Managing the School Greenhouse
Strategies to maximize learning in the school greenhouse


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Ferilizers & Soils

Conversion Charts
  • Table: Number of pots and flats that can be filled from 1 ft3 of soil mix(University of Georgia)
  • Conversion Tables, Formulas and Suggested Guidelines for Horticultural Use Conversions for fertilizers, Osmocote, fertilizer injectors, etc. (University of Georgia)

    Fertilizer & Fertilizer Injectors
  • Calculating Parts Per Million(Texas A&M University)
  • Fertilizing Greenhouse Crops (Texas A&M University)
  • Grower 101: Calculations ... Fertilizers(GPN article)

    Growing Media
    Most school greenhouses have moved away from soil or compost as a component in their growing media. It has potential to bring weeds, insects and disease into your greenhouse. Also soil and sand weigh more. More work carrying pots.

    Most schools don't create their own soilless mixes, since good quality, reasonably priced soilless mixes are available. Also The bins for the different soil components takes up valuable space in the greenhouse. It is good to know the different ingredients and to teach them to students, but it takes space and time to create mixes.

    Basic PowerPoint on Greenhouse Media & Fertilizer by Clark Harris

  • Cornell Peat-Lite Mixes for Commercial Plant Growing
  • Grower 101: Soil Amendments --Sorting Through the Crowd(GPN article)
  • Growing Media(Texas A&M University)
  • Horticultural SubstratesUniversity of Arkansas lesson
  • Hummert Catalog - Growing Media, Wetting Agents, Soil Conditioners, etc.
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    ©2007 Clark R. Harris


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