Grain Drills

--->Paul

There are no single disk type around 'here'. They all went to the trash heap. The few I see on auctions anyone who comments roll their eyes - and they sell for about scrap.

I let cattle grase some cornstalks, disk once, & plant oats into that in the spring. Lots of trash. It works fine with my double disk. Hairpinning is a problem for getting corn in the ground, but around here small grains are pretty easy to get growing, to be honest the single disk would be fine too.

I suspect the hard clay is the 'local' issue for double disks being much more popular here.

I can see where a single disk would throw the trash to the side, leaving bare ground for the seed. Makes sense. Our clay would not move back again to cover the seed I think.

Don't you have a lot of wear & side-draft with a single disk? Never understood how the bearing & linkages take all that side-pressure.

--->Paul

But used it to reseed grass seed into ripped alfalfa then drag it after.

Dragging after is a must tho even with drag chains on.

I suppose both get as deep, but the double disk makes a narrow slot that has a better chance of closing again, while the single disk does not seem to cover up the seed as well. Uncovered seed is wasted seed.

--->Paul

The single disc is sitting at an angle and has to push the dirt away to get a place for the seed to fall whereas the 2 disc just cuts a slit like the bow of a boat cuts water with the blades straight fore and aft.

Seems to me to be a lot less strain on the blade(s) and on the running gear. Mother Deere makes both so they must work but mine have been double and in our clay soil, most I've seen have been double.

Mark