Margarita Velandia

Dr. Margarita Velandia


Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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29 December 2019 in Agronomy
Verified
Journal Article
Open access
PDF file
MVMargarita Velandia
Margarita Velandia
SGSuzette Pedroso Galinato
Suzette Pedroso Galinato
AWAnnette Wszelaki
Annette Wszelaki
The use of polyethylene mulch in vegetable production is considered unsustainable because of its contribution to soil plastic pollution. Plastic biodegradable mulches (BDMs) are a more sustainable option because they are tilled into the soil or composted at the end of the cropping season, and designed to decompose into water, carbon dioxide, and microbial biomass, reducing soil plastic pollution. Regardless of the potential environmental benefits associated with the use of BDMs, farmers will have to evaluate the changes in profits when transitioning from polyethylene (PE) mulch to BDM before deciding to adopt BDMs. This study evaluates the factors associated with the economic feasibility of adopting BDM in pumpkin production using a partial budget and sensitivity analyses. Results suggest that the cost of BDM, labor costs, and sale price discounts, due to mulch adhesion in pumpkin fruit have the greatest impact on profits when transitioning from PE mulch to BDM. When assuming current market prices for PE mulch and BDM, the 2019 Tennessee Adverse Effect wage rate, and no price discounts, transitioning from PE mulch to BDM results in a positive impact on profits. When assuming a 5% price discount, this transition results in a negative impact on profits.

1 April 2017 in Journal of Extension
Verified
Journal Article
Open access
PDF file
BEBrittani Edge
Brittani Edge
MVMargarita Velandia
Margarita Velandia
DLDayton Lambert
Dayton Lambert
RRRoland Roberts
Roland Roberts
JLJames Larson
James Larson
AMAshok Mishra
Ashok Mishra
Using information from precision farmer surveys conducted in the southern United States in 2005 and 2013, we evaluated changes in the use of precision farming information sources among cotton producers. Although Extension remains an important source for producers interested in precision farming information, the percentage of cotton producers using Extension to obtain precision farming information has decreased over time. Results from our study should motivate Extension professionals to re-evaluate the precision farming information they provide to producers and the practices they use to provide such information in efforts to maintain Extension's importance as an information source.

1 April 2014 in Agricultural and Resource Economics Review
Verified
Journal Article
Closed access
PDF file
MVMargarita Velandia
Margarita Velandia
CCChristopher Clark
Christopher Clark
DLDayton M. Lambert
Dayton M. Lambert
JDJames A. Davis
James A. Davis
Kimberly JensenKimberly Jensen
Kimberly Jensen
MWMichael D. Wilcox
Michael D. Wilcox
State programs promoting their agricultural products have proliferated in response to increased consumer interest in locally grown foods. Tennessee, for example, currently has two state-funded programs promoting its agricultural products. This study examines the factors associated with participation by Tennessee fruit and vegetable farmers in those programs. The results suggest that farmer participation is associated with farm income, use of extension resources, and fresh produce sales. These results should be of interest to anyone attempting to increase producer participation in such programs.

8 March 2020 in Sustainability
Verified
Journal Article
Open access
PDF file
MVMargarita Velandia
Margarita Velandia
RRRoderick Rejesus
Roderick Rejesus
CCChristopher Clark
Christopher Clark
KDKaren L. DeLong
Karen L. DeLong
AWAnnette Wszelaki
Annette Wszelaki
Kimberly JensenKimberly Jensen
Kimberly Jensen
The substitution of polyethylene (PE) mulch for plastic biodegradable mulches (BDMs) in fruit and vegetable production has the potential to reduce the negative environmental impacts associated with PE mulch use, and the overall sustainability of fruit and vegetable production. A better understanding of the factors associated with BDM use could inform efforts to promote the use of BDMs. The main goal of this study is to assess the correlation between the use of BDMs among fruit and vegetable farmers, and labor savings and environmental stewardship. Using data from a Tennessee fruit and vegetable farmer survey and probit regressions, this study evaluates the correlation between the use of BDMs, and the labor savings associated with the use of BDMs and farmer environmental stewardship, after controlling for farmer and farmer business characteristics. Results suggest that farm size, farmer environmental stewardship, and labor savings from BDM use are strongly correlated with the use of BDMs among Tennessee fruit and vegetable growers, specifically among those farmers who are more likely to have previous experience using PE mulch.

1 December 2022 in Culture, Agriculture, Food and Environment
Verified
Journal Article
Closed access
KRKaren E. Rignall
Karen E. Rignall
KTKeiko Tanaka
Keiko Tanaka
MVMargarita Velandia
Margarita Velandia
CTCarlos Trejo-Pech
Carlos Trejo-Pech
ABAlessandra Del Brocco
Alessandra Del Brocco
TCTeya Cuellar
Teya Cuellar

1 October 2013 in Journal of Extension
Verified
Journal Article
Open access
PDF file
DWDena Wise
Dena Wise
CSChristopher Sneed
Christopher Sneed
MVMargarita Velandia
Margarita Velandia
ABAnn Berry
Ann Berry
ARAlice Rhea
Alice Rhea
AFAnn Fairhurst
Ann Fairhurst
The Local Table project compared results from parallel surveys of consumers and restaurateurs regarding local food purchasing and use. Results were also compared with producers' perception of, capacity for and participation in direct marketing through local venues, on-farm outlets, and restaurants. The surveys found consumers' and restaurateurs' most common expectations of local foods are that they be environmentally safe and sustainably produced and distributed—all socially-conscious reasons for their purchases. The study informs Extension educators by providing a snapshot of supply and demand for local food products across three distinct groups—producers, restaurateurs and consumers.