25/08/2026
Regrarians Ripper Rotor (RRR) MK1 - 2nd Pass on a Gippsland Carbon Agroforestry Project
"...we should be planting strawberries..."
Some of you will have seen that earlier this year I designed and helped make this single-pass, non-inversion subsoiler & Ø40cm single-rotor hydraulic power harrow.
The problem I've long been looking to solve is how to use lower HP farm tractors at scale to do minimum-tillage, 'advanced soil preparation' for woody plant establishment. As a planter and manager of agroforestry trees, I also know how difficult planting is when you have s**t soil preparation and how poor the establishment and growth rates can be as well.
Regrarians started working with Justin Glass and the team at Covalent Land Australia in 2025, and this 609ha grazing operation in the Victorian High Country is the pilot for that relationship.
From our first meeting, my challenge to him was that mechanical soil preparation on large agroforestry projects using bulldozer rippers, disc-plows and one-pass preparation, was not only expensive, it also makes planting both inefficient and difficult.
The development of tilth, which farmers (and gardeners) are very familiar with, is not something you get with hyper-aggressive dozer rippers and disc plows + makes the use of knockdown and residual herbicides necessary.
Having significantly reduced the cost of preparation, the RRR is a form of 'strip-tillage', with a 50cm deep (using a Tilco Hydromax Ripper) x 40cm wide tillage zone (following 'Keyline®' geometry) being prepared over two passes—one in late summer/early autumn, and the 2nd in early spring, immediately prior to planting.
This site will be planted using BCC Plant the Planet 'Pottipuki' planting spears, and having been on the end of one of these on many projects, I know that the planting team will really appreciate the planting result.
Shane, the tractor operator, who is himself a mixed farmer (of 1000 acres here in Gippsland), shearer and forestry contractor, said yesterday, "...we should be planting strawberries..."
That's a great compliment and reminds me of that saying, "...you should garden like a farmer, and farm like a gardener..."
Yours and Growing,
Darren J. Doherty
Regrarians Ltd