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Author Archive | drsteve

Dean Kopsell greenhouse University Tennessee

Voices of Horticulture: Dean Kopsell, University of Tennessee

  Dean Kopsell, University of Tennessee Eating marigold petals Dr. Dean Kopsell talks about why we should eat marigold petals and what his students found to be the best red to blue ratio for peak carotenoid concentrations. Dean is a professor at the University of Tennessee and has studied an eclectic range of crops including […]

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Gioia Massa NASA lettuce

Voices of Horticulture: Dr. Gioia Massa, NASA

  Dr. Gioia Massa, “Veggie” Scientist at the Kennedy Space Station, NASA “NASA’s Veggie and Space Kids” Dr. Gioia Massa is a plant scientist in NASA’s Veggie program which aims to grow plants in the International Space Station (ISS). Gioia is a Future Farmers of America (FFA) alumni and has grown her early love for plants to […]

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Voices of Horticulture: Bruce Bugbee, Utah State University

  Dr. Frits Went and the Pursuit of the McCree Curve Dr. Bruce Bugbee of Utah State University was the opening speaker at the 2016 International Society for Horticulture Science Symposium on Light in Horticulture. Dr. Bugbee talks candidly with me about how understanding history can give us a keen insight into today’s botanical questions […]

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Hort Americas CBOP

CBOP – Hort Americas Closed Bottom Organic Plug

Propagating in coco coir is a great way to establish plants. Now with the new Closed Bottom Organic Plug, CBOP, from Hort Americas you can reap the benefits of what you sow. CBOPs are available in three sizes to fit the specifications of your production system. Whether it is nutrient film technique, raft, grow bag, […]

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Grodan AX 25/40 cube with lettuce roots and stem post-harvest.

Starting Seeds in Grodan

The most important thing when using Grodan stone wool is that you need to saturate the product fully before using it. When you don’t fully saturate it, some of the stone wool can stay dry and will be hard to get wet at a later stage (hydrophobic). A way to check if the product is […]

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Figure 1. Production Draglines w bucket

Where does phosphorus fertilizer come from?

If your phosphorus fertilizer is sourced from the U.S. it is probably derived from Hillsborough, Polk, Manatee, and Hardee counties in Florida. Recently, I had the opportunity to tour Mosaic’s South Fort Meade Mine facility. The Mosaic Company’s South Fort Meade Mine has an annual production of 6.5 million tons per year running 24/7/365. It’s size is […]

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