scholarly journals An Introduction to Biochars and Their Uses in Agriculture

EDIS ◽  
2013 ◽  
Vol 2013 (8) ◽  
Author(s):  
Rao Mylavarapu ◽  
Vimala Nair ◽  
Kelly Morgan
Keyword(s):  
Black Carbon ◽  
Organic Materials ◽  
Agricultural Fields ◽  
General Description ◽  
Fact Sheet ◽  
Considerable Research ◽  
Potential Benefits ◽  
Technical Details ◽  
Negative Impacts ◽  
Soil And Water

Biochar, also known as black carbon, is a product derived from organic materials rich in carbon and is found in soils in very stable solid forms, often as deposits. In recent years, considerable research has focused on biochar, its nature, and its properties to explore its potential benefits and negative impacts, particularly for applying to agricultural fields as amendments. This publication provides a general description of biochar, as well as technical details, benefits, and disadvantages of biochar for agricultural and environmental uses. This 4-page fact sheet was written by Rao Mylavarapu, Vimala Nair, and Kelly Morgan, and published by the UF Department of Soil and Water Science, August 2013. http://edis.ifas.ufl.edu/ss585

Soil Sampling Procedures

EDIS ◽  
2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Davie Kadyampakeni ◽  
Kelly Morgan ◽  
Arnold Schumann ◽  
Rhuanito Ferrarezi ◽  
Jamie D Burrow
Keyword(s):  
Soil Sampling ◽  
Test Results ◽  
Fertilization Program ◽  
Fact Sheet ◽  
Standard Procedures ◽  
Sampling Procedures ◽  
Soil And Water

To achieve optimal grove nutrition, citrus growers must test grove soil before beginning any fertilization program. Standard procedures for sampling, preparing, and analyzing soil should be followed for meaningful interpretations of the test results and accurate recommendations. This new two-page fact sheet, published by the UF/IFAS Department of Soil and Water Sciences, provides illustrated soil sampling procedures and tables to aid in basic interpretation of lab results. Written by Davie Kadyampakeni, Kelly Morgan, Arnold Schumann, and Rhuanito S. Ferrarezi.https://edis.ifas.ufl.edu/ss667

scholarly journals Didymo and Its Polysaccharide Stalks: Beneficial to the Environment or Not?

2021 ◽  
Vol 2 (1) ◽  
pp. 69-79
Author(s):  
Hurmat Ejaz ◽  
Esther Somanader ◽  
Uday Dave ◽  
Hermann Ehrlich ◽  
M. Azizur Rahman
Keyword(s):  
Invasive Species ◽  
Structural Component ◽  
Negative Effects ◽  
Adhesive Properties ◽  
The Past ◽  
Positive Side ◽  
Potential Benefits ◽  
Negative Impacts ◽  
Bodies Of Water ◽  
Agricultural Setting

Didymosphenia geminata diatoms, or Didymo, was first found to be an invasive species that could have negative impacts on the environment due to the aggressive growth of its polysaccharide-based stalks. The stalks’ adhesive properties have prompted park officials to alert the general public to limit further spread and contamination of this algae to other bodies of water. Although the negative effects of Didymo have been studied in the past, recent studies have demonstrated a potential positive side to this alga. One of the potential benefits includes the structural component of the polysaccharide stalks. The origin of the polysaccharides within stalks remains unknown; however, they can be useful in a waste management and agricultural setting. The primary purpose of this study was to describe both the harmful and beneficial nature of Didymo. Important outcomes include findings related to its application in various fields such as medicine and technology. These polysaccharides can be isolated and studied closely to produce efficient solar power cells and batteries. Though they may be harmful while uncontained in nature, they appear to be very useful in the technological and medical advancement of our society.

scholarly journals The Effect of State Gratitude on Cognitive Flexibility: A Within-Subject Experimental Approach

2020 ◽  
Vol 10 (7) ◽  
pp. 413
Author(s):  
Andree Hartanto ◽  
Nadia C. H. Ong ◽  
Wee Qin Ng ◽  
Nadyanna M. Majeed
Keyword(s):  
Pilot Study ◽  
Cognitive Functioning ◽  
Cognitive Flexibility ◽  
Positive Emotion ◽  
Positive Emotions ◽  
Experimental Approach ◽  
Main Study ◽  
Considerable Research ◽  
Potential Benefits ◽  
The Relationship

Considerable research has examined the relationship between positive emotion and cognitive flexibility. Less is known, however, about the causal relationship between discrete positive emotions, specifically gratitude, and cognitive flexibility. Given that different positive emotions may dissimilarly affect cognitive functioning, we sought to examine the effect of state gratitude on cognitive flexibility. A pilot study with ninety-five participants was employed to ensure the effectiveness of our gratitude manipulation. One hundred and thirteen participants were recruited for the main study, which utilized a within-subject experimental approach. After the manipulation, participants completed a well-established task-switching paradigm, which was used to measure cognitive flexibility. Contrary to our hypotheses, we did not find any evidence that state gratitude may enhance cognitive flexibility. The current study identified some boundary conditions around the potential benefits of the experience of gratitude.

scholarly journals Separate and Combined Impacts of Land Cover and Climate Changes on Hydrological Responses of Dhidhessa River Basin, Ethiopia

2020 ◽  
Author(s):  
Gizachew Kabite ◽  
Misgana Muleta ◽  
Berhan Gessesse
Keyword(s):  
Climate Change ◽  
Land Cover ◽  
Groundwater Recharge ◽  
Land Cover Change ◽  
River Basin ◽  
Surface Runoff ◽  
Climate Changes ◽  
Negative Impacts ◽  
Hydrologic Responses ◽  
Soil And Water

Land cover and climate changes greatly influence hydrologic responses of a basin. However, the response vary from basin to basin depending on the nature and severity of the changes and basin characteristics. Moreover, the combined impacts of the changes affect hydrologic responses of a basin in an offsetting or synergistic manner. This study quantified the separate and combined impacts, and the relative contributions of land cover and climate changes on multiple hydrological regimes (i.e., surface runoff, streamflow, groundwater recharge evapotranspiration) for the Dhidhessa Subbasin. Land cover and climate change data were obtained from a recent study completed for the basin. Calibrated Soil and Water Analysis Tool (SWAT) was used to quantify the impacts. The result showed that SWAT model performed well for the Dhidhessa Subbasin in predicting the water balance components. Substantial land cover change as well as an increasing temperature and rainfall trends were reported in the river basin during the past three decades. In response to these changes, surface runoff, streamflow and actual evapotranspiration (AET) increased while groundwater recharge declined. Surface runoff was more sensitive to land cover than to climate changes whereas streamflow and AET were more sensitive to climate change than to land cover change. The combined impacts played offsetting effect on groundwater recharge and AET while inconsistent effects within study periods for other hydrologic responses. Overall, the predicted hydrologic responses will have negative impacts on agricultural production and water resources availability. Therefore, the implementation of integrated watershed management strategies such as soil and water conservation and afforestation could reverse the negative impacts.

scholarly journals Micronutrient Deficiencies in Citrus: Iron, Zinc, and Manganese

EDIS ◽  
1969 ◽  
Vol 2003 (2) ◽  
Author(s):  
Mongi Zekri ◽  
Thomas A. Obreza
Keyword(s):  
Cooperative Extension ◽  
Cooperative Extension Service ◽  
Extension Service ◽  
Science Department ◽  
Micronutrient Deficiencies ◽  
University Of Florida ◽  
Fact Sheet ◽  
Agricultural Sciences ◽  
Water Science ◽  
Soil And Water

This document is SL 204, a fact sheet of the Soil and Water Science Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. First printed: January 2003. SL 204/SS423: Micronutrient Deficiencies in Citrus: Iron, Zinc, and Manganese (ufl.edu)

scholarly journals Macronutrient Deficiencies in Citrus: Nitrogen, Phosphorus, and Potassium

EDIS ◽  
1969 ◽  
Vol 2003 (2) ◽  
Author(s):  
Mongi Zekri ◽  
Thomas A. Obreza
Keyword(s):  
Cooperative Extension ◽  
Cooperative Extension Service ◽  
Extension Service ◽  
Science Department ◽  
University Of Florida ◽  
Fact Sheet ◽  
Water Science ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus ◽  
Soil And Water

This document is SL 201, a fact sheet of the Soil and Water Science Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. First printed: January 2003. SL 201/SS420: Macronutrient Deficiencies in Citrus: Nitrogen, Phosphorus, and Potassium (ufl.edu)

scholarly journals Micronutrient Deficiencies in Citrus: Boron, Copper, and Molybdenum

EDIS ◽  
1969 ◽  
Vol 2003 (2) ◽  
Author(s):  
Mongi Zekri ◽  
Thomas A. Obreza
Keyword(s):  
Cooperative Extension ◽  
Cooperative Extension Service ◽  
Extension Service ◽  
Science Department ◽  
Micronutrient Deficiencies ◽  
University Of Florida ◽  
Fact Sheet ◽  
Agricultural Sciences ◽  
Water Science ◽  
Soil And Water

This document is SL 203, a fact sheet of the Soil and Water Science Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. First printed: January 2003. SL 203/SS422: Micronutrient Deficiencies in Citrus: Boron, Copper, and Molybdenum (ufl.edu)

Developing Ethical Web- and Mobile-Based Technologies for Dementia

2019 ◽  
pp. 240-264
Author(s):  
Julie M. Robillard ◽  
Tanya E. Feng
Keyword(s):  
Health Information ◽  
Cognitive Engagement ◽  
Diagnostic Tools ◽  
Ethical Challenges ◽  
Dementia Prevention ◽  
Potential Benefits ◽  
Cross Platform ◽  
Computer Based ◽  
Negative Impacts ◽  
The Individual

The availability of web- and mobile-based technologies (WMBTs) for dementia prevention and care has grown exponentially over the last decade. These include computer-based resources such as online self-diagnostic tools, mobile-based resources such as applications (“apps”) that track lifestyle metrics or provide interactive platforms for cognitive engagement, and cross-platform resources such as websites providing health information. Despite their potential benefits, key ethical challenges have been identified in WMBTs for dementia both at the individual and societal levels, including issues of privacy, quality, and accessibility. This chapter explores the ethical challenges surrounding the use of WMBTs for dementia and highlights recent evidence on the positive and negative impacts of WMBT solutions. The chapter reviews development and design recommendations that have been put forward to maximize the benefits and minimize the harms of using WMBTs for dementia. It closes by looking to the future and proposing development considerations for future WMBT development.

Transnational Capitalism in Latina/o Literature

2018 ◽  
Author(s):  
Rosaura Sánchez ◽  
Beatrice Pita
Keyword(s):  
Cultural Production ◽  
The United States ◽  
Agricultural Fields ◽  
Social Location ◽  
Labor Conditions ◽  
Free Trade Zones ◽  
Female Workers ◽  
The Impact ◽  
The U.S ◽  
Soil And Water

Latina/o cultural production has long dealt in different ways with the impact of transnational capital, globalization, and imperialism not only on immigration from Latin America, especially since the 1970s, but also on Latina/o residents (whether citizens or immigrants) in the United States, particularly with respect to social location, positionality, and labor conditions. Of particular importance to contemporary Latina/o writers is noting that transnational capital has led not only to the restructuring of the U.S. economy but also to the creation of free trade zones in the Global South, especially on the Mexican border, where workers, especially female workers, are extremely exploited and subject to feminicide. In view of the continued participation of a number of Chicana/o workers in the agricultural fields of the Southwest and Northwest, Chicana/o writers have also been especially concerned with ecological issues and the health of all workers subject to pollution and contamination of the air, soil, and water. These are all issues reconstructed in Chicana/o—Latina/o literature, past and present.

Sign in / Sign up

Export Citation Format

Share Document