoot dry weight, and root dry weight were assessed at the V3 soybean growth stage. All F. proliferatum isolates tested were pathogenic. Plants inoculated with these isolates were significantly different from the control plants in root rot severity (P = 0.001) and shoot (P = 0.023) and root (P = 0.013) dry weight. Infected plants showed dark brown lesions in the root system as well as decay of the entire taproot. F. proliferatum was reisolated from symptomatic root tissue of infected plants but not from similar tissues of control plants. To our knowledge, this is the first report of F. proliferatum causing root rot on soybean in the United States. References: (1) D. M. Geiser et al. Eur. J. Plant Pathol. 110:473, 2004. (2) G. L. Hartman et al. Compendium of Soybean Diseases. 4th ed. The American Phytopathologic Society, St. Paul, MN, 1999. (3) J. F. Leslie and B. A. Summerell. The Fusarium Laboratory Manual. Blackwell Publishing, Oxford, UK, 2006. (4) G. P. Munkvold and J. K. O'Mara. Plant Dis. 86:143, 2002.

The making of an uneven shore: How coastal management and housing policies shaped racial inequality in asbury park NJ

2022 ◽  
pp. 251484862110698
Author(s):  
David C. Eisenhauer
Keyword(s):  
United States ◽  
New Jersey ◽  
Political Ecology ◽  
Coastal Management ◽  
Racial Inequality ◽  
Management Practices ◽  
The United States ◽  
Coastal Development ◽  
Housing Policies ◽  
Housing Segregation

Recent work in urban geography and political ecology has explored the roots of housing segregation in the United States within governmental polices and racial prejudice within the real estate sector. Additional research has demonstrated how coastal management practices has largely benefited wealthy, white communities. In this paper, I bring together insights from these two strands of research to demonstrate how both coastal management and governmental housing policies combined to shape racial inequalities within and around Asbury Park, New Jersey. By focusing on the period between 1945 and 1970, I show how local, state, and federal actors repeatedly prioritized improving and protecting the beachfront areas of the northern New Jersey shore while promising to eventually address the housing and economic needs of the predominately Black ‘West Side’ neighbourhood of Asbury Park. This paper demonstrates that not only did governmental spending on coastal management largely benefit white suburban homeowners but also came at the expense of promised spending within Black neighbourhoods. The case study has implications for other coastal regions in the United States in which housing segregation persists. As climate change and sea level rise unfold, the history of racial discrimination in coastal development raises important considerations for efforts to address emerging hazards and risks.

Planning for and Managing iPads in a PreK-4th Grade Independent, Co-Educational Elementary School

2015 ◽  
pp. 156-174
Author(s):  
Natalie B. Milman ◽  
Angela Carlson-Bancroft ◽  
Amy E. Vanden Boogart
Keyword(s):  
United States ◽  
Elementary School ◽  
Classroom Management ◽  
Management Practices ◽  
Planning Process ◽  
The United States ◽  
First Year ◽  
Management Techniques ◽  
Effective Integration

This chapter chronicles the planning and classroom management practices of the first-year implementation of a 1:1 iPad initiative in a suburban, co-educational, independent, PreK-4th grade elementary school in the United States that was examined through a mixed methods QUAL ? QUAN case study. Findings demonstrate that the school's administrators and teachers engaged in pre-planning activities prior to the implementation of the iPad initiative, teachers viewed the iPads as tools in the planning process (iPads were not perceived as the content or subject to be taught/learned), and teachers flexibly employed different classroom management techniques and rules as they learned to integrate iPads in their classrooms. Additionally, the findings reveal the need for continuous formal and informal professional development that offers teachers multiple and varied opportunities to share their planning and classroom management practices, build their confidence and expertise in effective integration of iPads, and learn with and from one another.

Planning for and Managing iPads in a PreK-4th Grade Independent, Co-Educational Elementary School

2016 ◽  
pp. 683-701
Author(s):  
Natalie B. Milman ◽  
Angela Carlson-Bancroft ◽  
Amy E. Vanden Boogart
Keyword(s):  
United States ◽  
Elementary School ◽  
Classroom Management ◽  
Management Practices ◽  
Planning Process ◽  
The United States ◽  
First Year ◽  
Management Techniques ◽  
Effective Integration

This chapter chronicles the planning and classroom management practices of the first-year implementation of a 1:1 iPad initiative in a suburban, co-educational, independent, PreK-4th grade elementary school in the United States that was examined through a mixed methods QUAL ? QUAN case study. Findings demonstrate that the school's administrators and teachers engaged in pre-planning activities prior to the implementation of the iPad initiative, teachers viewed the iPads as tools in the planning process (iPads were not perceived as the content or subject to be taught/learned), and teachers flexibly employed different classroom management techniques and rules as they learned to integrate iPads in their classrooms. Additionally, the findings reveal the need for continuous formal and informal professional development that offers teachers multiple and varied opportunities to share their planning and classroom management practices, build their confidence and expertise in effective integration of iPads, and learn with and from one another.

The Opioid Crisis

2020 ◽  
Author(s):  
M. Aryana Bryan ◽  
Valerie Hruschak ◽  
Cory Dennis ◽  
Daniel Rosen ◽  
Gerald Cochran
Keyword(s):  
United States ◽  
Social Work ◽  
Management Practices ◽  
Critical Role ◽  
Work Practice ◽  
The United States ◽  
Social Work Practice ◽  
Opioid Use Disorder ◽  
Prescription Opioid ◽  
Opioid Use

Opioid-related deaths by overdoses quadrupled in the United States from the years 1999 to 2015. This rise in mortality predominately occurred in the wake of historic changes in pain management practices and aggressive marketing of opioid medications such as oxycontin. Prescription opioid misuse and subsequent addiction spilled over to heroin and fentanyl for many. This drug epidemic differed from others in its impact among non-Hispanic whites, leading to drastic changes in how the United States views addiction and chooses to respond. This article offers an overview of opioid use disorder (OUD), its treatment and its relationship with pain. It also discusses special populations affected and provides insight into future directions for research and social work practice surrounding opioid management in the United States. Because of the profession’s emphasis on the person and social environment as well as its focus on vulnerable and oppressed populations, social work plays a critical role in addressing the crisis.

scholarly journals 302 Current pain mitigation practices in beef and dairy cattle in the United States

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 2-2
Author(s):  
Elizabeth C Johnstone ◽  
Johann Coetzee ◽  
Lily Edwards-Callaway ◽  
Pablo Pinedo
Keyword(s):  
United States ◽  
Pain Management ◽  
Management Practices ◽  
The United States ◽  
Management Options ◽  
Adult Cattle ◽  
Analgesic Drugs ◽  
On Line ◽  
Analgesic Use ◽  
Pain Mitigation

Abstract The lack of FDA-approved analgesic drugs for use in cattle in the United States offers limited pain management options to cattle veterinarians and producers. An on-line survey was developed to investigate current use of pain mitigation by cattle veterinarians and producers. The survey was distributed electronically to multiple listservs in Summer 2018 (BEEF Magazine, American Association of Bovine Practitioners, National Milk Producers Federation Farmers Assuring Responsible Management evaluators, Dairy Moms and Dairy Girls Facebook groups; n = 46,577). A total of 1,187 (2.5%) surveys were received; 41.9% of respondents identified as producers, 47.9% as veterinarians, and 10.2% as both. Multivariate logistic regression was used for analysis. Veterinarians [OR (95% CI) = 10.2 (7.21–14.4)] and both veterinarians and producers [OR (95% CI) = 3.30 (2.02–5.39)] had significantly greater odds of using analgesia than producers in all cattle ages. Summary statistics indicate that analgesic use increased with cattle age; 57.6% of respondents used pain management in calves < 2 months of age, while 71.6% of respondents used pain management in adult cattle (>12 months of age). Respondents agreed that “cattle benefit from receiving analgesic drugs” (76.6%) and that “US/USDA/FDA regulations limit my ability to use analgesic drugs in cattle” (64.01%). Fifty-eight percent of respondents indicated their use of pain management had increased in the last 10 years. Data identify impediments to improving pain management practices in cattle. Results indicate the need for education and communication between veterinarians and producers on the necessity of pain management.

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