The myth, of the high P myth?

[Hammerhead]

i can only use my experience witch is extensive. I will never experiment my elite genetics I leave that up to you. Im happy with my yields and potency. Could not be better imo.

I asked in my post what is high p where is my answer professor Spurr? im only using 13 that's very low imo.

I have seen your grows and if thats an indication of your better method I will pass.

 

[spurr]

i can only use my experience witch is extensive. I will never experiment my elite genetics I leave that up to you. Im happy with my yields and potency. Could not be better imo.

IMO, no matter how 'good' things are, there is always room for improvement, ex., with one's attitude toward others , or their grow.

FWIW, my experience, as well as others here, is also extensive.

I asked in my post what is high p where is my answer professor Spurr? im only using 13 that's very low imo.

I already wrote you an answer, IME/IMO:

• high = > 80 ppm P
• low = < 30 ppm P

I have seen your grows and if thats an indication of your better method I will pass.

Original (and honest) insults tend to be more effective, just saying

 

[YosemiteSam]

Hammerhead...The 13 in pk 13/14 means that it contains 13% P2O5...it does not mean you are at 13 ppm P. On top of that the pbp already has P in it.

We prefer to talk in elemental ppm...that is ppm P (not P2O5). It makes comparison more easily understood.

If you want enter your formula in the calculator that Mullray linked to. That way we can see how far off we are from your formula that is doing so well.

edit...those are some big ol nice looking colas Hammer...nicely. Do you use any calmag with the pbp?

 

[Hammerhead]

I will look at it and see if i can understand what info it wants. Professor Spurr no insult seems to be a fact to me. anyone can look into your albums and see what you got. I dont see anything worth mentioning.

 

[Avenger]

 

[Hammerhead]

Here is my Bottle I can not make heads or tails of tha form. I also looked up PK13/14 There is no info I can find on that. Professor Spurr you know the saying say what you mean and mean what you say. Proof is in the pudding. There is nothing better than showing proof of concept. take up this test and grow some plants using your method and then post your results. I would be very interested to see what you find.

 

[Hammerhead]

YA im not filing the form corectly. I get this 2034.131135415 but is not corect.

 

[Avenger]

YA im not filing the form corectly. I get this 2034.131135415 but is not corect.

What is the dosage you use for each fertilizer in your mix?

I'll enter it for you.

 

[spurr]

@ Hammerhead,

How much PGPB do you use and how much PK 13/14, per gallon? Those figures are needed to find the total ppm by element of your mix.

 

[Hammerhead]

20ml per g of PBP and 5ml per 5g of PK 13/14

 

[Avenger]

20ml per g of PBP and 5ml per 5g of PK 13/14

That gives a profile of:
60 ppm Nitrogen
174 ppm Phosphorus
394 ppm Potassium
60 ppm Calcium
20 ppm Magnesium
and probably about 19 ppm sulfur ( if my guess is close on the unlisted S % in p/k 13/14)

 

[Hammerhead]

Looks low to me. I have a ppm of 1100 EC 2.0. So what does all that mean. Im in the final stages of flowering. I was using 25mls g and 6ml of PK. when I first started flowering. 2 more weeks of food and then I will cut off all food and use plain water until done.

 

[spurr]

I forgot all about GrowGreen ...

If anyone remembers GrowGreen, she grew great buds and was/is a very educated and smart grower. Her fairly well known and fairly widely tested synthetic-hydro fertilizer formula has ~45 ppm P.

She used/uses 15 ml/gal Pure Blend Pro Bloom with 5 ml/gal CalMag Plus. The PBPBloom has organic sources of P, IIRC, if so, that means more P may become available over time affecting the claim of 45 ppm P:

(this data is from a post by Lucas)
N 161
P 45
K 214
Ca 45

Ca 45 ??? Was this a successful formula?

It has ~88 ppm Ca, the above figures lack the N, Ca, Mg and Fe from CalMag Plus. Below is the GrowGreen formula, I think I can get more info about elements later. And she used to get big yields and dank goodness via ebb/flow, IIRC.

I am unsure where Lucas got that high N from, the real total N (i.e., NH3 + NH4 + NO3) is 71.9 ppm. As well as the low P, and the high K too. He must have been using the non-soil formula of PBP Bloom. Here is the "PBP Bloom soil formula" of GrowGreen's mix (not just for media, also hydro people use it):

• NO3 = 68.7 ppm
• NH4 = 3.2 ppm
• P = 78.6 ppm
• K = 186.3 ppm
• Ca = 87.9 ppm
• Mg = 38.4 ppm
• Fe = 1.3 ppm

PBP Bloom (Soil):

• N 1%
• P2O5 4%
• K2O 5%
• Ca 1%
• Mg 0.5%
  • at 15 ml per gallon (by ppm):
  • NN = 42.7
  • AN = 2.2
  • P = 78.6
  • K = 186.3
  • Ca = 44.9
  • Mg = 22.4

 

[spurr]

That gives a profile of:
60 ppm Nitrogen
174 ppm Phosphorus
394 ppm Potassium
60 ppm Calcium
20 ppm Magnesium
and probably about 19 ppm sulfur ( if my guess is close on the unlisted S % in p/k 13/14)

Humm, I get the following from 20 ml/gallon PBP Bloom soil and 1 ml/gallon PK 13/14. The following numbers assume the PK 13/14 is used at 1 ml/gallon, because Hammerhead wrote he uses "5ml per 5g [5 gallons of water?] of PK 13/14" and I assume that to mean 1 ml/gallon:

(assuming 0.95% NO3 and 0.05% ammonium in the PBP Bloom)

• N = 59.9 ppm
• NO3 = 56.9 ppm
• NH4 = 3 ppm
• P = 113.4 ppm
• K = 267.8 ppm
• Ca = 59.9 ppm
• Mg = 30 ppm

Stats:

PBP Bloom (from HammerHead's pic)

• 20 ml/gal (5.283 ml/L)
• 1.1333 SG (1,088 mg / 960 ml)
  • N 1%
  • P2O5 4%
  • K2O 5%
  • Ca 1%
  • Mg 0.5%

PK 13/14 (from Avenger's pic)

• 1 ml/gal (0.26 ml/L)
• 0.8 SG (200 mg / 250 ml)
  • P2O5 10%
  • K2O 11%

 

[Hammerhead]

So what does all that mean to mean what can I do with that info? 15 ml is for the last week of flower.

So if I look a P @ 174 thats concidered high or bad? if it is it sure isnt causing any problems with the girls. Look at how high the K is.



60 ppm Nirogen
174 ppm Phosphorus
394 ppm Potassium
60 ppm Calcium
20 ppm Magnesium
and probably about 19 ppm sulfur

 

[Hammerhead]

no he right thats a typo should be 5mls pr g. I was going to type I use a 5g bucket I just missed the hole line when I deleted it.

 

[spurr]

So what does all that mean to mean what can I do with that info? 15 ml is for the last week of flower.

So if I look a P @ 174 thats concidered high or bad? if it is it sure isnt causing any problems with the girls. Look at how high the K is.



60 ppm Nirogen
174 ppm Phosphorus
394 ppm Potassium
60 ppm Calcium
20 ppm Magnesium
and probably about 19 ppm sulfur

P at 174 ppm is high, it may not be 'bad' in terms of causing enough damage to stop use at that concentration. However, 174 ppm is too high in terms of effective use of fertilizer, esp. if during pre-flowering when (IME/IMO) you want P to be < 60 ppm. Also, the P:S ratio, as well as other anion:anion ratios such such as P:B, etc, are important, a very high P:S ratio can hinder uptake of S.

 

[Hammerhead]

See other post. Im 8 weeks into flower so im not in pre flower im almost ready to start my Pre harvest feeding of nothing for a week or 2.

 

[spurr]

Weird, I still get different numbers than you for P, K and Mg, Avenger. I wonder why ... I used the link posted by mullray, but doubled check the numbers on Cannastat.

That gives a profile of:
60 ppm Nitrogen
174 ppm Phosphorus
394 ppm Potassium
60 ppm Calcium
20 ppm Magnesium
and probably about 19 ppm sulfur ( if my guess is close on the unlisted S % in p/k 13/14)

From 20 ml/gal BPB Bloom with 5 ml/gal PK 13/14 I get:

• N 59.9 ppm
• NN 56.9 ppm
• AN 3 ppm (assuming 0.05% AN)
• P 150.2 ppm
• K 345.2 ppm
• Ca 59.9 ppm
• Mg 30 ppm
• S 19 ppm (using Avenger's guess)

Stats:

PBP Bloom (from HammerHead's pic)

• 20 ml/gal
• 1.1333 SG (1,088 mg / 960 ml)
  • N 1%
  • P2O5 4%
  • K2O 5%
  • Ca 1%
  • Mg 0.5%

PK 13/14 (from Avenger's pic)

• 5 ml/gal
• 0.8 SG (200 mg / 250 ml)
  • P2O5 10%
  • K2O 11%

 

[Hammerhead]

I have maintained a P of 170+ for the last 6 weeks. This is what I got. These pics are almost a week old the colas are bigger now.