Myth-Busters "Challenge" Tomatoville-style - - CONFIRMED or BUSTED

[rnewste]

When I called my friend Jamie, up in Alameda, suggesting they should do a segment on “Tomato Myths – Confirmed or Busted”, I was met with thundering silence. His only response was: But Ray, tomato myths aren’t “Show” (Hollywood-speak for low audience interest - - no explosions or cars crashing into each other).

So, in the true spirit of Myth-Busters, I am going to put half of my tomato crop in jeopardy this year. Having visited the Galapagos, and Fanning Island in the remote South Pacific, I have always been impressed with Natural Selection in flora and fauna. So what better way to experiment doing “A/B” comparisons than with identical tomato plants in a controlled eco-system like an Earthbox.

As I am doing the “Noah’s Ark” thing this year (2 identical plants per one EarthTainer) I can precisely control variables such as: water availability, growing-media uniformity, fertilization, sun exposure, such that I can keep everything constant, and change only one variable at a time. This is something difficult to accomplish with in-ground planting.

Now for the “Challenge”. I have 12 containers that will contain two identical plants, with a divider isolating the plants from each other (see photo below). Each plant will have identical access to water through the wicking basket; both plants will be in the same amount of Miracle Grow Potting Mix with Moisture Control (except Myth # 7), and both plants will have identical exposure to the Sun. I have come up with 9 of the 12 “A/B” experiments, and need your help suggesting another 3.

Now for the Myths - - Confirmed or Busted!!

1). Aeration Screen – few holes vs. lots of holes. Victim: JD’s Special C-Tex

2). Fertilizer – strip vs. ring around plant. Victim: Purple Haze

3). Epsom Salts vs. Dolomite as a supplement. Victim: Earl’s Faux

4). Wall-O-Water vs. none. Victim: Paul Robeson

5). FoxFarms fertilizer vs. TomatoTone. Victim: Stump of the World

6). Gypsum added to potting mix vs. none. Victim: Goose Creek

7). Miracle Grow vs. Sta-Green with Moisture Control. Victim: Ed’s Millennium

8. Battery toothbrush assist vs. natural pollination. Victim: Brandywine Sudduth

9). Single stem vs. two stem plant to assess productivity. Victim: 1884 Purple

10). ________________________________________ Victim: Stupice

11). ________________________________________ Victim: Dona

12). ________________________________________ Victim: Cherokee Chocolate


Let's have some fun!!


Ray

[dcarch]

should be very interesting.

Here are two you can try:

1. put a reflective aluminum panel behind one, so one plant gets light from front and back.

2. I often wonder if thicker stem will give you more production:
http://www.tomatoville.com/showthrea...hlight=thicker

dcarch

[rnewste]

2. I often wonder if thicker stem will give you more production:
http://www.tomatoville.com/showthrea...hlight=thicker

dcarch[/quote]

This is my intent with Myth #9 by comparing a (stronger) single stem plant, to a (skinny) multi-stem plant, to see which configuration will produce more tomatoes.

Ray

[natural]

How about the IRT Red Mulch test (supposed to increase yields by 20 percent). You can now buy individual 3' by 3' squares of this from garden supply catalogs.

Bill

[rnewste]

Craig,

In growing tomatoes here in N. California, I have never used a Fungicide in 25 years. Hopefully, with the tomato plants now "above ground" in their EarthTainers, I should experience a further reduction from exposure to soil-borne diseases.

Bill,

What is the "science" behind the 20% increase in yield with red mulch? If it is reflective based, the small surface area in an EarthTainer would probably not have any effect. It would seem you would need a large reflective area out around the plant to have any meaningful impact. Right? (But I will be happy to try the experiment if you think I should).

Ray

[nctomatoman]

How about daconil vs no daconil?

[robin303]

Ray, what about different pruning methods.??

[rnewste]

Robin,

Good suggestion. I think it was Ami who had posted pictures of his pruning method. Maybe he can suggest the "A/B" pruning approach I should use.

I also need to have Morgan give me a "brush-up" on how best to use the vibrating action of the toothbrush in the flower.

Ray

[carolyn137]

What is the "science" behind the 20% increase in yield with red mulch? If it is reflective based, the small surface area in an EarthTainer would probably not have any effect. It would seem you would need a large reflective area out around the plant to have any meaningful impact. Right? (But I will be happy to try the experiment if you think I should).


*****

Clemson U was the place where the red plastic mulch was developed and tested and it was for commercial gardeners who grow determinate type plants.

I was present at the NE fruit and vegetable conference when they made their first presentation.

Initial results did show around a 20% increase but since then almost everyone agrees that 10% is more like it.

And you have to have lots of room on all sides of the plant for the red stuff to see any result at all.

So.......you've got a plant that normally gives you 20 tomatoes and maybe you get two more withe red mulch.

is it really worth it? I don't think so. Not considering such a modest increase as opposed to the cost of the red plastic.

[rnewste]

Carolyn,

Thanks, this confirms that a large reflective area (commercial growers) is needed for effect. The relatively small mulch area of an Earthbox wouldn't give the desired result.

TomatoDon,

The assembled cost (out of pocket, not valuing my time at all) comes out to $25.00 for the containers and hardware, $12.50 for the EarthBox Company's Automated Watering System, plus $14.00 per container for 78 quarts of Miracle Grow Potting Mix.

Offsetting this is that I will NEVER have to pick up a hose to manually water again, and NEVER have to weed again, and NEVER have to run that cantankerous Rototiller again. For me, this has been a very worthwhile expenditure.

Anybody want to buy a (used) rototiller CHEAP??

Ray

[amideutch]

Ray, I would suggest using Mycorrizae on one Plant when planting in your EB and treat both plants the same otherwise. If your going to use a fertilizer strip make sure the P (Phosphorus) is no more than 3. Ami

[dcarch]

One more:

Using same everything, except:

One container has one plant and comparing with one container with two plants.

Which container produces more tomatoes ?

dcarch

[rnewste]

Rats!! So now I've got to build 25 EarthTainers instead of my current build plan of 24, to now house the single "orphan" control plant. I have three candidate varieties of which I have 3 seedlings each now growing: JD's Special C-Tex, Purple Haze, and Earl's Faux. So, which variety would you choose for the "2-on-1" yield experiment??

Ray

[TomatoDon]

This is priceless. Absolutely classic!

Cost of potting soil and tomato seed: $500. Cost of 12 DIY EB's: $300. Cost of digital camera to record everything: $400. Ray taking on Hollywood in a tomato myth-busting demonstration. PRICELESS!!!

If Hollywood can't do it, Ray can! This is going to add trememdously to the fun and education here in 2008! I'm increasing my DSL speed just for this!

Don

[TomatoDon]

I tried red plastic mulch in 2007. Once the plants are big you can hardly see the plastic, unless you have a really big piece of it, such as covering the whole bed. Doesn't look too great either. I'm guessing this is another one of those things that works in theory and at a research station, but is not all that practical for the real world.

Just my opinion, but I won't try it again.

Don
BTW Ray, I think there is a web site still floating around out there somewhere that gives a detailed scientific angle on it. I think that's where I got the idea, but after my own test, I saw no practical value to it.