From: University of Arizona

“Incorporating castings into potting soil results in faster germination and plant growth, and      increases crop yield, researchers have found.”

.”https://swes.cals.arizona.edu/environmental_writing/stories/fall2012/martin.html

 

From: North Carolina State University

“When vermicompost is added to soil, it boosts the nutrients available to plants and enhances soil structure and drainage. Vermicompost has also been shown to increase plant growth and suppress plant disease and insect pest attacks.” https://composting.ces.ncsu.edu/vermicomposting-north-carolina/

From: NPR

“Scientists are still working out all the details of what makes worm manure so magical. And they are compiling data to back up its effectiveness. Norman Arancon, assistant professor of horticulture at the University of Hawaii at Hilo, has run tests with tomatoes, strawberries, peppers, raspberries and grapes; he and colleagues have found that substituting a portion of standard fertilizer with vermicompost increases yields by 30 percent.” https://www.npr.org/sections/goatsandsoda/2016/08/12/489748719/the-power-of-worm-poop

 From: Growing a greener world.com

“Jack and his family have been fortunate to work with some high-end vineyards in Napa and Sonoma Valley. About a cup of worm castings is added to each hole as the vines are planted. According to Jack, “some vineyards were losing up to 20% of their new plantings. When they use our vermicompost, the losses are less than 1%. One vineyard used our vermicompost, and after planting 3,000 vines, they found that they didn’t lose a single vine.” Clearly a testament to the power of worms.”   https://www.growingagreenerworld.com/episode112/

From: National Center for Biotechnology Information, U.S. National Library of Medicine

“Vermicompost applications increased strawberry growth and yields significantly; including increases of up to 37% in leaf areas, 37% in plant shoot biomass, 40% in numbers of flowers, 36% in numbers of plant runners and 35% in marketable fruit weights.” https://www.ncbi.nlm.nih.gov/pubmed/15051076

Quotes/Studies

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