EC meter with organic nutrients

[PunkAssWeed]

Hi

I wonder is ec meter useful with organic nutes? I read somewhere that ec-meter is only useful with chemical nutes.

Can anyone tell me more about this? It was something about absorbtion

For example if i make organig tea with guano, is there any point to measure ec?

Thanks

PAW

 

[Jonny Lan]

ORGANIC AND NO EC FOR ME!

ORGANIC AND NO EC FOR ME!



I am using Bio Canna Nutes they are OMRI listed organic and i have never used a ph meter or EC. I am now in week 4 of flower and my plants are doing quite fine so check it out
https://www.icmag.com/ic/showthread.php?t=287208&page=4

 

[noreason]

PAW, ec meter measures electricity, and indirectly ions quantity.
Ions are those with an electrical charge (+ or -) and only those can conduct electricity.

Ions are in every mineral fertilizers. Because of this you can use an ec meter to know (indirectly) how many fertilizers are in a solution.

Organic fertilizers can contain ions too. Not in every case.
Most of the essential elements plants need to survive, are bond to other stuff, forming a neutral molecule. All those neutral molecule don't conduct electricity and an ec meter is useless. It can't measure the quantity of organic fertilizers.

Some organic stuff, in contact with water, decompose in two ore more parts, producing ions. An ec meter can be useful here.

Finally, an ec meter can measure the quantity of ions, from both mineral or organic fertilizers. Do your math here

 

[PunkAssWeed]

Thanks noreason!

Basically if plants can take lets say ec 0.65 it can be measured to that and give it to plants. There propably is more nutes than "0.65" but its released slower.

PAW

 

[noreason]

Thanks noreason!

Basically if plants can take lets say ec 0.65 it can be measured to that and give it to plants. There propably is more nutes than "0.65" but its released slower.

PAW

Yes, there is more than what the meter can measures.

Released slower? Yes and no. Something needs to be decomposed first. Something else is directly available I guess, even being neutral.
First thing came in my mind is glucose, it can enter the plant, but it is neutral. I know it is not a ''fertilizer'' but it's for example.

Roots have different ways to let ''things'' enter the plant. The important thing to understand is that all these ways needs water. No water = no absorption. No water = lot of oxygen.
Improve absorption and oxygen uptake are the key for a big harvest (over a good clone )

 

[PunkAssWeed]

Thanks.

I though ferts need to be in ionic form to absorb. Havent read about roots or absorbtion, just quess its like that if you dont know you might just quess.

Can anyone suggest a thread how roots work?

PAW

 

[Hammerhead]

PAW, ec meter measures electricity, and indirectly ions quantity.
Ions are those with an electrical charge (+ or -) and only those can conduct electricity.

Ions are in every mineral fertilizers. Because of this you can use an ec meter to know (indirectly) how many fertilizers are in a solution.

Organic fertilizers can contain ions too. Not in every case.
Most of the essential elements plants need to survive, are bond to other stuff, forming a neutral molecule. All those neutral molecule don't conduct electricity and an ec meter is useless. It can't measure the quantity of organic fertilizers.

Some organic stuff, in contact with water, decompose in two ore more parts, producing ions. An ec meter can be useful here.

Finally, an ec meter can measure the quantity of ions, from both mineral or organic fertilizers. Do your math here

Agree 100% could not have said that better.

 

[noreason]

Thanks.

I though ferts need to be in ionic form to absorb. Havent read about roots or absorbtion, just quess its like that if you dont know you might just quess.

Can anyone suggest a thread how roots work?

PAW

I can't suggest any thread, but being the cannabis similar to many other species, having the same angiosperm ancestor, you can google: ''apoplastic and symplastic pathways''.

You'll find many useful informations that apply to cannabis too

Agree 100% could not have said that better.

Thanks