New garden - When to add amendments

   / New garden - When to add amendments #1  

RedDirt

Gold Member
Joined
Dec 4, 2007
Messages
469
Location
Northern Idaho
Tractor
Kubota BX23, Wards 16HP HST Garden Tractor, (previous) D2 Logging Cat
I am starting a new garden plot on previously uncultivated conifer forest ground. Our dirt is red clay with 6-12 inches of natural forest topsoil. Wife jokes if you add one cup of our red dirt to a yard of compost and come back in a weed you'll have...red dirt :).

I'd like to till and add amendments now to get a head start for next spring planting. The small 30' x 60' plot is for household vegetables. I will be adding one to two yards of each of aged oak sawdust (stump grind residue), pine planer shavings (3-8 yrs old), power line clearing chippings (2yrs old, mostly conifer), 50/50 compost/topsoil from the nursery and aged steer manure. Goal is to add some humus to the soil.

Tillage equipment is single bottom plow, single disc and lightweight framed fence-wire harrow.

My question is: During the preparation process when do I add the amendments and at what stage do I leave the ground to over-winter? We get a few inches of snow a few times a year.

My intuition says: plow, add amendments, harrow to spread and mix amendments then disc lightly (one or two passes) and leave that way until spring.

I know the conifer amendments will take a lot of nitrogen to break down so in the spring I'll soil test and add more manure as needed.

Does the tractor sequence seem right to you knowledgeable gardeners? And is the overall plan good or should I just wait until spring to add amendments?

If good, should I cover the plot this winter with 4-6 inches of this fall's oak leaves?

Thanks for any input.

Ray
 
   / New garden - When to add amendments #2  
RedDirt,

Your plan to add the amendments now is fine. I would also add some of your manure to give the microorganisms that break down the sawdust and shavings some nitrogen. I'm assuming that it isn't completely broken down. If it is, then forget the manure until spring.

I would also add the leaves. However, you will want to remove them in the spring to allow the soil to warm up before planting.

Ward
 
   / New garden - When to add amendments #4  
Don't wish to sound overly "all expert", kind of thing, but I have been truck farming, now its called gardening, for all of my 57 years.

Fall is the BEST time to do all things. I have been very buy this past month doing just what you're doing. I have plowed up an 1/2 acre area which will be next year's expansion. NOW is the time to plow, allowing the sod to rot down. It has been amazing how much rotting has occurred since I plowed on Labor Day and again this past week. This was, as yours is, virgin soil. Work it, work it, work it. I use a middle buster and disk. Now, I am at the stage where I am furrowing, that is building up long, straight furrows. Being up north here, I want the high furrows, rather than everything flat, because this will allow for quicker warming in spring, much like raised bed gardeners do.

Now is the time for lime applications to help with the acidity of conifer soils. Again, my soil is ancient pine and oak ground, so it is plenty acid. It takes a month for it to work, so if you wait until late spring, it wouldn't have time to work and your germination rate will be whacked out.

Manure would be fantastic, but I would almost wait until spring to spread it. I would get it now and make a pile. I would want it HOT, and try to kill the seeds that are in it. Keep it in a pile and add your own grass for green and leaves for brown, and keep it hot. Manure tends to import a ton of grasses and such. But you must have compost as that soil will likely be quite weak without it. Manure is worth the hassle. Pig or chicken would be superior and contains fewer seeds. Spread you aged compost in spring and rework your patch.

Wow, I have babbled on, but I love this stuff, and I know you will too!!
 
   / New garden - When to add amendments #5  
Oak

It is my understanding that the Mennonite farmers, NEVER till in oak leaves, and they pretty much wrote the book on soil improvement. Oak sawdust and oak leaves are very acidic. The would drive your ph ever more to that end. If you choose to compost oak, you will increase the need for lime even more.

Maple leaves, which, sadly, I do not have, are far superior for garden compost making.

I wouldn''t say don't use them, I am not personally going to do so, but if you do, buy more lime.:D:D
 
   / New garden - When to add amendments #6  
We use llama poop. It is very high in nitrogen and can go straight into the garden. So, if you find anyone with llamas, you might ask if you can take the poop. Llamas poop in piles, so it is really easy to 1) find it and 2) collect it.
 
   / New garden - When to add amendments #7  
We use llama poop. It is very high in nitrogen and can go straight into the garden. So, if you find anyone with llamas, you might ask if you can take the poop. Llamas poop in piles, so it is really easy to 1) find it and 2) collect it.

I have a llama lady in my neighborhood. She has offered me all I want. Unfortunately, she beds them on gravel. Two or three applications of that would turn my gardens into driveways :D:D:D:D
 
   / New garden - When to add amendments
  • Thread Starter
#8  
Thanks for all the advice so far, keep it coming. Still want to hear if my tractor sequencing is fairly correct.

Throughout 80's we had a half acre (+) vegie garden, raised goats, couple head beef, pig, some rabbits and chickens. The manure source was endless and the garden was great. Between fresh and canned/frozen we rarely bought veg, meat or fruit.

But we didn't have any tractors to speak of except an old Gibson without many implements, all done by hand, four adults, two young kids. A tad bit older now :rolleyes: and don't want to work that hard. I'm not familiar with tractor methods of gardening thus my sequencing question and if I'm using the right tool for the right job.

Fred, I certainly appreciate your experience though I was thinking similar to Ward that adding the manure now would help break down the conifer amendments over the winter. My original post stated I thought to add what I've got now, about 1 1/2yds, and then test and probably add more in the spring. The pine shavings and tree line chippings are not very broke down despite their age. These have been in uncovered piles the past few years and I hope some of the initial acidity has leached out. None the less they will take a good jolt of nitrogen the break down better.

Wish I had some of that rabbit and chicken stuff again but we're making due with whats available locally, need to do some shopping around for something hotter. A family in the valley raise llamas but that's a two hour round trip drive and I don't get that way often. Only a few families around here with horses and they garden too and are not giving up their gold.

So Fred, in light of what I've said do you still think to hold the manure until spring? I understand the weed problem but this is reportedly relatively weed free...we'll see. Also there is no initial sod here to speak of. This ground has been raked fairly clean for ten years for fire protection so there is just a thin layer of short native grass.

A winter project will be building a hiller. I've thought to have taller than "normal" rows too. For the ground warming you mention but also not quite so far to bend over doing the hand work. For this winter though the ground will just be disc level.

Odd you advise to not put in oak leaves. I've always thought they were pretty good. They surely break down quicker and easier than pine needles, our only other abundant compost makings. I'll need to do some checking on that and maybe someone else will chime in. In Oregon we had maples but not here.

Hey this is a tractor chat. What about that sequence?

Winter project may make the hiller into a hiller/cultivator combo tool and I want to build a heavier harrow. Then there's the FEL quick connect, BH thumb....on and on. Again I won't get it all done :).

Ray
 
   / New garden - When to add amendments #9  
Ray

By all means, manure your garden now. That's not a problem if you have access to a large amount of manure. Lime is ultimately important to balance the ph for decomposition. You really want/need decomposition during the 5 wintering, fallow months.

Use your tractor, as you seem anxious to do, aren't we all, to fluff that clay based soil. At this point, there is little to be gained by turning so deep that your lime and your manure end up 12" down. I would break the tension of the soil 12" down, but I would keep my manure and lime at the 6-8 inch level by disking. Does that makes sense? I have witnessed guys apply their enhancements on the surface, then mold board plow those enhancements down to the 12" level, bringing up somewhat sterile soil from the lower level to the surface. This just isn't wise.

The manure application plus the lime, will enhance the bio-mechanics through the winter. This is the level at which micro organism and larger organisms, ie earth worms and the like begin to establish an ecosystem typical of healthy soil.

I would still build a compost pile and compost the rest of the manure, lime, sawdust, leaves etc apart from the garden. If you overload the soil with more than can be effective now, it is simply going to lay on the surface. Composting heat cannot be created if the organic material is not in a proper compost pile. Organic material spread onto rather sterile soil will mostly just lay there through the winter. It doesn't have the bio-mechanic in place to do anything with it?

You mentioned earlier the thought to spread leaves over the garden, which sounded like something akin to 8" deep.

This would create a suffocating blanket brown organics, but without the means by which that brown would be broken down. My experience shows that brown leaves are still brown leaves in spring. Plus, as mentioned by another poster, that blanket can delay spring warmup.

Winter bio-mechanics are slow, slower and almost dead because of reduced temperatures. Things go rather inactive. I have seen corn stubble and vegatable stalks endure winter with almost zero decomposition when left spread in the garden. Winter temperatures slow degrading of hard matter.

Please do some research on oak leaves. Make your own decision as to using them, not using them, or using them with lime.

Best Wishes
 
   / New garden - When to add amendments #10  
Ray

A middle buster, which is a Dutch plow, potato plow, sub-soiler with blade, whatever. I strongly recommend not leaving your soil flat for the winter.

Think of it this way. The square footage of a area is let's say 10,000 sq ft.

By running high furrows through it, that area, exposed to sun, frost, rain, and oxygen, is doubled by having the corrugated effect of having deep furrow and high ridges. Perhaps, even 3 X the square footage.

Sequence? Plow. Apply organic material. Disk in to mix. Two weeks later? Disk again. Then plow up those furrows. is that enough seat time? :D:D

A middle buster is dirt cheap, pun intended. BrianR, a fellow TBN member, recently posted these photos of his furrowing of his garden, all for the same reasons. My furrows are even much more pronounced. I'll get some photo's if the rain lets up.
 
Last edited:
   / New garden - When to add amendments #11  
Bah!!! Here's that second photo.

I cannot get it to show as more than a thumbnail.. Oh well.
 
   / New garden - When to add amendments #12  
Ray (RedDirt), I think you have the sequence right, but you sure have a lot of wood chips and sawdust in your mix. I think it will suck all the available nitrogen right out of the soil and slow the decomposition process. If I were you, I'd add some heavy nitrogen fertilizer (urea or anhydrous ammonia) without weed killer and maybe even some dry molasses as complex sugars to make sure my soil stayed "hot" all winter. I just think you will find there is not enough nitrogen available to decompose all that wood material and have any left over for the plants you'll put in next spring.
 
   / New garden - When to add amendments #13  
I would definitely break ground and start adding amendments now. Test your soil now for at least the PH level so you have a starting point on what needs to be added. PH is tough to change if it is far from 'ideal' generally goes right back to where it was every year. The 'ideal' for gardens is in the area of 6.5. PH is easy to test with one of those home gardener soil kits.

I would likely go with plow, add/spread amendments, disk them in and leave it for a few weeks or the rest of the year. Depending on your weather things might break down very quickly or not at all. Use your judgment with the plow to ensure you are not 'burying' your topsoil.

Wood chips and the like I have found will eventually give you a nice black soil with good tithe... but it takes a long time. Since your area is/was forest soil I would imagine it is already pretty dark soil. I would mostly concentrate on adding organics as needed to increase the tithe and lessen the likelihood of it being hard/crusty soil when it dries out. Seems like you can never have enough compost, that stuff disappears as soon as you put it down :rolleyes:

The oak leaves I would pile or put in a bin (if in a windy area) getting them good and wet as you stack them up. They will start to break down and eventually make 'leaf mold'... a 6-12 month process. This makes great mulch to add to your garden in summer for water retention and weed control. Certain worms are also attracted to rotting leaves which is another benefit for your garden.

For fertilizer use I am getting more and more towards just incorporating it near/around the plants. If you broadcast it you are just feeding the weeds between the rows. Sometimes I use 16-16-16 a few times through the year other times, for my rows on drip, I will use Osmocote (slow release) and just put it right at the emitter.

Be super paranoid about what compost and manure you add to your garden... if it is not sterile (hot composted) you are importing yourself a lifetime of weeds :mad: For the same reason don't put weeds in your compost pile if they have already set seed and be wary of using lawn clippings mowed in weedy areas.
 
   / New garden - When to add amendments #14  
save yourself a lot of trouble and wasted labor. contact the local university extension office and pay for a 15$ soil sample test. it is the only way to really know what ammendments to add.

red dirt indicateds iron oxides in the soil. you probably do not need iron (a trace mineral available at correct pH) however the big three are in question: N, P and K. clay soils often have plenty of phosporous as it does not leach away or move very easily. potassium moves more easily and can be washed away slowly, whereas nitrogen is very soluable and may only last a season.

they will also tell you if you need lime or sulfur to raise or lower the ph. don't assume just because you have pine needles that you have acidic soil. you need the soil test (take samples from the proper plowing depth with the core tool they will give you) to know how much of any ph adjustment to add. ph change takes place slowly. don't try to guess at this as you can waste a whole year easily with not much to show. if the pH is wrong, plants will get chlorotic yellow patches from not being able to take up trace nutrients. you may also want, for example if you do have acidic soil, to leave a small patch unamended for acid loving plants like blueberrys, black berries, raspberries, etc. if you do need to add lime, you'll want to add dolomitic lime as it provides both Ca and Mg, essential nutrients for good tomatos and other garden plants.

organics are very important in clay soil to help break it up and keep it workable. you'll be adding some every year. compost is all about the C:N ratio. you likely have plenty of carbon in an old forest plot so adding leaves is questionable. plus, in a non compost pile situation, you'll have slow decomposition. in the spring, the uncomposted leaves will serve as a nitrogen sink binding up the N you add and keeping it from your garden plants until the decomposition of the leaves is complete. much better to compost the leaves with an equal amount of greens and then add next year as side dressing or as finished compost.

finally, you need at least 8-10 hours of sunlight. make sure you patch gets this minimum requirement with no tree roots coming in from the sidelines to steal water and nutrients. this often means cleaning a good 50-100' perimeter around the garden area. make your long rows north to south so sunlight can get in between as the sun moves across the sky.

good luck,

amp
 
   / New garden - When to add amendments #15  
amp's "stuff" is great, great advice.

Get a kit. Test the ph. That's the place to start, for sure. In time, your own tasting is pretty darn accurate, as the human tongue is pretty sensitive to sour or sweet. Now I went and really showed my old timey ness.
 
   / New garden - When to add amendments #16  
red dirt indicateds iron oxides in the soil. you probably do not need iron (a trace mineral available at correct pH) however the big three are in question: N, P and K. clay soils often have plenty of phosporous as it does not leach away or move very easily. potassium moves more easily and can be washed away slowly, whereas nitrogen is very soluable and may only last a season.

This is what we have in our backyard, and it's DRY shade. :(
One question about the nitrogen, the local garden center owner told me the nitrogen is "locked up" in the soil. Is this possible with it being soluable?
 
   / New garden - When to add amendments #17  
"locked up" nitrogen is nitrogen that is released as nitrogen containing objects (green leaves, dead animals, seed meals, amines, proteins, decaying organic matter essentially) decompose and slowly release it. it is available to the plants at the rate it is released.

think of urea and ammonium sulfate granular fertilizers. they easily dissolve in water and will be leached away heavily by a hard rain leaving little in the ground over time. it is not really "locked up".

whereas, chunks of decaying compost are trapped in the soil and can slow release over time right next to the plant's roots.

i use complete organic fertilizer mix which makes use of the protein of seed meals to slow release ammonia-like compounds as it decomposes. you can really smell the ammonia when you open a half used bag of cottenseed meal!

amp
 
   / New garden - When to add amendments
  • Thread Starter
#18  
Great info guys! Thanks. I'll give all this the attention it needs and reply in kind later. At midnight last night I had spent 19 of the previous 26 hours fixing wife's computer :eek: :eek: and now I am way behind work for pay vs. work for fun.
 
   / New garden - When to add amendments #19  
Fred

"Beaver Creek: Not quite the middle of nowhere, but you can see it from here".

not so, Pretty area, as I recall it is first or second knuckle, middle finger as Michigan folks show you where they live :)
 
   / New garden - When to add amendments #20  
not so, Pretty area, as I recall it is first or second knuckle, middle finger as Michigan folks show you where they live :)

Thanks. We love it. Actually, Beaver Creek is a "double" township, instead of being 6 miles square, it is almost 6 x 12 miles. Yet, only 1700 people. We only have two registered businesses. We even "lost" our country store, The Creek, to closure. Gotta drive a longish way to get just about anything. Like I said, we love it.:D
 

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