Disking in corn stalks

Is there a general rule with discs harrows for weight per blade to effectively
cut up and bury standing sweet corn stalks?  I have an old, lightweight , rusty,  brand unknown 3pt disc. It is a joke, more of a corn crimper.  I think it is 37 pounds per disc.
looking at some specs on modern heavy duty discs (draw bar pull), they are 220
to 400 pounds per disc. So 6x to 10x more than what I have.
However, there are a lot of lightweight  3pt discs on the market with weights about near what I have.  I assume these lightweight discs wouldn't work all that much different from mine? Any comments appreciated.

Guys use discs differently now then years ago. 60 years ago discs were light and used to level already plowed ground. They plowed the stalks under, then disced. These discs won't do much running over corn stalks. If you really want to disc stalks under you have a get a newer/much heavier disc with wider spacing and 20"+ blades.

Hate disking stalks. Relly depends on wieght. If all you have is a small tractor youll never be happy. Need to be able to pull a heavy disc. I pulled a 14ft kewanee with my 7000 this year and had to make 3 passes. Its just not a heavy disk. I dont see any 3pt being able to do much. You really need to plow it under any disc leaves a lot of trash on the surface and a regular old planter wont work well

Can you shred down the corn stalks and sow the rye into the residue? Work everything under in the spring and save yourself a trip across the field?

Why not just plow the stalks? then disc

2500 disk does a fine job for me. Don't know the blade pressure.

If you're not getting the disking job you prefer and, the disk is set up correctly and, the disk blades are in decent shape you may need to chop the stalks first. When you disk, run with the rows first and then a second time at an angle. You should then
 be able to plow them under. Plowing whole stalks, even if you can get coverage, will not result in a good seed bed.

Soil needs to be dry while disking stalks too. Otherwise it wont cut them just mashes them into the mud

The heavy three point disk harrows are hard to find but they are out there. Look for 9 inch spacings and 24 inch disk. You still may need to add weight. The best one I've ever seen was a 16 Disk Taylor Way we got a package trade. You could fold the black gang up on top of the front and run it as a bush and bog Harrow. Sometimes I wish we had kept it. The 160 AC that came with it had a full set of front weights to keep the wheels on the ground.

Wow this is a very interesting read. When we had cow corn I don't know the type as I was a kid we always did an airplane based seeding of winter rye in the fall after we harvested the corn and we would disk it twice in the spring with an old Allis chalmers snap coupler 12 foot wide disk that was converted to be pulled on a clevis by our 100hp IH 986 I think was the model. That IH would bury the disk in the ground if you where not careful setting the depth but it did a great job in the spring two passes and the ground look great. When we wanted to clear hay fields we would spray them with round up and wait till the grass all died and turned brown the the disk would cut right through it like nothing and in three passes you had nice level ground you could reseed. The round up trick the break up sod blew my mind but it did work.

Of course we would also blow out about 3 sealed bearing in the old AC disk a year disking 150 acers two passes. I do wish that disk was still here but it got sold when the dairy cows left in the 90s.

I think the bearings went when someone dropped the disk too deep. I just remember changing them was no fun. I always thought a stop should have been added but the way ours was setup you could drop the disk below their center point if you didn't pay attention.   I only used it a few times in the early 90s.