Amorphophallus-Forum.de

Hello Stephen,

I'm always been thrilled, when it comes to the topic of fertilization when plants holder at all, remember to fertilize...

0.07%, Which I here several times already recommended in the forum for a Fertigation at every casting, go back to the practice of the gardeners in the ornamental plant construction Institute of the University of Hannover, that delight your Phalaenopsis with this concentration at each casting; What fertilizers they take just escapes me, but it will be a not too powerful.
I have simply adopted the Konzentraion without questioning the great; I have been using that have made up the links below now once.

If you want to go to play it safe, you can go down to 0.05%.

Depending on the witterungsbedingtem water requirement, you can also adjust the concentration. To what is left in the post of the first...

I would solve the different Düngeintervalle and nutrient needs for the species mentioned by friends about the selection of the fertilizer.

You can set the irrigation fertilizer concentration certainly about the conductivity if the water has always the same conductance.

If you like, can fly once the posts behind the following links...
But this must be not too thoroughly, but you want to show only simple, that you can with +/-0.05% sure nothing wrong makes...

Happy fertilizing, Bernhard.

http://www.hortipendium.de/Bew%C3%A4sserungsd%C3%BCngung

http://www.hortipendium.de/N%C3%A4hrl%C3...Cr_Topfpflanzen

http://www.plantafert.com/service/duenge...oinsettien.html

Pot carnations 0.05 - 0.06 %
http://www.Landwirtschaft.Sachsen.de/LAN...ianthus2_09.PDF

Conductivity Geberauchs-and stock solutions
http://www.plantafert.com/images/stories/PDF/EC-ferty.PDF

Wuxal top K Fertigation
http://www.manna.de/ProFi/Produkte/PDF/wuxal_top_k.PDF

Hummingbird Bush 0,05 - 0,075% Flory 3 (15-10-15)
http://www.LWG.Bayern.de/Gartenbau/zierpflanzenbau/12043/

I'm a fan of Fertigation , distinguish between different plants from different families with different growth but not so much. Have because in recent months/years, so my personal fertilizer concentrations tested, validated and applied.
I go here not to the concentration, but according to the EC value in stormwater (i.e. almost 0.0 mS/cm seed). Usually, I pour each plant at each casting with an EC value of 0.8-1.2 mS/cm. This results in an EC value of 0.8 mS/cm pretty much exactly at 1 g / l or 0.1% for my normal crystalline form with a NPK 20-20-20 fertilizer. I have however Wuxal NPK 8-6 in use for my tropical Amorphophallus. As I pour it with an EC of 1.0 mS/cm. This corresponds to 2 ml / l and 0.2%, respectively.
This rule applies to all my plants, i.e. Amorphophallus, Passionflowers, Musa/Ensete, and citrus. Whether you are outside or indoors, on a heat mat or in small or large pots with different nutritious and I must say, so far I very well "drove". Been application this 1.0 mS/cm rule registered no deficiencies, Versalzungen, or Überdüngungen. The gains when the tubers were really satisfactory, and as you can see at my year's konjacs, individual plants in the right substrate to tolerate even higher concentrations or smaller intervals

HI Maria,

can you recommend a conductivity meter?

Can something be enough?
http://www.eBay.de/ITM/EC-Messgerat-mete...=item2a1f5c8072

Or should it be somewhat in that direction?
http://www.eBay.de/ITM/320553303288?ssPa...984 m1438. l2649

Or even high-quality?

Regards, Bernhard.

Hi Bernard,

an automatic temperature compensation is necessary in any case. So that is the first ever out. Such instruments shall apply in General, the expensive the better. I can not say unfortunately from what price, the P/L ratio is good, friends.

A friend has recommended me anyway this device here: http://www.ebay.de/itm/Hanna-EC-Taschenm...=item563d5ad00e

The price is obviously excessive. The manufacturer should be but good, therefore you could take this cheaper model if the purse should go on strike

http://www.eBay.de/ITM/EC-meter-Hanna-di...=item2c658a2fe9

For the beginning (does not apply so for you ) do you need but actually no conductivity meter. If you know the conductivity of rainwater and tap water, you can count out well the EC value using the package inserts

Hi Bernard,

I have the cheap from your first link. It works. How accurate it is, I can not tell of course, since I have no comparison device.

Andreas

Hello of Andreas,

Thanks for the hint.

What does because your device for your tap water?
The analysis for your tap water with conductivity should be to find water on the Internet page of Deienes.

The search for a calibration solution on the www is not really befriediegend right off the bat... After some searching...

Here:
http://www.judys.riffaquaristik.at/Rezep...zloesungen.html
specify:
"salinity 35 & conductivity 57.1 mS/cm"
37.25 g dry salt in exactly 1 litre biedestilliertem mix, this solution has a salinity of 35 and a density of 57.1 mS/cm at 25 ° C then."
You would have when taking it very well, probably chemically pure salt (without such as anti-caking agent) and dilute appropriately to get into the measuring range of the instrument.

Here:
http://www.zierfischforum.at/viewtopic,p,487858.html
a further guidance:
"take one liter of distilled water and throws 5, 55 g NaCl (table salt) is as accurate as possible. So you now have a solution with 10mS/cm (10000µS/cm)
Then just 10 ml of the solution with another 90 ml of dest. Mix water and you have 100 ml 1000µS/cm calibration solution."

Here:
http://www.aquariumforum.de/f68/rezeptur...geraeten-81808/
There are still details how to create a calibration solution with KCl itself.

Happy DISP, Bernhard.

look here:

http://www.eBay.de/ITM/18-15-100ml-EC-Ka...=item53f09a926f

is however not very cheap

Hello Ronny,

Thanks to i-Bah I had not thought of in this case.

Yes, this is a 3 molar KCL solution, which apparently has a conductivity of 1413 µS/cm.

Could you mix yourself or can possibly be in the Pharmacy
74.6 g KCl = 1 mol, a 3 m KCl solution would then 223.8 g / litre or 22,38 g/100 ml

This corresponds to the instructions from the Aquariumforum.de in the third link (see above)
The solution should be überigens not long-lasting...

With the information we have now, the different meters should have now checked.

Happy DISP, Bernhard

Hello Stephen,

5,-up 6.50 € for 30 ml calibration solution with 6,714 g KCl?

For comparison: In the chemical trade, or even when i-Bah 1 kg KCl (p.a.) about 13,-€ or cost approximately 9 ct for ca 7 g of KCl; This Aqua dest from the drugstore or supermarket.

Critically, the accuracy of the weight and the volume when preparing the calibration solution is safe...

You can get a 100-ml volumetric flask at i-Bah for 7,-€
http://www.eBay.de/ITM/Messkolben-100-25...=item5893dd5d0c

Is the problem with the exact weight; possibly in the pharmacy to buy the exact amount (at pharmacy prices how much that may be for 22,38 g KCl there) or buy a fine balance.

Whether something like this:
http://www.eBay.de/ITM/100g-200g-Goldwaa...=item3cc951666f
enough, could you easily check with the help of the volumetric flask (100 ml H2O = 100 g) or it weighs 10 € 2 coins = 85 g...

@ all: who of the proud EC measuring devices calibrated his device regularly and how often is it necessary?
How big is the deviation to calibrate with you?

Happy DISP, Bernhard.

Hai



I could also help out. I work in a laboratory: da gibts both. A fine balance and KCl.

Are you interested?



MFG

Dominic

Hi Dominic,.

If you talk to me;-)...

Thank you, although I do not work in a lab, but I have both... the scale is a mechanical, but does their services.

The considerations of the costs, measuring and weighing accuracy should rather serve that for all (Fertigation, conductivity) is dealing it, a few are illuminated more aspects...

Happy weighing, Bernhard.

Hai



OK was only an offer



MFG

Dominic

Hello Stephen,

I have ever not wanted but simply viewed the link by Ronny...

OK, the solutions you've linked are cheaper, but even used are certainly not inaccurate, if you take the right weight and a calibration flask - only cheaper...
But not everyone it has an analytical balance at home or as Dominic standing around on the work; Therefore, the reference to the cradle aid (pharmacy)...

Happy weighing or buying, Bernhard.