THCFarmer.com
121,176 Members Log In Register
Log In Register

Adding nutrients to RDWC question.

  • Thread starter Thread starter BudWrangler
  • Start date Start date
  • Tagged users Tagged users None

Adding nutrients to RDWC question.

BudWrangler 37 Replies 8,273 Views
Page 2 of 2 · Replies 21–38 of 38
#23
If using cal + mag why also use Epsom? I thought Epsom was an alternative to cal mag supplement.

I've obviously never used Epsom salt or silica have never thought I needed to but now I'm wondering if my great bud could be better?
 
#24
JadedMarxist said:
If using cal + mag why also use Epsom? I thought Epsom was an alternative to cal mag supplement.

I've obviously never used Epsom salt or silica have never thought I needed to but now I'm wondering if my great bud could be better?
Click to expand...
So most nutrients have more than adequate calcium and so does most tap water. The issue is under LED plants will use up more Ca, Mg, potassium. this is generally more die to spectrum not the light source. Now cal mag is usually in a ratio close to 5 to 1 CA to Mg. Tap water is usually like 10 to 1 and most ferts high is cal but lacking in Mg. Ideally we want 2-3 to 1 Ca to Mg. So we add epsom salt which is Mg Sulfate no calcium to bring the ratios to a more favorable point

I like N at about 100-120ppm then do the ratios so N to K is 1 to 1.5, K to Ca is aboit 2 to 1, Ca to Mg is 2 to 1 and P is half of Mg. By adjust based on N its easy to see by plant response and when we reduce N we want to reduce all by the same amount to keep the same ratios. Basically what I saying is most ferts Ca to Mg ratios need adjusting for best results.
 
#25
JadedMarxist said:
If using cal + mag why also use Epsom? I thought Epsom was an alternative to cal mag supplement.

I've obviously never used Epsom salt or silica have never thought I needed to but now I'm wondering if my great bud could be better?
Click to expand...
Nor have i. I've only used epsom as a spray .
 
#26
smokedareefer said:
Nor have i. I've only used epsom as a spray .
Click to expand...
Always an option i just prefer to feed through the roots unless addressing a deficiency where I need faster uptake. I seen many ppl mess up thier plants Soni dont usually recommend spraying but if done right can be great.
 
#27
Aqua Man said:
Always an option i just prefer to feed through the roots unless addressing a deficiency where I need faster uptake. I seen many ppl mess up thier plants Soni dont usually recommend spraying but if done right can be great.
Click to expand...
I always seem to be playing catch-up thinking i to should be adding it before hand
 
#29
Ok I think I am starting to understand. But wouldn't the other supplements like the silica cal-mag hydroguard and the epsom make the ppm to high, if I stick with the directions. I looked in to what the ppm should be and get all kinds of different result but found something that says i should go for about 100ppm form start and increase by 100ppm every week until finish. Another thing is that my ppm meter has 2 scales a 500ppm and a 700ppm also has ec setting.
 
#30
BudWrangler said:
Ok I think I am starting to understand. But wouldn't the other supplements like the silica cal-mag hydroguard and the epsom make the ppm to high, if I stick with the directions. I looked in to what the ppm should be and get all kinds of different result but found something that says i should go for about 100ppm form start and increase by 100ppm every week until finish. Another thing is that my ppm meter has 2 scales a 500ppm and a 700ppm also has ec setting.
Click to expand...
Depends on what your adding. Ratios are most important then the ppm is adjust based on response to nitrogen. Typically how its done.
 
#31
BudWrangler said:
Ok I think I am starting to understand. But wouldn't the other supplements like the silica cal-mag hydroguard and the epsom make the ppm to high, if I stick with the directions. I looked in to what the ppm should be and get all kinds of different result but found something that says i should go for about 100ppm form start and increase by 100ppm every week until finish. Another thing is that my ppm meter has 2 scales a 500ppm and a 700ppm also has ec setting.
Click to expand...
I think you're using gh trio? If that's correct then they use the 500 scale. Ppm is converted from ec electric current. It's just 2 ways to read the same information.
 
#32
BudWrangler said:
Ok I think I am starting to understand. But wouldn't the other supplements like the silica cal-mag hydroguard and the epsom make the ppm to high, if I stick with the directions. I looked in to what the ppm should be and get all kinds of different result but found something that says i should go for about 100ppm form start and increase by 100ppm every week until finish. Another thing is that my ppm meter has 2 scales a 500ppm and a 700ppm also has ec setting.
Click to expand...
Hydro guard shouldn’t adjust PH or PPM/EC or at least last I knew.
 
#33
1608170724522

This is the what I am thinking about running. And to adjust the ppm would i just add a little bit more of each?
 
#34
BudWrangler said:
View attachment 1068283
This is the what I am thinking about running. And to adjust the ppm would i just add a little bit more of each?
Click to expand...
Hey I know that chart it’s off I heart growing marry lol, that chart take notice is allready reduce amounts from the actually feed chart. I know only because week4 GH says 7.5ml on each that chart does 5ml
 
#35
BudWrangler said:
View attachment 1068283
This is the what I am thinking about running. And to adjust the ppm would i just add a little bit more of each?
Click to expand...
I follow the gh schedule. But I usually go light, well always go light, I only mix for 8 gallons of water even though I'm using 10 so 80% strength.
 

Attachments

  • Screenshot_20201105-184405_Chrome.jpg
    Screenshot_20201105-184405_Chrome.jpg
    240.2 KB · Views: 174
#36
BudWrangler said:
View attachment 1068283
This is the what I am thinking about running. And to adjust the ppm would i just add a little bit more of each?
Click to expand...
Now I will say that with autos this schedule is more of a rough guideline. Kinda have to go by looks of the plant and adjust the nutrient amounts accordingly. I started flowering at 33 days I think and skipped ahead to that stage of feeding. This is just what I have done. I'm not sure if it was the right approach but it made sense to me.
 
#38
ok so just use that and if i start getting burn back it off a litte and if i get deficiencies bump it up a little and the ppm should fall into place
 
Page 2 of 2 · Replies 21–38 of 38
Back
Top Bottom