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Fundamentals of Organics: Greenhouse Production

March 27 @ 10:00 am - 1:00 pm

Join UMass Extension, NOFA/Mass, and Gideon Porth of Atlas Farm next Wednesday for the next workshop in our Fundamentals of Organics series.

In this session, Gideon Porth, the owner of Atlas Farm, will share his experiences growing transplants with different systems as he has scaled up over the last 20 years, troubleshooting issues common in certified organic seedling production such as potting mixes, fertilizers, and pest control. Currently the farm has a large seedling production greenhouse with automatic watering, requiring a high degree of uniformity of the transplants trays to be successful. Over the years they have honed their greenhouse seeding techniques to include an automated tray filler, vacuum seeders, and a home-made vermiculite seed topping conveyor. With this system, three workers can fill and seed up to 200 trays per hour.

This workshop is intended for commercial vegetable and small fruit growers.

This workshop is part of the Transition to Organic Partnership Program (TOPP).  To learn more about the UMass & NOFA/Mass programming, check out the NOFA/Mass TOPP web page. To learn more about the national TOPP program, visit

When: Wednesday, March 27, 10am-1pm, lunch included!
Where: Atlas Farm, 635 River Rd, Deerfield, MA, 01342
Registration: Free! Please register in advance for food ordering purposes. Click here to register.


March 27
10:00 am - 1:00 pm
Event Category:


Atlas Farm
635 River Rd Deerfield, MA 01342 + Google Map


UMass Extension
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