How much compost?

[dave1949]

The only consternation I have about leaving a layer of anything on top for the winter is the slowing of soil temps in spring. Wisconsin, like the NE or Michigan where I live is a bit slow to warm up in spring. This ain't Kentucky or even Southern IL or Ohio.

We don't want an insulator blanket or sun shield on it. We need to actually furrow up our ground. This accomplishes a couple of things. It doubles the amount of freeze/thaw cycle, a good thing if there is any clay at all. It more than doubles the surface area allowing for more area of sun exposure to the soil in April and May. Think of this as the same principle as raised bed gardening. Deep valleys and high furrows will allow for up 2 weeks earlier produce setting and thus, picking.

I know this goes beyond the question asked, but it reinforces the need to do your supplementing in fall. Get it tilled and get it furrowed up for the winter. Your veggies will love you for it next July.

That makes a lot of sense. Another thought, soil with a high percentage of compost will be 'lighter' and will dry out a bit quicker. I was always told, a wet soil is a cold soil. Since most typical garden seeds germinate best around 70 deg., the sooner your soil hits that temp, the better. You guys down south can laugh, but in the northern areas it makes a difference.

The people with raised bed gardens around here put the rest of us to shame this past summer, it was a long, cool and wet Spring.
Dave.

 

[charlz]

The only consternation I have about leaving a layer of anything on top for the winter is the slowing of soil temps in spring. Wisconsin, like the NE or Michigan where I live is a bit slow to warm up in spring. This ain't Kentucky or even Southern IL or Ohio.

We don't want an insulator blanket or sun shield on it. We need to actually furrow up our ground. This accomplishes a couple of things. It doubles the amount of freeze/thaw cycle, a good thing if there is any clay at all. It more than doubles the surface area allowing for more area of sun exposure to the soil in April and May. Think of this as the same principle as raised bed gardening. Deep valleys and high furrows will allow for up 2 weeks earlier produce setting and thus, picking.

I know this goes beyond the question asked, but it reinforces the need to do your supplementing in fall. Get it tilled and get it furrowed up for the winter. Your veggies will love you for it next July.

Really depends on when you want to plant. Around here foxtail and other weeds can literally grow all winter. By the time the soil is warm enough to plant vegetables it is already covered with new growth weeds. Leaving the compost on until right before you need to plant keeps these weeds from getting ahead start. Compost is also darker than my soil so it likely helps warm the soil some.

 

[bp fick]

Really depends on when you want to plant. Around here foxtail and other weeds can literally grow all winter.

Ha! Round here NOTHING grows at -10 F

 

[DocHeb]

Five years ago I had 20 yards of Ann Arbor, Michigan city compost tilled into my 36' x 100' foot clay-based garden. Everything grew like crazy. This spring I got another 20 yards delivered. It was not as "composted" as prior, and had a lot of visible leaf matter and chips visible. This years garden was very slow to establish, and it wasn't until about 6 -8 weeks into the growing season that I recognized that the plant leaves were pretty yellow indicating nitrogen deficiency. Two weeks after 12-12-12 fertilizer and a few sprays with Miracle Grow things slowly turned around. At first I attributed the slow growth to our cool summer, but I am convinced that the compost just wasn't "composted" enough and it was binding up the available nitrogen. The clay is easier to work, but next year I will plant in the spring with 12-12-12 a couple inches below the transplants/seeds.

 

[jimmyj]

We generally add it in the spring and till it in. Our soil is reallysandy so it leaches pretty bad. This year we tried something different though and had the best garden ever. We did the usual mixing of finished compost into the soil, then, after we planted or the seeds were up a bit I top dressed each bed with about 2 inches of compost. It worked amazing. I think the black compost attracted the sun causing warming but at the same time it kept the soil from drying out too fast and leached "vitamins" to the plants.

That is my theory anyhow - whatever happened, we had a good crop.

Good luck Duffster.

 

[RobertN]

I asked my wife; she is a Master Gardener and designer.

Without more details on your soil, she said put 2-4" of compost down, till it, and plant a cover crop. In the spring, till the cover crop, and add another 2-4" of compost.

It would be nice to get planty of compost, put some on, and then let the rest of the pile cook down over the winter. Especially if it is municipal stuff; we have got that before, and it was not fully composted.

 

[Duffster]

Thanks for all of the suggestions. With all of the recent rains I think I will being doing good just to get the garden tilled this fall.

If I do get the compost on this fall it will be 1" or 2" at the most and maybe more next spring/summer. I could possibly spread some after it freezes and leave it on top. Either way I will probably stay away from the cover crop as I really am going to try to get away with not tilling again in the spring.

If we would happen to get a real nice November I may spread 2" of compost and have it tilled and then spread an application of manure and have it retilled, will just have to see how the weather goes next month.

 

[cqaigy2]

When we're putting in new garden area, we mow close then cover with cardboard/newspaper and cover that with compost to a depth consistent with what would be planted the following spring, say 6 or more inches. As someone said in a prior post, try to keep your unplanted areas covered with cover or green manure crop. We use buckwheat for quick cover around 30 day turn around and annual rye for over wintering. Remove the rye before it seeds.

Have fun with your garden and try not to have your tomatoes cost you too much.

 

[Duffster]

I don't think the cover crop is a good idea for this area.

It seems it would be best to leave the ground bare for the winter.

 

[RobertN]

I'll put in a plug...

Check with your local Master Gardeners. They could tell you. They are volunteer gardeners who work with the state Universities and AG extensions(My wife is a Master Gardener).

The could tell you how much, when, and what to do for your local area.

Welcome to the Wisconsin Master Gardener Program

I don't think the cover crop is a good idea for this area.

It seems it would be best to leave the ground bare for the winter.