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Terracycle Challenge - Day 20

Terracycle Challenge Day 20

We are certainly overdue for a TCC update. I want to make sure people don’t assume I’ve thrown in the towel!
:-)

The picture above provides a pretty good overview of the results so far. Here again are the label codes just in case you need a refresher or are just joining us:

TC - Terracycle
WC - Worm Compost
C - Control (water only)
MG - Miracle-Gro

Definitely some interesting observations thus far! Initially it was looking as though the TC-only plant was going to grow about as well as the control, but it has gone gangbusters recently and is starting to gain on some of the multi-treatments. Worm compost (WC) on the other hand has not proven itself at all - at least not when used alone. The WC plant has made only slightly more progress than the control thus far - unless we see a sudden surge of growth in the home stretch, it will definitely come in dead last as far as treatments go.

The WC/MG plant was the largest and healthiest looking of the bunch, but very recently the all-inclusive (WC/TC/MG) plant has experienced a serious growth spurt and is looking like it might put all the others to shame.

Another interesting note about plants grown with worm compost (including those in the “Jr” challenge) - most of them are a much lighter green colour than the rest of the plants. I’m not sure what to make of that.

Speaking of the TCC Jr challenge - nothing overly exciting to report there. Most of the plants are quite similar in appearance (aside from the light green colour of the WC plants).

Some other important things to mention. I’ve decided to take an even more laid back approach to my already laid back methodology. Now that the plants are getting much larger and we are encountering another serious hot-dry spell, I’m finding that they are needing a lot more water. As such, I’ve decided to opt for a thorough soaking approach vs an exact amount of water (it would take WAY too long if I had to measure out exact amounts of water every single day). I figure as long as I make sure they all have as much water as they need it shouldn’t be an issue.

When you think about it, exactly measured quantities make no sense at this stage anyway, since some plants are going to require a lot more water than others (because they are much larger and growing more quickly).

The only concern this raises is the potential for washing out the Terracycle doses. When it comes down it, I’m really not going to be able to compare the results of MG vs WC vs TC anyway, since a stick of MG will undoubtedly offer FAR more nutrients than periodic waterings with TC or a small quantity of WC. If I was using ONLY Terracycle (ie no water) for the TC treatments it might be a bit more of a realistic comparison, but unfortunately that would cost me a small fortune! (haha)

What I’m really interested to see is how the different combos compare to one another and to the control. So far it has certainly been fun to watch how each of the plants has grown!

Anyway, thats all for now! Stay tuned for more updates!

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Written by Bentley on August 1st, 2007 with 6 comments.
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Get your own gravatar by visiting gravatar.com rethinkable
#1. August 2nd, 2007, at 1:43 AM.

wow, this is looking good.

I didn’t realize that Miracle Grow is in the race as well. What I find interesting though is that MG and TC seem to compliment each other. Since both plants with just MG or TC are very similar in size, deos that mean, if you simply add double the amount of TC or MG the plant would be as large as the one that has MG and TC? Sounds kind of iffy to me.

What are some of your thoughts?

Cheers,

Hans (rethinkable.com)

Get your own gravatar by visiting gravatar.com Bentley
#2. August 2nd, 2007, at 2:43 AM.

Based on what I’ve read, worm compost (and thus presumably worm compost tea - ie. Terracycle) works best when combined with standard fertilization - so I’m not too surprised to see some of the mixes working well together (still really cool to see it firsthand though).

That’s an interesting question about doubling the amount of TC used. I would not be surprised at all if growth matched MG or even TC/MG (as you mentioned, they are already fairly similar in size). I’m actually really suprised that the TC (alone) treatment is growing as well as it is given the fact that it only gets fertilized once a week (regular waterings might also be washing some of the TC out of the soil in those treatments).

Of course, there is really only so much that can be concluded from this experiment (if you can even call it that) in general given the fact that there is only one rep for each treatment!

Oh well - really interested to see how it turns out anyway (and already thinking about future follow-up experiments)!

B.

Get your own gravatar by visiting gravatar.com Alison
#3. August 17th, 2007, at 6:36 AM.

Hi Bentley,
Are you able to gently support the inverted pots and allow the plant to be supported between your index and middle fingers and allow the plant and soil to come out into your hand so that you can see the roots?

Get your own gravatar by visiting gravatar.com Bentley
#4. August 18th, 2007, at 5:02 AM.

Hi Alison,
I must admit to feeling a little confused by your question. Are you suggesting I compare the root structure of all the plants as well?

B.

P.S. By the way - I’m hoping to get another update, along with my challenge post mortem up in the next few days

Get your own gravatar by visiting gravatar.com Alison
#5. August 18th, 2007, at 7:29 AM.

Sorry Bentley, just because I know what I mean doesn’t mean it is clear to someone else.Yes I wondered if you could check the roots and compare them and I was explaining how to protect the young plant while you do so but you probably already know how to.

Get your own gravatar by visiting gravatar.com Eddie
#6. November 17th, 2007, at 12:24 PM.

This test falls well within the competency guidelines Organic and Transitional farmers would expect. Much of the expressed confusion in your results can be explained by the microbial population taking control of the feeding of your plants. Worm Teas have an express duty in furnishing the soil with microbial populations that will take available nutrients from the soil matrix and feed your plants with them. Miracle Grow merely provides the excess nutrients, while Worm Teas provide the mechanism. It is not unusual to see systems establishing the mechanism take much longer to start, yet surpass conventionaly systems by the end of the growth cycle.

Terracycle undoubtedly has some significant benefit in stimulating the microbial population in soils, but it should be understood that much of the active mass in the tea has gone dormant or effectively died by the time the consumer recieves the product. Worm teas are far more effective if used within 12 hours of the brewing stage. This is because most of the microbial mass is aerobic, and bottling the tea sets up a situation where available oxygen is quickly depleted resulting in a massive microbial die-off.

Should you want to try the effectiveness of worm teas against all competitors, you will need to brew your own tea. It is not that hard, and the vermicompost you used in the experiment would be sufficient as feedstock. ….Freshly brew tea will surely blow all the competition away.

In conclusion, there are much better solutions to organic fertilization than the Terracycle product, but none that come to mind that will be as convenient to the consumer.

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