Posted by Coyotefred on May 7th, 2007
Well it’s been some time since I’ve posted, but the good news is that much of that time I’ve actually be PLANTING and field-testing some tools and techniques I’ll share here, some of which might benefit others.
My first project was coming up with a reasonably cost-effective seeder for seeding areas larger than my handy Earthway Garden Seeder could handle. What I came up with is this:
I know it ain’t pretty and it probably won’t win many awards, but I’ll tell you it does the job pretty well.
We start with a garden tractor, in my case a Sears Craftsman 26HP, 54" Mower/Garden Tractor (Model 917.27692). This if of course the most expensive part of the operation and some thought needs to be put into the best choice. Intially I played around with the idea of an ATV rather than a garden tractor, but when I priced everything out (esp. needing to buy a separate pull-behind mower for mowing), my budget dictated this choice instead. You might be able to make this work with an ordinarily "riding lawnmower," but everywhere I read cautioned against this, explaining that the wider tires, different gearing, and hitch set-up of a true "garden tractor" was necessary for something like tillage/cultivating. Of course if you already have an ATV that would be an effective approach as well.
So far I’m pleased with this Garden Tractor, although I haven’t yet used it for any mowing (and probably won’t since my whole goal here is a relatively maintenance-free prairie "lawn"). The 54" mower deck is removed easily, which I did for all of this kind of work. I bought the optional Sleeve Hitch (Model. No. 486.24536) which was necessary for using the attachments and which installed easily.
Attached directly to the tractor via the sleeve hitch is a 42" "Row Crop Cultivator" made by Agri-Fab (around $150). This is raised and lowered by the arm-lever control of the sleeve hitch.
The cultivator has 7 tangs which can be spaced as you like with the U-bolts. I ended up installing them as you see above, which worked well for the heavy rate of seeding I had in mind for my project. Obviously you could reduce the number of tangs/adjust the spacing to suit your needs.
Next I added Agri-Fab’s Ground Drive Drop Spreader with a 40" spread width and 175lb carrying capacity (around $200). This is where I had to be a little clever. Ordinarily this drop spreader would attach directly to the garden tractor or ATV. But after some experimentation I found this really wasn’t ideal. For one thing you had to make at least two passes: one with your cultivator and another with your drop spreader to seed. But on that second pass your big-old tires would end up closing up some of your furrows, which was less than ideal. In the end I simply wired the tongue of the drop spreader to the back of the cultivator. ‘Nothing fancy about it but you really don’t need anything more than that. Now with one pass I could easily drop the seed into the furrows created immediately ahead of it with the cultivator.
One problem with this arrangement, however, was opening and closing the seed drop lever from your seat on the tractor with your seeder being so far behind you. For this I simply attached a long wooden rod to the seed control lever.
Now I could easily "shut off" the seed when I need to when making turns, etc. This worked surprisingly well and only required some practice to remember to do it 
The remaining addition was to find some means of closing up the seeded furrows. Initially I planned to just use my seeder without any additions and then make a 2nd pass over the seeding with a drag harrow, etc. But there’s something appealing about being able to make just a single pass, so I rigged up a couple of drag chains pulled behind the seeder:
The front chain is a heavy logging chain; the rear one a lighter chain with more links to make greater soil contact. The wooden spacers were necessary to keep the chains from "bowing" and not extending the full 40" of seed spread area. These were attached by a couple of 1" wide pieces of metal I just shaped with a hammer to ride over the axle between the wheel and the body of the seeder:
The wooden spacers and chains were attached simply by drilling some holes in them and wiring them in place with some fencing wire. Certainly someone more mechanically inclined or inspired might come up with something sexier, but this worked well, never fell off or became tangled, etc.
So that’s the basic design. I’ve used this setup to plant probably about 1.5-2 acres of ground where the large drill on my seeding project (15′ Great Plains drill) couldn’t come close to reaching. I also used this to run along "critical areas" (e.g. along fencelines) to give them a "double seeding" to outcompete the weeds.
All things considered this setup is pretty maneuverable. Backing up is nearly impossible (at least for me!) so one has to plan ahead in tighter spots for turn-around room. The seeder is quite adjustable and does a great job laying down a variety of seeds, as can be seen here (with a mix of wheatgrass and prairie sandreed):
The chain drags do a nice job of covering the furrows up:
If you want greater compacting, just pull up the cultivator and drive over your planting a few times with those big fat wheels.
I didn’t do any additional compacting, however, and I had excellent germination results as you can see below with my assistant standing nearly on top of a clearly-visible planting run (wheatgrass seedlings about 3" high):
I used this to do my seeding about a month ago, and I’ve inspected most of those areas and found a high rate of germination and pretty consistent seeding. This system works really fast and the "one pass" operation means no worrying where you went the first time in heading back for covering/packing/etc. This worked easily around outbuildings and many "tight" places; tighter ones I finished off the the Earthway seeder. Note, however, that most of this ground was previously tilled using an old John Deere tractor. Soil prep is key with this setup. With the tines set so closely, too much debris/soil litter would quickly "clog" them up, making seeding difficult. My soil is also pretty sandy/loamy, so I can’t say this setup would necessarily work wonders on heavier clay soils. However, I’ve been very pleased with the results. This is a cost-effective, hassle-free way of laying down a significant amount of native seed with one-pass efficiency. I wouldn’t want to plant 10-20 acres with this, but if one were patient you could certainly do it (with effective results).
Coyotefred
PS I just re-read this and wanted to emphasize again the importance of pre-planting soil prep. Most of the ground I planted using this setup had been tilled several times last year to loosen up the weed-bound soil and for weed control (tillage not only kills existing weeds but disturbs soil, encouraging new weed germination which are then killed with subsequent tillage). Even with multiple tillages last year I can already see a fair number of weeds already coming up along with my planting. Nevertheless, I think taking an entire season for nothing but prepatory tillages made sense, and certainly made seeding easier and into a more weed-seed-free seedbed. This setup can get "clogged up" pretty quickly in areas where debris/litter in the soil are somewhat thick, so some kind of soil prep is necessary. In my case I had a neighbor disc everything up with his huge disc early in the season, and then I did subsequent diskings with my old John Deere 60. This is a disruptive process, but I think in the big picture it made sense to do it this way. A huge seed drill like the Great Plains 15 footer I used to drill most of my 20 acres has no problem drilling into existing weedy soil, but that huge drill (and the tractor that pulled it) couldn’t get to a lot of areas around outbuildings, trees, silos, some fencelines, etc. So either those areas don’t get seeded (and these are often the weediest), or you need something like this. So I guess the bottom-line is that I would highly recommend finding some way to do some serious soil-prep before you even think of planting. If your seeding area is relatively weed-free already this can be less-intense, otherwise it probably isn’t a bad idea to devote an entire season of discing (or chemical knockdown like glyphosate/Roundup) so the following season you can be planting into a more weed-free seedbed…
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