UGA Extension Resources
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The University of Georgia evaluates short day onion varieties to determine their performance characteristics in standardized growing practices. Variety entries for the trial are submitted by participating seed companies. These trials are conducted at the Vidalia Onion and Vegetable Research Center located in Lyons, GA. There were 52 varieties entered into the 2021–2022 UGA onion variety trial.
Christopher Todd Tyson, Ted McAvoy, Jason D. Edenfield, Aubrey Shirley, Derrick Brown, Denny R. Thigpen, Daniel Clark, Steven Powell, Savannah Tanner, and Ross Greene
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This study aimed to determine the effect of biodegradable mulch on Vidalia onion bulb yield in three sweet onion cultivars.
Juan Carlos Diaz-Perez and Christopher Todd Tyson
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This study looked at the relative availability of sulfur from various soil profile depths by growing onions on raised beds with differing depths to the claypan and varying sulfur content.
Daniel L. Jackson, Jason Lessl, Matthew Levi, Timothy Coolong, and Christopher Todd Tyson
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This study examined the extent of variability in soil properties across the Vidalia production region and how those differences are related to onion yield and pungency. While soil characteristics, like claypan depth, clearly play a major role in onion productivity and flavor profile, soil series classification alone is not sufficient to describe how soil characteristics influence onion yield and pungency. Further research is needed.
Daniel L. Jackson, Jason Lessl, Matthew Levi, and Christopher Todd Tyson
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Understanding nitrogen requirements of onions at different growing stages is crucial to adequately manage N fertilizer applications and enhance fertilizer use while minimizing nutrient losses. In this study, the fertilizer N use efficiency of onions was investigated. The application of N fertilizer right after transplant is inefficient; targeting the periods of heavy vegetative growth and bulb initiation was most efficient in providing N fertilizer for onion plants.
Hanna de Jesus, Bhabesh Dutta, and Timothy Coolong
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The objectives of this study were to quantify the efficiency of field workers in transplanting Vidalia onions at an approximate population of 95,000 seedlings per acre and to verify the consistency of transplanting. The quality of transplanting varied widely among field workers, with issues such as seedlings lying on the ground, partially transplanted seedlings, and multiple seedlings in a single furrow. These inconsistencies can negatively impact plant population and uniformity.
Luan Oliveira, Regimar Garcia dos Santos, and Christopher Todd Tyson
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Bahiagrass is a long-lived, perennial warm season grass that is grown extensively in the southeastern United States. It is most commonly used as a pasture species, but can be used for hay production, erosion control, and wildlife habitat. Bahiagrass can also be used in “sod-based rotation” sequences that have been found to suppress pest problems (nematode and disease issues) in crops such as peanuts.
Lisa Baxter, Lawton Stewart, Ronald Scott Tubbs, Jeremy Kichler, and William Secor
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House and garden plants may be toxic to cats and dogs. This visual guide will help pet owners learn which plants are safe, as even common plants can be deadly.
Brenda Jackson and Ellen M. Bauske
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