additive for small seed

I'm looking into planting quinoa using a JD 9350 grain drill. Because of the small seed only 1 pound is seeded per acre. Thus I'm wondering if anyone out there may know of something that won't grow and can be added to the seed mix to thin it out and aid in seed measurement. Some examples I've thought of were either sand, talc like whats used in corn planters or maybe a netural PH based fertilizer or innoculant. Let me know what you all think. My drill does not have a grass attachment but does have the super low speed gear feature for seeding canola.
 
i've known guys seed small seeds by mixing in with rolled oats and it seems to work, may take a bit to get the rate right though...

if you have the granular fert box on the drill and it works you could always mix the seed in with some fertilizer and then seed through the fert box...
 
Presumably pelleting (coating with something to build up the size) would work, but may require equipment you don't have and or more expensive (processed) seed...

Not sure what options there may be for home-brewed affordable pelletizing machinery/methods. Almost seems like "rock-tumber" or "cement-mixer" sorts of things might work, but I'm just not finding much info other than "buy this compete system" which is useless for home-brew. More (possibly) usable information is available from "confectionary" sources as "pelletizing" (seeds) and "panning" (conectionary coatings - chocolate, sugar, etc) are either the same process or very closely related. Hmm. "Pan coating seeds" actually pulls up some usable descriptions of the process on seeds.

Basically putting the seeds in a rotating "pan" or drum, spraying on a liquid, and then sifting a powder onto the wet, tumbling seeds. But I have no idea how practical this might be for on-farm local production - one advantage would be that you could plant soon after coating, since one issue with coating is that seeds may respond to the wetting and move towards sprouting, so the process needs to be well-controlled to not ruin further storage life, evidently.
 
I don't know if newer planters have a grass seeder box but older drills like my Ontario drill does and they are made for small seed.Maybe you need to step back into the 50's and join my world - LOL.
 
in the fert box I'm already dropping sweet white lupin. The two crops will be companion crops in alternating rows. Thanks for the response on the rolled oats idea.
 
I don't have a drill, so I used my IH v box fertilizer drop spreader, for my alfalfa, and cut the seed with kitty litter, or oil dry, whichever you like to call it. It kinda worked, after driving over tarps spread out on the road, to figure out my settings. The birds thought the kitty litter was good to eat, till they tried it. LOL I forgot! I also had some Vetch in there also.
 

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