scholarly journals Moving Toward Sustainability with Alternative Containers for Greenhouse and Nursery Crop Production: A Review and Research Update

2015 ◽  
Vol 25 (1) ◽  
pp. 8-16 ◽  
Author(s):  
Susmitha Nambuthiri ◽  
Amy Fulcher ◽  
Andrew K. Koeser ◽  
Robert Geneve ◽  
Genhua Niu
Keyword(s):  
Environmental Factors ◽  
Crop Production ◽  
Production Efficiency ◽  
Future Research ◽  
Research Needs ◽  
Research Gaps ◽  
Greenhouse Production ◽  
Parent Materials ◽  
Alternative Materials ◽  
Production Practices

Market researchers have found that nursery and greenhouse production practices that reduce plastic use can increase consumer interest. However, there are broader crop performance, production efficiency, and environmental factors that must be considered before adopting containers made with alternative materials. This review highlights current commercially available alternative containers and parent materials. In addition, findings from recent and ongoing nursery, greenhouse, and landscape trials are synthesized, identifying common themes, inconsistencies, research gaps, and future research needs.

scholarly journals Climate Variability, Social and Environmental Factors, and Ross River Virus Transmission: Research Development and Future Research Needs

2008 ◽  
Vol 116 (12) ◽  
pp. 1591-1597 ◽  
Author(s):  
Shilu Tong ◽  
Pat Dale ◽  
Neville Nicholls ◽  
John S. Mackenzie ◽  
Rodney Wolff ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Climate Variability ◽  
Virus Transmission ◽  
Future Research ◽  
Ross River Virus ◽  
Research Needs ◽  
Research Development

scholarly journals Survey of the Research Needs of the Potential Organic Ornamental Bedding Plant Industry in Maine

2009 ◽  
Vol 19 (4) ◽  
pp. 743-747 ◽  
Author(s):  
Stephanie E. Burnett ◽  
Lois Berg Stack
Keyword(s):  
Ornamental Plants ◽  
Organic Production ◽  
Future Research ◽  
Research Needs ◽  
Greenhouse Production ◽  
Insect Management ◽  
Bedding Plant ◽  
Production Techniques ◽  
Greenhouse Growers ◽  
Ph Management

Organic and conventional greenhouse growers in Maine were surveyed to determine the research needs of growers who may produce organic ornamental bedding plants. Organic growers were also asked to identify their greatest motivator to determine whether they feel that there is a greater market for organically grown ornamental plants. The greatest percentage (75%) of organic growers indicated that they choose to grow plants organically because “it's the right thing to do.” The second greatest percentage (36%) of organic growers choose organic production techniques for ornamental plants because they grow food crops organically and consider it convenient to use only one production technique. A relatively small number of organic growers (7%) considered the market for organic ornamental plants to be a strong motivator for growing organically. Organic growers were asked to select production issues that pose the greatest challenge for them from a list of common production problems. They considered insect and disease management and organic fertility, substrate, and pH management to be their greatest problems. Conventional growers primarily avoid organic production techniques because they consider organic fertilization or organic insect management to be too big of a challenge. Because organic and conventional growers consider insect and fertility or substrate management to be challenges facing organic growers, these topics should be top priorities for future research on organic greenhouse production.

Research Needs in Weed Science

1994 ◽  
Vol 8 (2) ◽  
pp. 408-409 ◽  
Author(s):  
F. Dan Hess
Keyword(s):  
Weed Management ◽  
Crop Production ◽  
Science Research ◽  
Future Research ◽  
Research Needs ◽  
Weed Science ◽  
Research Committee ◽  
Field Environment ◽  
Primary Basis ◽  
Science Symposium

During 1992, the Research Committee of the Weed Science Society of America (WSSA) prepared a list of research needs for the discipline of weed science. The identified needs fit well with the recommendations of the Future Directions for Weed Science Symposium held in Washington D.C. on April 15, 1993, thus are provided as a supplement to the Symposium publication. The Research Committee concluded weed science research should focus on increasing knowledge related to the economic and biological impact of weeds across a wide variety of environments (crop production, forestry, right-of-way and aquatic). An increased understanding of the biology, ecology and genetics of weeds is needed to optimize their management. Research on control of weeds with biological agents and natural products should be conducted with emphasis on optimizing performance in the field environment. The development of weed populations resistant to chemical and biological control agents should be studied so the occurrence of such populations can be minimized. Because herbicides will continue to be the primary basis of weed management for the foreseeable future, research is needed to optimize herbicide application technology and to minimize their impact on the environment, particularly related to surface and groundwater contamination. Finally, new and reliable methods to detect herbicide residues in water, soil and vegetation are needed.

scholarly journals Phosphate and Potassium Retention and Release during Chrysanthemum Production from Precharged Materials: I. Alumina

2000 ◽  
Vol 125 (6) ◽  
pp. 748-756 ◽  
Author(s):  
Kimberly A. Williams ◽  
Paul V. Nelson ◽  
Dean Hesterberg
Keyword(s):  
Crop Production ◽  
Sole Source ◽  
Production Cycle ◽  
Particle Sizes ◽  
Greenhouse Production ◽  
Cycle Growth ◽  
Root Media ◽  
Current Production ◽  
Production Practices ◽  
Potassium Retention

Soilless root media have little capacity to retain PO4 or K, and this contributes to leaching of these nutrients during greenhouse crop production. The objective of this research was to evaluate the suitability of precharged alumina as a sole source of PO4 and K during greenhouse production of potted chrysanthemum [Dendranthema ×grandiflora Kitam. (syn. Chrysanthemum ×morifolium Ramat.)]. Phosphate and K adsorption and desorption curves were created at 25 °C for two particle sizes (0.5 to 0.9 and 1.8 to 3.2 mm) of alumina (Al2O3; acid-washed and unwashed), and a medium of 7 peat: 3 perlite (v/v) using solutions of KH2 PO4 (P at 0 to 20,000 mg.L-1). Based on these curves, 1.8 to 3.2 mm, unwashed alumina was selected for use in the studies. Precharged alumina was tested in two greenhouse studies at 10% and 30% (v/v) of a peat-perlite medium used to produce `Sunny Mandalay' chrysanthemum. Phosphate, K, and pH were determined on unaltered root medium solutions collected throughout the 10-week cropping cycle, and foliar analyses were conducted on tissue collected at the middle and end of the cycle. Potassium release was adequate to meet chrysanthemum demand for 4 weeks, but inadequate for the remainder of the production cycle. Precharged alumina retained and released PO4 at sustained concentrations (P at <2 mg·L-1) over the course of a 10-week cropping cycle. Growth of plants receiving PO4 from precharged alumina was not significantly different from the controls receiving liquid fertilizer (P at 46.5 mg·L-1) at each watering when precharged alumina comprised 30% of the medium, and only slightly less when precharged alumina comprised 10% of the medium. A phosphorus budget showed that while 36% (103 mg) of the applied PO4-P was lost in the leachate of the controls, only 0.1% (2 mg) was lost from plants produced with alumina-P. This research demonstrates that in a soilless medium with physical properties similar to standard commercial mixes, low but adequate PO4 concentrations can be achieved and sustained using current production practices.

scholarly journals Operating Room Turnover Time: Definitions and Future Research Needs

2019 ◽  
Vol 63 (1) ◽  
pp. 1927-1930
Author(s):  
Gianna Schock ◽  
Beth Blickensderfer
Keyword(s):  
Human Factors ◽  
Operating Room ◽  
Turnover Time ◽  
Future Research ◽  
Research Needs ◽  
Research Gaps ◽  
Research Topics ◽  
Parallel Processes ◽  
Healthcare Efficiency ◽  
Human Factors Research

One aspect of healthcare efficiency is operating room (OR) turnover time. OR turnover time is an area of high interest to hospital administration, however, limited Human Factors research exists on turnover time. The current paper describes OR turnover time and describes variables involved (e.g., tasks, procedures, personnel, and others). Next, research topics related to OR turnover time are described. This includes measuring turnover time, parallel processes, workflow layout, teamwork, and several other areas. Research gaps in these areas are discussed.

scholarly journals Climate Change Impacts on Tropical Reptiles: Likely Effects and Future Research Needs Based on Sri Lankan Perspectives

2021 ◽  
Vol 9 ◽  
Author(s):  
Buddhi Dayananda ◽  
Simeon Bezeng Bezeng ◽  
Suranjan Karunarathna ◽  
Ross A. Jeffree
Keyword(s):  
Climate Change ◽  
Climate Change Impacts ◽  
Future Research ◽  
Specific Reference ◽  
Sri Lankan ◽  
Global Information ◽  
International Literature ◽  
Research Needs ◽  
Research Gaps ◽  
Tropical Countries

The tropical island nation of Sri Lanka has a rich terrestrial and aquatic reptilian fauna. However, like most other tropical countries, the threat of climate change to its reptile diversity has not been adequately addressed, in order to manage and mitigate the extinction threats that climate change poses. To address this shortfall, a review of the international literature regarding climate change impacts on reptiles was undertaken with specific reference to national requirements, focusing on predicted changes in air temperature, rainfall, water temperature, and sea level. This global information base was then used to specify a national program of research and environmental management for tropical countries, which is urgently needed to address the shortcomings in policy-relevant data, its availability and access so that the risks of extinction to reptiles can be clarified and mitigated. Specifically, after highlighting how climate change affects the various eco-physiological features of reptiles, we propose research gaps and various recommendations to address them. It is envisaged that these assessments will also be relevant to the conservation of reptilian biodiversity in other countries with tropical and subtropical climatic regimes

Understanding Limited Use of Amplification in Infants and Children Who Are Hard of Hearing

2015 ◽  
Vol 25 (1) ◽  
pp. 15-23 ◽  
Author(s):  
Ryan W. McCreery ◽  
Elizabeth A. Walker ◽  
Meredith Spratford
Keyword(s):  
Hard Of Hearing ◽  
Hearing Aid ◽  
Management Strategies ◽  
Infants And Children ◽  
Future Research ◽  
Research Needs ◽  
Case Examples ◽  
Hearing Aid Use ◽  
Wide Range ◽  
In Infants And Children

The effectiveness of amplification for infants and children can be mediated by how much the child uses the device. Existing research suggests that establishing hearing aid use can be challenging. A wide range of factors can influence hearing aid use in children, including the child's age, degree of hearing loss, and socioeconomic status. Audiological interventions, including using validated prescriptive approaches and verification, performing on-going training and orientation, and communicating with caregivers about hearing aid use can also increase hearing aid use by infants and children. Case examples are used to highlight the factors that influence hearing aid use. Potential management strategies and future research needs are also discussed.

Locus of Control, Safety Attitudes and Involvement in Hazardous Events in Indian Army Aviators

2013 ◽  
Vol 3 (1) ◽  
pp. 9-18 ◽  
Author(s):  
Catherine Joseph ◽  
Suhasini Reddy ◽  
Kanwal Kashore Sharma
Keyword(s):  
Locus Of Control ◽  
Future Research ◽  
Research Needs ◽  
Negative Attitudes ◽  
Human Errors ◽  
Safety Attitudes ◽  
Positive Correlation ◽  
Self Confidence

Locus of control (LOC), safety attitudes, and involvement in hazardous events were studied in 205 Indian Army aviators using a questionnaire-based method. A positive correlation was found between external LOC and involvement in hazardous events. Higher impulsivity and anxiety, and decreased self-confidence, safety orientation, and denial were associated with a greater number of hazardous events. Higher external LOC was associated with higher impulsivity, anxiety, and weather anxiety and with lower self-confidence, safety orientation, and denial. Internal LOC was associated with increased self-confidence, safety orientation, and denial. Hazardous events and self-confidence were higher in those involved in accidents than those not involved in accidents. Future research needs to address whether training can effectively modify LOC and negative attitudes, and whether this would cause a reduction in, and better management of, human errors.

Influence of environmental factors and production practices on the growth and productivity of pawpaw (Carica papayaL.) in south western Nigeria – A review

Fruits ◽  
2016 ◽  
Vol 71 (6) ◽  
pp. 341-361 ◽  
Author(s):  
Olusegun Olufemi Olubode ◽  
Olubukola Motunrayo Odeyemi ◽  
Isaac Oreoluwa Olatokunbo Aiyelaagbe
Keyword(s):  
Environmental Factors ◽  
Production Practices

Collaborative Remembering in Dementia: A Focus on Joint Activities

2018 ◽  
Author(s):  
Lars-Christer Hydén ◽  
Mattias Forsblad
Keyword(s):  
Everyday Life ◽  
Past Research ◽  
Research Field ◽  
Future Research ◽  
Research Needs ◽  
Joint Activities ◽  
Do So ◽  
Dementia Diseases

In this chapter we consider collaborative remembering and joint activates in everyday life in the case of people living with dementia. First, we review past research of practices that scaffolds the participation of persons with dementia in everyday chores under different stages of dementia diseases. We do so by suggesting three analytical types of scaffolding: when the scaffolding practices (i) frame the activity, (ii) guide actions, or (iii) are part of repair activities. Second, we review two aspects of collaborative remembering that are especially important in the case of dementia: training of scaffolding practices, and the sustaining and presentation of identities through collaborative storytelling. Finally, theoretical and methodological tendencies of the research field are summarized and future research needs are formulated.

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