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Category: Horticulture Media & Soil Amendments

April 16, 2021

Variations on the Pennsylvania Biochar Kiln

PLEASE NOTE: This post is a draft. I have not yet built this kiln but I have purchased the steel and will build it this May. So, I have not tested the below drawings. Use…

March 29, 2021

A Primer on Formulating Horticultural Container Media from Sustainable Substrates

Dr. Richard Freeman This primer introduces the audience to a framework for understanding and formulating horticultural container media (HCM) from sustainable substrates. The intended audience includes horticulturists, orchardists and farmers who are interested in sustainable…

January 25, 2021

A Guide to Assembling a Large Container for a Biologically-Intensive, High-Production, Sun-Grown Horticulture

Dr. Richard Freeman This guide provides step-by-stem instructions for setting up a 10-gallon grow bag using a zonal system (layers and spikes) for producing a high production plant such as Cannabis sativa (marijuana) or Solanum…

January 19, 2021

A Guide to Making Fertigation Solutions for a Biologically-Intense Container Horticulture

Dr. Richard Freeman This guide provides instructions for creating fertigation solutions that target any pH level and nutrient demand based on easy to replicate fermentation processes the requires little equipment. The intended audience includes urban…

January 18, 2021

A Guide to Formulating a Biologically-Intensive Horticultural Container Media from Sustainable Substrates

Dr. Richard Freeman This guide provides instructions to formulate a high-production, biologically-intensive horticultural container media using sustainable resources. The intended audience includes urban horticultural operations seeking to maximize production of sun-grown crops in limited space…

January 11, 2021

Instructions for Building a Sub-Irrigated Raised Bed

Philip Small, Soil Scientist, CPSS These brief instructions provide a basic description of a sub-irrigated raised bed based on a design demonstrated to work on the author’s site which has prolific sucker sprouting from hard…

May 14, 2020

Biocharring using a kontiki biochar kiln, rick (stacked) style — a pictorial

Dr. Richard Freeman

April 28, 2020

Using a top-lit updraft “conservation burn” to transform old forest residue (pine slash) into biochar in the wildland-urban interface – Pictorial

Dr. Richard Freeman The biochar process demonstrated with these photos yielded about 6 cubic feet of good quality char. The wood came from an old forest slash pile near a residential site in the wildland-urban…

March 15, 2020

Blending High-Performance Horticulture Media with Renewable Substrates

Richard Freeman, Designed Ecosystems For high-performance horticulture, I prefer to replace the standard peat-lite (various combinations of peatmoss and perlite) with an aerated blend of aggregates and fibers made from renewable resources. This blend is…

March 14, 2020

The “Conservation” burn: An easy way to transform slash to biochar using the top-lit up-draft approach

Richard Freeman, Designed Ecosystems This charring technique is a relatively easy and quick way to char a large amount of forest residue wood, also known as “slash.” It combines roughly sorting the wood by diameter,…

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