Grow Mediums Canna Coco and High frequency fertigation

[Zaaboot]

Do anyone knows how can I dilute my water After giving the full dosage of fertilizer?
Do I have to use water with calmag at 0.4 EC for dilution?

Not sure exactly what you are asking about diluting water?
When I make a res I do the following:
20 litres of RO water
Add my Grow or Bloom nutrients to required amount
test EC and PH
Add additionals (root tonic, boosters etc...)
Test EC and PH
Add Calmag and silica
Test EC and PH and adjust accordingly - if my reading is too high, I add RO and tap water to water it down to the desired strength. Hope that helps

 

[draxcel]

Not sure exactly what you are asking about diluting water?
When I make a res I do the following:
20 litres of RO water
Add my Grow or Bloom nutrients to required amount
test EC and PH
Add additionals (root tonic, boosters etc...)
Test EC and PH
Add Calmag and silica
Test EC and PH and adjust accordingly - if my reading is too high, I add RO and tap water to water it down to the desired strength. Hope that helps

I Ve been told to not add distilled water to dilute my nutrient solution because It Will destroy my nutrient ratios After mixing full strenght doses.I Ve been told to use calmag water, example Calmag and distilled to a 0.4 EC...Is this true?
I read It on cocoforcannabis

 

[draxcel]

You'll dilute a nuted solution with water only, and then check the EC to bring it into your desired strength

So I Need distilled water and bring It to the EC I desire,but mix at full strenght to not alter NPK ratios,right?

 

[blue]

So I Need distilled water and bring It to the EC I desire,but mix at full strenght to not alter NPK ratios,right?

I'm confused. So i'll just tell you how i used to prepare my feeds for coco.

It firstly helps if you have a vague idea of how many ML per Litre (or 2 litre, or 5 litre) will bring your solution to the correct EC.
The only way to do this is trail and error ... so carefully monitor how much you're putting in and what the end EC result is.

(example)

ON THE BASIS THAT YOUR TARGET EC IS 1.5
Lets assume that 15ml of your nutes in 5 litres or water will get you to 1.5 EC

Some things will ADD to the EC (salt based/chem nutes), and some things Won't (organic) ... and some things don't matter (acid)

You may also want to add PK to your base nutes that have been mixed in, so throw in 5ml (only 1ml per litre) ... and that takes your EC to 1.7
You're now 0.2 over what you wanted ... so add water to bring it back down to 1.5

Once all the feed bits are added and you're happy that you've met your target EC, put the EC meter away.

It's now time for PH .....


Unless you're using Lemon juice, PH management WILL effect EC measurements ..... BUT .. it's not food .. no nutrition. Keep the EC meter put away.

Just PH down to your target PH (coco i would aim for 5.8 all the time, unless trying something fancy (and ultimately more complicated and possibly unecessary)

And that's it - feed it!

It's the EC PH dance that takes the time and for me, makes coco too time consuming.

Hope this is helpful, and kind of answered any confusions.

 

[DCLXVI]

You could try mixing at lower percentages of nutrients instead of trying to adjust a smaller batch. I run the Jacks 321 nutrient line at 50-80% strength. I think it's easier to just use less nutrients initially. If a full dose is 5ml/litre try using only 2.5ml/litre. If the ratios are consistent then the balance should be maintained. Sometimes it takes a bit of test and tune just like @blue said.

I would not push over 700ppm for autos and I know others say even less. They seemed to respond very well in the 400-550 range for me. I'm currently running photos at ~730ppm even though the feed chart says 1200.

As far as the watering, frequency, volumes, etc.... You are probably on the right path with running 2 different methods and see what works best for you. I had been cutting my tap water with jugs of distilled water from the store. Worked pretty well until the cost of water went up. Then it was worth investing in a small RO system.


What nutrient line are you going to run?

 

[draxcel]

You could try mixing at lower percentages of nutrients instead of trying to adjust a smaller batch. I run the Jacks 321 nutrient line at 50-80% strength. I think it's easier to just use less nutrients initially. If a full dose is 5ml/litre try using only 2.5ml/litre. If the ratios are consistent then the balance should be maintained. Sometimes it takes a bit of test and tune just like @blue said.

I would not push over 700ppm for autos and I know others say even less. They seemed to respond very well in the 400-550 range for me. I'm currently running photos at ~730ppm even though the feed chart says 1200.

As far as the watering, frequency, volumes, etc.... You are probably on the right path with running 2 different methods and see what works best for you. I had been cutting my tap water with jugs of distilled water from the store. Worked pretty well until the cost of water went up. Then it was worth investing in a small RO system.


What nutrient line are you going to run?

Canna Coco A+B and cannazym.
So yes,@blue answered all my questions,I only don't understand why It Is possible to cut the ferts dosage and/or dilute After I made the batch.I tried both and Always get with Nitrogen excess and Phosphorus deficiency,maybe I Just have to feed less than 1 EC for autos.

 

[Zaaboot]

I Ve been told to not add distilled water to dilute my nutrient solution because It Will destroy my nutrient ratios After mixing full strenght doses.I Ve been told to use calmag water, example Calmag and distilled to a 0.4 EC...Is this true?
I read It on cocoforcannabis

thank you @draxcel - to be honest I have never heard of that, I agree with the ratios hence I use a little tap water and the rest RO to water down an over hot mix - I would have thought by adding cal mag at the start to your main nute mix, then in the mix you are watering down with you will end up with a calmag heavy reservoir

 

[Zaaboot]

Canna Coco A+B and cannazym.
So yes,@blue answered all my questions,I only don't understand why It Is possible to cut the ferts dosage and/or dilute After I made the batch.I tried both and Always get with Nitrogen excess and Phosphorus deficiency,maybe I Just have to feed less than 1 EC for autos.

it is practice, you will get how much of each to add to the main res.
But dont underfeed - less than an EC of 1 is likely to be too low to give the plat what it needs. I have noticed handwatering people tend to flower at 1.6 to 1.8, and recirculating systems can go higher - the plant will tell you if it needs more or less. Another easy way if you are in a recirculating system is to check the EC in the main tank regularly, if the EC in the res gravitates towards a higher EC you are probably a touch high to start with, and if the res drifts towards a lower EC than you put in, you can be safe to assume you can add a touch more

 

[blue]

thank you @draxcel - to be honest I have never heard of that, I agree with the ratios hence I use a little tap water and the rest RO to water down an over hot mix - I would have thought by adding cal mag at the start to your main nute mix, then in the mix you are watering down with you will end up with a calmag heavy reservoir

Very good point sir!!

@draxcel .. think Zeaboot has just hit the nail on the head .. if you're using calmag .. take a look at the numbers on the bottle! When i was using a brand of calmag with my coco, i was always getting dark green N tox leaves .

.. A look at the bottle showed extra N (nitrogen) in the calmag .. I changed to another brand and had no problems!
I think i'm now using calmagi+ (but can't find the bottle and have packed all away) ... Take a look at the NPK numbers.

I don't think y ou always need calmag (unless using RO) .. and even so, use it sparingly . I use it with my soil and Cana Veg and Canna Flores nutes .. and pour a 1/4 cap in a 5 litre plus rez .. so very little and innacurate!

 

[draxcel]

Very good point sir!!

@draxcel .. think Zeaboot has just hit the nail on the head .. if you're using calmag .. take a look at the numbers on the bottle! When i was using a brand of calmag with my coco, i was always getting dark green N tox leaves .

.. A look at the bottle showed extra N (nitrogen) in the calmag .. I changed to another brand and had no problems!
I think i'm now using calmagi+ (but can't find the bottle and have packed all away) ... Take a look at the NPK numbers.

I don't think y ou always need calmag (unless using RO) .. and even so, use it sparingly . I use it with my soil and Cana Veg and Canna Flores nutes .. and pour a 1/4 cap in a 5 litre plus rez .. so very little and innacurate!

Thank you both @Zaaboot and @blue ,I only Need to understand where my P deficiency and N toxicity come from,I still have not used any calmag product,only tap water.And the runoff Is lower than input,about 0.1 EC lower...I cannot get my head around this!

My feed range Is +-1 EC
My pH Is under 6.0 and manimum 5,65-70
Maybe my lamp Is set too weak at 40%,It Is an attis 200watts lumatek.My temps are in range though