Biochar pit sizes and volume of production

It’s been seven years since I posted anything to this blog, but it’s a reasonable place to put things I’ll want to refer back to, so… There are currently two biochar pits. Pit 1 is the original, and Pit 2 (built July 2015) is a larger pit which incorporates lessons learned from the first pit. I …

Farm visit: pictures, lots of work done, rotary sifters

Tons of work got done during the 3 weeks there, including: Took down and partly processed 6 very large cypress trees above the tea field Started new long-term compost pile Planted several dozen new tea plants, mostly Y/Y cultivars Lots of wood moving and splitting Re-built the char pit with real firebrick, which should last …

Farm visit fall 2012

I’ll be back on the island from August 24 – September 15 – to work on the farm, plant tea plants, split firewood, make compost, make biochar, and experiment with lots of cool stuff like making native bricks and larger and better biochar production techniques. I’ve also just bought a GoPro and Steadicam so i …

More on Tea & Biochar in Sri Lanka

More about growing tea with biochar in Sri Lanka, from an eariler comment on this blog. 1. “Biochar: Can it put the tea industry back in the black?”, Dr. J.C. Krishnaratne, http://www.sundaytimes.lk/120624/business-times/biochar-can-it-put-the-tea-industry-back-in-the-black-3850.html In summary, it says that the Sri Lanka tea fields are in bad shape due to erosion and long-term overuse of chemical fertilizers, …

Biochar and Tea

I spent the month of September 2011 back on the farm, getting it into shape and making batches of biochar.  At the end of the month i took a truckload of the char down to Josiah’s biochar operation in Puna, where it was inoculated and ground up.  Back at the farm, the living char was …

See the tea in Google StreetView

The farm is in a very rural, remote location – which is why it’s so surprising that Google actually got around to driving the neighborhood – but they did.  You can even see the bottom part of our tea field clearly from the road, since the camera on the Google van is a bit higher …

Farm biochar flowchart

How does biochar fits into our farm?  I scribbled a flowchart onto paper, and today put it into the computer; it looks like this: Ideally, it’s a continuously flowing cycle; there is no “waste” and no need for unsustainable inputs; that’s the goal.  The chickens provide meat and eggs to the humans, and poop to …

New document on Tea in Hawai’i

The full name of the document is “Specialty Crops for Pacific Island Agroforestry: Farm and Forestry Production and Marketing Profile for Tea (Camellia sinensis)”.  It’s online at agroforestry.net (or directly to the PDF). I contributed a bit to the document, with some reviewing, an illustration of using ginger as a mulch, and some notes on …

Biochar: from kiln to pit

Those of you following the biochar-hawaii list know that i’ve stopped using my kiln, and am now focused on making biochar in a pit. This is both for reasons of scalability and wear; my 55-gal steel drum kiln/retort could only make ~23-gal of char, and the surrounding kiln blocks cracked from repeated heating. Hence, a …

Sunflowers

Most of what i’ve been up to on the farm recently relates to biochar, but to keep this from becoming an all-biochar blog, here’s a bit about the garden. I grew a patch of sunflowers this summer, planted mid-April. I needed to use row covers, to protect the seeds and sprouts from birds, until the …

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