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OfflineLaChoy
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Reuse soil?
    #660895 - 03/02/13 11:07 PM (11 years, 28 days ago)

So i had to chop 3 plants that were males and now i have this soil that is full of roots. Can i reuse this soil? Can i use it strait away or compost it?  The soil is a mix of foxfarm ocean forest and light warrior. With some perlite and vermiculite.

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Offlinezzzzzz
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Re: Reuse soil? [Re: LaChoy]
    #660947 - 03/03/13 11:34 AM (11 years, 28 days ago)

Yes.

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InvisibleHawksresurrection
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Re: Reuse soil? [Re: zzzzzz]
    #661697 - 03/10/13 12:41 PM (11 years, 21 days ago)

No!  You don't want to reuse it.  The roots will start to rot, which in a closed system is not ideal.  So I use it for my outdoor beds.


--------------------
Dude she isn't as young as she use to be.

-niteowl

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Offlinezzzzzz
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Re: Reuse soil? [Re: Hawksresurrection]
    #662867 - 03/19/13 04:46 PM (11 years, 12 days ago)

Quote:

hawksapprentice said:
No!  You don't want to reuse it.  The roots will start to rot, which in a closed system is not ideal.  So I use it for my outdoor beds.




So, Hawk, what about the roots from a cut-down hermie or male in a multi-plant per pot setup?  I haven't seen any negative consequences yet from this.  Then again, perhaps it's my lack of vision that stops me from seeing?

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InvisibleHawksresurrection
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Re: Reuse soil? [Re: zzzzzz]
    #662929 - 03/20/13 06:22 PM (11 years, 11 days ago)

Or you've just been lucky.


--------------------
Dude she isn't as young as she use to be.

-niteowl

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InvisibleDrGreenThumb
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Re: Reuse soil? [Re: Hawksresurrection]
    #663032 - 03/21/13 08:48 AM (11 years, 10 days ago)

Quote:

hawksapprentice said:
No!  You don't want to reuse it.  The roots will start to rot, which in a closed system is not ideal.  So I use it for my outdoor beds.




I have to respectfully disagree here. I live in an upstairs apartment and replacing soil every time is just not practical (knee problems, hence the card). I've been re-using my soil mix for 4 crops now with no ill effects. The way I see it is if they grow good in it the first time then it should be a good medium and work again.

I have two friends who also grow. One reuses his soil and the other replaces it every time because he has read things like this online. The one who reuses his soil gets more consistent results and better harvests then the guy who replaces. The guy who replaces seems to have more problems with his plants (yellowing, nutrient lockout, smaller budz). All of our equipment is exactly the same and we share clones so it's a pretty good indicator that it has something to do with medium.

We've been reusing a 50/50 mix of Sta-Green Moisture Max and Pro-Mix BX. We fortify it every run with some lime and earthworm castings. The friend who replaces uses a 50/50 of Sunshine Mix #4 and Pro-Mix BX. He replaces his soil because he doesn't want the hassle of breaking up root balls. We take his soil (after one harvest) and either mix a little in with our reused soil or dump it outside for use in the spring.

Medium is expensive. I started with Sta-Green because it was cheaper and I'm soooo glad I did; my plants love that shit. It costs about $200 to fill 30 5gals. with medium. That's $1,200 a year. Reusing costs me much less; bag of lime and castings. Plus like I mentioned earlier, I can't haul all that dirt up and down the stairs here every 2 months.

This spring I will have had my medium for a year. All of it will be used outdoor this spring and replaced. I will reuse the new soil for another year (6 Harvests). All you have to do is let the root ball dry out, break it up in a big Sterilite tote, take the big roots out. Throw in a little lime and like 2 cups of castings per 5 gal., Mix and moisturize.

Grow medium has all kinds of bacteria, molds, trichoderma, mycorrhiza and the like in it. These are important to the the plant and feed off (break down) the old roots in the medium and convert them into useful nutrients for the plant and the microbiology in your medium. If your roots rot you have bigger problems than reusing your medium.

I see 2 large gardens and about 50 healthy ladies that say you can reuse your medium. Not everyone replaces it.


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“Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.” -Dr. Seuss

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InvisibleHawksresurrection
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Re: Reuse soil? [Re: DrGreenThumb]
    #663045 - 03/21/13 10:20 AM (11 years, 10 days ago)

And eventually they could definitely run into problems, or they might not. 


Are they using any products to help break down the roots?  Besides something like PCH biopack


--------------------
Dude she isn't as young as she use to be.

-niteowl

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Offlinezzzzzz
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Re: Reuse soil? [Re: Hawksresurrection]
    #663101 - 03/21/13 02:43 PM (11 years, 10 days ago)

Quote:

hawksapprentice said:
Or you've just been lucky.




Oh, I'm lucky, all right.  It's just that my luck normally doesn't swing in the positive direction.

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InvisibleHawksresurrection
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Re: Reuse soil? [Re: zzzzzz]
    #663102 - 03/21/13 02:44 PM (11 years, 10 days ago)

Since you can't go up and down stairs easily, have you thought of switching to hydro?


--------------------
Dude she isn't as young as she use to be.

-niteowl

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OfflineNSFWMainer
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Re: Reuse soil? [Re: Hawksresurrection]
    #665581 - 04/10/13 05:50 PM (10 years, 11 months ago)

Lol. I know the feeling dude. I know the feeling.

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OfflineAngus
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Re: Reuse soil? [Re: NSFWMainer]
    #665582 - 04/10/13 05:57 PM (10 years, 11 months ago)

Yes, you can compost it..or screen out the roots out of the soil, re-amend and reuse.

If you really feel like doing some reading on the subject; cruise on over to breedbay and check out posts by user 'HASHISH'


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I used to grow pot.  I still do grow pot, but I used to grow it too.
*Seedsharer*
You got my cheez whiz, boy?

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Offline420milehigh
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Re: Reuse soil? [Re: Hawksresurrection]
    #675746 - 06/23/13 02:17 PM (10 years, 9 months ago)

Quote:

hawksapprentice said:
No!  You don't want to reuse it.  The roots will start to rot, which in a closed system is not ideal.  So I use it for my outdoor beds.




if your roots are rotting it is because you keep your soil too moist, let it dry out almost fully before watering again... you'll get denser buds and more THC, also re-used soil has a TON of good stuff in it especially if you cycle your soil so it sits for a couple months before re-use... I also add some composted horse and chicken crap to my soil and feed the plants every week with High nitrogen bat guano in veg and high phos in bloom, my soil is HEALTHY... I honestly don't believe soil goes bad EVER


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anything I post is either a complete work of fiction or a straight up lie... don't believe anything I say


"any fool can criticize, condemn and complain... and most fools do" Benjamin Franklin

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InvisibleHawksresurrection
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Re: Reuse soil? [Re: 420milehigh]
    #675853 - 06/23/13 10:31 PM (10 years, 9 months ago)

You are not understanding what I said.  The roots from the old system are going to rot and decay, regardless of how much you water it. 

You're beliefs are you're beliefs.  There are ways to reuse the soil, and recycle them.  But it's different from just replanting in the same soil again and again, without doing anything to it.


--------------------
Dude she isn't as young as she use to be.

-niteowl

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OfflineSmokeSomeHash
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Re: Reuse soil? [Re: Hawksresurrection]
    #675891 - 06/24/13 07:16 AM (10 years, 9 months ago)

Compost it.

I get lazy and replant every now and then...sometimes it works...sometimes it doesn't

For sure though its not as good as fresh soil.

I use a 55 gal compost tumbler to compost my soil for like 2-3 weeks before re using...longer in winter.

I recharge it with more compost but again...takes a few weeks to do it right. I usually dump em into my outdoor beds like hawk.

Does more good in the ground anyways where the worms can break shit down faster.


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Offline420milehigh
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Re: Reuse soil? [Re: Hawksresurrection]
    #675898 - 06/24/13 08:46 AM (10 years, 9 months ago)

Quote:

hawksapprentice said:
There are ways to reuse the soil, and recycle them.  But it's different from just replanting in the same soil again and again, without doing anything to it.



I do agree it isn't smart to just keep re-planting in the same soil time after time, without doing anything to the soil... but nutrients don't rot so I do a "lazy" compost I guess, and it works great for me JMHO


--------------------
anything I post is either a complete work of fiction or a straight up lie... don't believe anything I say


"any fool can criticize, condemn and complain... and most fools do" Benjamin Franklin

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Offline710dillweed
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Re: Reuse soil? [Re: Hawksresurrection]
    #695916 - 11/28/13 03:19 AM (10 years, 3 months ago)

if u re amend your soil with fungi/bacteria or can create a living soil like outdoors u can reuse it a few times...trichoderma and enzymes break down dead roots and other waste and turns it into food... I recommend trying a living soil it takes time to create but u would be surprised how awesome it is.. www.biotabs.eu is my sponsor in Holland look into it

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Offline710dillweed
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Re: Reuse soil? [Re: Hawksresurrection]
    #695917 - 11/28/13 03:32 AM (10 years, 3 months ago)
Log in to view attachment

there are ways to make soil better with age. if u don't use synthetics u can... I don't like explaining but if ur interested look into it...symbiotic relationship with all bacteria/fungi/enzymes/fulvic and humic acids...all waste is converted to food

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OfflineDoc
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Re: Reuse soil? [Re: 710dillweed]
    #701557 - 12/22/13 07:29 PM (10 years, 3 months ago)

I've reused soil, both by sifting it out and just straight repotting with fresh roots in there, the roots do rot, but I always figured since I've never had soil or root diseases that the rotting of the roots would actually provide ideal material for the new roots to use to grow. I don't know if this is true but it would seem like if any bacteria broke down the roots that the new plants would use all those carbs and whatever else is in those roots to grow. But there may be noxious gases and other wastes that harm your plant. I actually just repotted on into a bucket full of used peat and perlite without even breaking it up or sifting it, the plant is doing horrible...so I definitely won't recommend it unless your in a pinch. One thing to consider is flushing the old soil with some Dawn, or other dish soap that is mild and free of chemicals, or a proper flushing agent if you really have to reuse it.


--------------------
No one is free when others are oppressed

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OfflineNaturesWayGenetics
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Re: Reuse soil? [Re: zzzzzz]
    #786086 - 07/20/15 12:21 PM (8 years, 8 months ago)

Quote:

zzzzzz said:
Quote:

hawksapprentice said:
No!  You don't want to reuse it.  The roots will start to rot, which in a closed system is not ideal.  So I use it for my outdoor beds.




So, Hawk, what about the roots from a cut-down hermie or male in a multi-plant per pot setup?  I haven't seen any negative consequences yet from this.  Then again, perhaps it's my lack of vision that stops me from seeing?



I'm going to have to disagree with anyone who says soil can't be reused! This is pure nonsense.
If you couldn't reuse soil, would the earth and all that had lived on it be dead? NO because Root Decay is an essential part of the life cycle.

To Reuse your soil and soilless mediums, Simply Compost it for a month at a temp of 70 degrees Fer. with all the usual amendments that you put in your soil along with lime to help break down old roots and buffer the soil for an easier to manage PH %
I realize that since this post was started a lot has changed in Marijuana cultivation.
But let's stop the spread of misinformation on this and all other Canna related sites. Some People are New to growing and want responsible and correct answers to their questions. These types of sites are known to be filled with way too much mis-information.

Please Respond to my poll on this subject
Reuse Soil ?
Users may choose only one (5 total votes)
Do you agree with my post
-
5 100%
Do you Dis-agree with my post
-
0 0%
Votes accepted from (07/20/15 12:00 PM) to (07/20/16 09:13 AM)
You must vote before you can view the results of this poll.

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OfflineSmokeSomeHash
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Re: Reuse soil? [Re: NaturesWayGenetics]
    #786087 - 07/20/15 12:33 PM (8 years, 8 months ago)

Great first post. I reuse soil, coco, even rockwool. So does our local university. 70 degrees is low though. Properly made compost needs to be hot enough to kill harmful bacterias. I have my compost bin out in the 100 degree sun right now and the internals get up to like 160.

A great organic potting mix is 1:1:1 coco, perlite, compost so anyone saying re used soil will rot containers just isnt doin it right.


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InvisibleMycophile
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Re: Reuse soil? [Re: SmokeSomeHash]
    #786089 - 07/20/15 12:42 PM (8 years, 8 months ago)

Yes, soil can be reused. Some of the best indoor growers I know reuse their soil and they say it gets better every time. It's not easy though. I know 1 guy who literally takes a screen and sifts all the roots out of the soil, which can take a loooong time if you got a good sized grow going.

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InvisibleHawksresurrection
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Re: Reuse soil? [Re: NaturesWayGenetics]
    #786351 - 07/23/15 12:12 PM (8 years, 8 months ago)

Quote:

NaturesWayGenetics said:
Quote:

zzzzzz said:
Quote:

hawksapprentice said:
No!  You don't want to reuse it.  The roots will start to rot, which in a closed system is not ideal.  So I use it for my outdoor beds.




So, Hawk, what about the roots from a cut-down hermie or male in a multi-plant per pot setup?  I haven't seen any negative consequences yet from this.  Then again, perhaps it's my lack of vision that stops me from seeing?



I'm going to have to disagree with anyone who says soil can't be reused! This is pure nonsense.
If you couldn't reuse soil, would the earth and all that had lived on it be dead? NO because Root Decay is an essential part of the life cycle.

To Reuse your soil and soilless mediums, Simply Compost it for a month at a temp of 70 degrees Fer. with all the usual amendments that you put in your soil along with lime to help break down old roots and buffer the soil for an easier to manage PH %
I realize that since this post was started a lot has changed in Marijuana cultivation.
But let's stop the spread of misinformation on this and all other Canna related sites. Some People are New to growing and want responsible and correct answers to their questions. These types of sites are known to be filled with way too much mis-information.

Please Respond to my poll on this subject





Did you even read the entire thread?


--------------------
Dude she isn't as young as she use to be.

-niteowl

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OfflineSmokeSomeHash
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Re: Reuse soil? [Re: Hawksresurrection]
    #786363 - 07/23/15 05:36 PM (8 years, 8 months ago)

Who cares? This thread is like two years old and he barely puts a poll.

:shrug:


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InvisibleMycophile
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Re: Reuse soil? [Re: Hawksresurrection] * 1
    #786370 - 07/23/15 06:39 PM (8 years, 8 months ago)

Quote:

Hawksresurrection said:
Did you even read the entire thread?




Why would we not want as many opinions on this as possible?

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InvisibleHawksresurrection
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Re: Reuse soil? [Re: Mycophile]
    #786384 - 07/23/15 09:04 PM (8 years, 8 months ago)

Quote:

Mycophile said:
Quote:

Hawksresurrection said:
Did you even read the entire thread?




Why would we not want as many opinions on this as possible?





Um ok?


I made my response because he quoted only one response, and even in that response it states you can.  Then other responses I also stated that soil could be reused.  Hence my question


--------------------
Dude she isn't as young as she use to be.

-niteowl

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Invisiblecaptain.koons
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Re: Reuse soil? [Re: Hawksresurrection]
    #789323 - 08/12/15 04:34 AM (8 years, 7 months ago)

Soil can be reused. Soilless can also be reused but I most definitely don't recommend that as peat breaks down it becomes more dense which means it's going to hold less air. People do reuse their peat with success too.

Hawk is correct as far as the roots go. They will rot and will be a breeding ground for anaerobic bacteria. Which will further cause root rot in your next crop.

You would want to remove as many roots as possible but screening/sifting isn't necessary if you use an enzyme product and or AACT (actively aerated compost tea, this is going to have a ton of bacteria that will be helpful in the breakdown of roots, and will also insure you have a healthy soil microbially speaking). Application of either will speed up the breakdown of roots and will use them to the benefit of the soil (by them becoming bio-available nutrients).

You also need to replenish the soil of nutrients and minerals. This can be done with a blend of lime (for pH), kelp (K and trace minerals), alfalfa meal(N-mostly, P, K, and trace minerals), etc. I believe people use something like 1/3 of a cup lime, and a full cup of kelp and alfalfa per cu ft of soil with success. There's a lot of factors that will come into play such as pot size, strain and even phenotype selection, veg time, and even light intensity which will determine how many nutrients your plants will make use of in the course of their life time.

One method I've used in the past to reuse soil is to use 1/2 fresh soil and 1/2 reused soil using "minimal" amendments. The soil overall would be a bit lighter on nutrients but the cost overall is greatly reduced. There's also a lot less guess work. I'm not a soil person but this would be a great start to reusing your soil. As you gain a feel for it you could use less and less fresh soil. Personally I use coco coir as my growing medium or other hydroponic mediums, I can reuse coco for years but choose to buy new coco each spring and take the old stuff outdoors.


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TROLLS NEED LOVE TOO!

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Invisibleoeric mckenna
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Re: Reuse soil? [Re: captain.koons]
    #789330 - 08/12/15 06:13 AM (8 years, 7 months ago)

Aact is the bomb. One more reason im loving my fully organic setup.
Its a bit of work but watching the plants respond has made me happy


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***Handing someone your life's work....in a single seed = :laugh: ***

HIGHER THAN A GEORGIA PINE

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Invisiblecaptain.koons
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Re: Reuse soil? [Re: oeric mckenna]
    #789335 - 08/12/15 06:53 AM (8 years, 7 months ago)

I love organic buds but with soil I get half the yield I do growing with coco. The bugs too, I can't stand bugs in soil. The quality difference for me is minimal especially with resins. I'm done with indoor soil. Aquaponics is the future.


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TROLLS NEED LOVE TOO!

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