MorpheusPA wrote: It's slow to decay, but that's a good thing here, and will influence those areas for years.

Can/should you put down horse bed pellets now if you want to overseed in about 5 weeks? Any harm if they have not broken down by the time you want to plant seed?

MorpheusPA wrote:Milorganite translates about 10% into OM, soybean meal about 20%, so you'd have to use double the amount of Milorganite to get the same OM rise as soybean meal.

Aha! Finally something an engineer can wrap his arms around!

Bentface1 wrote:

MorpheusPA wrote: It's slow to decay, but that's a good thing here, and will influence those areas for years.

Can/should you put down horse bed pellets now if you want to overseed in about 5 weeks? Any harm if they have not broken down by the time you want to plant seed?

You may if you wish, sawdust won't do any harm, and in five weeks decay should be far enough along not to be a nitrogen tapping issue (if it isn't just fertilize when seeding).

Don't go over the standard quarter inch (of expanded pellets, not pellets themselves).

Mechadan wrote:

MorpheusPA wrote:Milorganite translates about 10% into OM, soybean meal about 20%, so you'd have to use double the amount of Milorganite to get the same OM rise as soybean meal.

Aha! Finally something an engineer can wrap his arms around!

Don't get too married to that. It depends on soil pH, moisture (wet areas will produce more humus but less advantage for the lawn), and about a thousand other things.

It's also only the initial decay. Eventually it all goes to zero, or at least extremely close.

MorpheusPA wrote: Don't go over the standard quarter inch (of expanded pellets, not pellets themselves).

I don't think I saw a rate for the sawdust pellets (lbs/1000 sq ft)... do you know how far a 40lb bag would go? I know you were primarily spot treating, but I was thinking of an application across the whole lawn. I priced it at $5.89/bag so it really is very cheap.

My 40 pound bags were going about 70 square feet in problem areas, but perhaps we shouldn't do that.

Call it 400 square feet to target 100 pounds per thousand square feet. If you'd like to go higher, just adjust the math from there.

Rake the pellets in BEFORE they get wet or they're much harder to do.

100/1k sq ft... more than I would've thought! I thought you were going to say 20-30lbs/1000 sq ft, haha...

Sure, do that if you want instead. For mulching that'll be trim, but every little bit of OM helps.

It is so cheap that going a little heavier should not be a problem. Thanks!