Cucumbers Grown in the AeroGarden? - Episode II (Return of the Cuke)

Peat's picture

Tags: 

Episode II

I have already grown cukes in the AeroGarden, they produced only 10 in 22 weeks. It was not a very productive grow and was beset by problems, shrivelling cukes and dry/brittle leaves. The plant was only able to produce two at any one time, what the problem was is hard to pin down - possible nutrient issues (not exactly sure of the correct feed for this plant), lack of light or, that the AG was just too small to contain this large plant?

The original grow is here, have a read through and Episode II will make more sense.

The cukes I will be growing are all female (no pollination required) and are Thompson & Morgan Zena F1 Hybrid. They will be grown in my modified Classic with an AG6 pod, rockwool, air stone and using the General Hydroponics 3-Part Flora Series nutrients.

Thanks to Beth, she has given me a table of the nutrients required to grow cukes. They are from the book Hydroponic Food Production by Dr H.M. Resh

PPM Levels

 NH4   NO3    PO4     K         Ca        Mg       B          Fe        Cu        Zn        Mo

128      3          27        175      100      20        0.3       0.8       0.07     0.1       0.03 - Seedling

267      7          55        350      220      40        0.3       0.8       0.7       0.1       0.03 - 10 days until 1st fruit set

255      7          55        400      200      45        0.4       0.8       0.1       0.33     0.05 - Maturity

After much number crunching using the GH calculator, I have come up with the following feeds which have been adjusted for the AeroGarden.

N        P          K         Ca        Mg      

130     27       166       25       21 - Seedling (AG Dosage - Hardwater Micro 7mL, Grow 7mL, Bloom 2mL)

267     55       349       51       45 - 10 days until 1st Fruit set (AG Dosage - Hardwater Micro 14mL, Grow 15mL, Bloom 4mL)

256     55       395       40       46 - Maturity (AG Dosage - Hardwater Micro 11mL, Grow 19mL, Bloom 3mL)

This is pretty close, note the low calcium levels! I'm using hardwater micro, this has little calcium in it - what I will be doing is using some hydroponic calcium supplement to bring this level up.

Let's see if Resh's formula and my extra calcium can solve the problem...

 

 Weekly Grow Pictures

Week 0 - Starting Week, Sunday 24th May 2009)   3 Days Growth   Week 1   Week 2   Week 3   Week 4   Week 5   Week 6   Week 7   Week 8   Week 8 Cukes   Week 9 Harvest   Week 10   Week 12   Week 12

 

Miscellaneous Pictures 

Week 3 + 3 Days - First Cukes Emerging

 

 

0
No votes yet
Peat
Peat's picture
Offline
Last seen: 9 years 2 weeks ago
Joined: 2008-10-27 13:13
I was happy with the five

I was happy with the five cukes, which was enough for us two, but really wanted more; greedy huh.  Total harvest remains unknown unfortunately, I sort of lost track with my cuke counting...

Not being a pro cuke grower, should these plants not produce quite a number?

Judith - the calcium is a proper hydroponic product, you can find it online or perhaps in your local hydro store. Mine was made by Canna which is a big name in hydro.

I only did the calcium because my FloraMicro was for hardwater, it contained little calcium because my water was supposed to augment the shortfall. I've now switched to the 'normal' FloraMicro which contains more calcium, I'm hoping not to add any more additives over and above the Mato & Micro.

Beth - lets hope the FloraMato is all it's cracked up to be...

Orlando Jude (not verified)
Peat:  where did you get the

Peat:  where did you get the calcium?  I just might have to try this. 

Thanks.

Beth11
Beth11's picture
Offline
Last seen: 1 year 11 months ago
Joined: 2009-01-21 20:51
Hi Peat,   That sounds

Hi Peat,

  That sounds promising!  I'd settle for 5 cucs at a time.  Maybe I'll go with this formula and let you try the floramato!

Beth

 

 

 

 

Ginger
Ginger's picture
Offline
Last seen: 1 year 2 months ago
Joined: 2008-06-23 15:55
Welcome back!!! Actually, 5

Welcome back!!!

Actually, 5 cukes on a vine at the same time is pretty good! Any idea what the overall harvest count was?

Moderator. Author of Indoor SaladEcigs 102, and the Calm Act climate apocalyptic series.

Peat
Peat's picture
Offline
Last seen: 9 years 2 weeks ago
Joined: 2008-10-27 13:13
Thanks. Last picture was of

Thanks.

Last picture was of week 12, I did not take anything more after that - it was pretty much the same as previous weeks.

Orlando Jude (not verified)
WooHoo!!!!   SO glad to see 

WooHoo!!!!   SO glad to see  you back!

Did you take pictures of the plant?   See you over at III.

Peat
Peat's picture
Offline
Last seen: 9 years 2 weeks ago
Joined: 2008-10-27 13:13
Week 6, 7, 8, 9, 10 &

Week 6, 7, 8, 9, 10 & 12

Sorry for the delay in finishing this grow off.

Week 6 -  I removed the AG light hood and gave the cuke my full 125w CFL, the EC was shifted to 2.6

Week 7 - Forming cukes doing very well, some leaves dying off.

Week 8 - Six decent sized cukes about ready to harvest, older leaves dying off as before; new leaves doing well.

Week 9 - Four cukes picked.

Week 10 - Another cuke removed, same problems with the leaves as cuke grow number 1 but to a much lesser extent. Older leaves become brittle, develop brown spots and wither away, new growth still does fine.

Week 12 - More cukes picked.

 

After week 12 I continued the grow until week 16 picking cukes as it went along - I kept the pH at 5.5 and the EC at 2.6 and carried on the Calcium supplement of 6mL

Conclusion?

The plant has done much better on Resh's formula than the normal 3-part Flora mix in the original grow ( www.aerogardenmastery.com/drupal/content/cucumbers-grown-aerogarden), although I did change the light...

However, the leaves have still become brittle as before, but to a much lesser extent. The plant has only been able to sustain a maximum of 5 cukes at one time, any further cukes will shrivel up.

So, it's done much better but not great... I would have liked a mass of cukes hanging off! 

I guess the next step is to try a completely different nutrient, one that's designed for flowering/fruiting - so, I'll run cuke experiment number 3 with FloraMato which I have heard good things about.

See you over at aerogardenmastery.com/drupal/content/cucumbers-grown-aerogarden-episode-iii

Ginger
Ginger's picture
Offline
Last seen: 1 year 2 months ago
Joined: 2008-06-23 15:55
That definitely sounds like a

That definitely sounds like a worthy experiment. My potted cuke indoors looked very close to working, just for want of a little bit more light. Might have even managed it by switching out to fresh bulbs, in my case. (But I was in it for the cukes, not the experiment. )

Moderator. Author of Indoor SaladEcigs 102, and the Calm Act climate apocalyptic series.

Orlando Jude (not verified)
Outside cuke plants bit the

Outside cuke plants bit the dust -- full of ants.  Haven't started anymore yet. 

Inside Classic cuke bearing again.  Has one almost ready to harvest.  Lots more babies tho.  This is very slow production, and probably not worth the energy.  May add a light and see if that revs things up tho.  Worth the added experiment. 

Orlando Jude (not verified)
Sort of.  He said he could

Sort of.  He said he could only get a liquid variety and it suggested adding micro.

 

Hey Peat!  Can't wait for you to return!

Pages

Log in or register to post comments