[calstar]

Again, thank you Shroom Dr for the number crunching(you too metalhead419). This should be required reading for anyone buying and using ferts and "boosters".

[ShroomDr]

Dyna-Gro Grow (7-9-5) (NH4)2.6% (NO3)4.4% Mg0.5% Ca2.0% Fe0.1% S0.05% Mn0.05%
@10ml/Gal
N 242
P 136
K 143
Mg 17
Ca 69
S 2
Fe 3.4552
B .691
Cl NOT LISTED
Co 0.0518
Cu 1.7276
Mn 1.7276
Mo 0.0311
Ni NOT LISTED
Zn 1.7276
Derived From: Calcium Nitrate, Mono-Potassium Phosphate, Mono-Ammonium Phosphate, Potassium Nitrate, Ammonium Nitrate, Magnesium Sulfate, Nickel Nitrate, Iron, Boric Acid, Potassium Chloride, Cobaltous Sulfate, Copper, Molybdic Acid, Manganese, and Zinc.


Dyna Gro Bloom (3-12-6) (NH4) 0.7% (NO3) 2.3% Mg0.5% Ca2% Fe0.1% S0.09% Mn0.05%
@10ml/Gal
N 103
P 181
K 172
Mg 17
Ca 69
S 3
Fe 3.4552
B .691
Cl NOT LISTED
Co 0.0518
Cu 1.7276
Mn 1.7276
Mo 0.0311
Zn 1.7276
Derived From: Calcium Nitrate, Potassium Phosphate, Potassium Nitrate, Ammonium Nitrate, Ammonium Phosphate, Magnesium Sulfate, Iron, Boric Acid, Potassium Chloride, Cobalt Sulfate, Copper, Molybdic Acid, Manganese, Zinc Disodium Ethylenediamine Tetra Acetate

Thanks i added these two. For the sake of uniformity, could you list all the mircos on the bottles? For instance, you listed the Mn%, but not the B, Co, Cu, Mo, Zn? Im sure they are on the bottle if you extrapolated the real levels.

Did they list a Ni on the dynagrow? It is the first instance of Ni ive seen.

[ShroomDr]

Originally Posted by Willi

Interesting thread!

A question first: How much calcium needed hemp at all?

Thats what im trying to figure out.

User Carl Carlson has a thread called Hemp tissue nutrient analysis data. You may want to check that out too.



Your English is better than my German!

Hey ShroomDr, thanks for the link!

Ok - I thought you want to clarify the required percentage Ca in irrigation water, my English is not the best, so I do not always understand everything right

The question of how much calcium the plant needs and how much calcium in the irrigation water is necessary to my knowledge are two different points. The Ca in irrigation water has three tasks:

- To stabilize the pH of irrigation water
- To stabilize the pH in the medium, if any present
- To supply the plant with Ca

This is a very interesting topic, I write even more when I did the translation of my text

[kiwiboy]

Looking for a tool that can help me convert npk values into the ppm values, like what you have been doing above.


Sorry for being dumb, but what is the npk values for phosphoric acid?
Wanting to simulate pk13/14 using phosphoric acid and mono potassium phosphate.


HYDRO BUDDY very interesting program for helping to formulate nutrients from ppm values
https://allhydroponics.blogspot.com/2...-nutrient.html

[Metalhead419]

Sorry, I didn't actually have the bottle in front of me, just used the numbers off their website, and a picture of the front of the bloom bottle I found for the weight. Will try to do so in the future though, thanks again.

[Metalhead419]

Heavy 16 Bud A (4-0-2) (NH4) 0.3% (NO3) 3.8% Ca4.2% Fe.1% B.016% Mn.034% Zn.009% Mo.0008%
@8ml/Gal
N 84
P 0
K 35
Mg 0
Ca 89
S 0
Fe 2.1136
B .3382
Cl 0
Co 0
Cu .0211
Mn .7186
Mo .0169
Zn .1902
Derived From: Calcium Nitrate, Potassium Nitrate, Iron DTPA, Iron EDDHA, Manganese Sulfate, Manganese EDTA, Zinc Sulfate, Zinc EDTA, Copper Sulfate, Copper EDTA, Sodium Borate, Sodium Molybdate, Ammonium Nitrate.

Heavy 16 Bud B (1.25-3.7-7.4) (NH4) 0.0% (NO3) 1.25% Mg 1.6% S 2.4%
@8ml/gal
N 26
P 34
K 130
Mg 34
Ca 0
S 51
Fe 0
B 0
Cl 0
Co 0
Cu 0
Mn 0
Mo 0
Zn 0
Derived From:Potassium Nitrate, MonoPotassium Phosphate, Magnesium Nitrate, Magnesium Sulfate, Potassium Sulfate

Some new nutes called Heavy 16 I'm thinking about trying. Shroom, should those zeros say not listed? What do you think about the numbers on this stuff, using it for hydro? You think it will be any good?

[desertsquirrel]

I remember reading in a cal thread that there was some question as to how much cal the plants actually need by its self and how much is needed to preserve a ratio of cal to mag... Can you shed any light on this question shroomdr?

Originally Posted by desertsquirrel

I remember reading in a cal thread that there was some question as to how much cal the plants actually need by its self and how much is needed to preserve a ratio of cal to mag...

I believe there is no optimal ratio between calcium and magnesium. I only know hard water, with lots of calcium, contains low amounts of magnesium. Why? I do not know.

Too much calcium is impossible, you can not burn a plant with calcium. The limit for the levels of calcium is the pH in the medium, which can be reduced at high calcium concentration with an acid fertilizer.

The manufacturers for professional use fertilizers in agriculture offer advice based on water quality, the plant to cultivate on the specific medium. The fertilizer manufacturer for hemp do not have this knowledge, unfortunately. They are all dilettantes how sell fertilizers for all purpose to anyone no matter about the water quality. Sometimes they truely want to sell a fertilizer for all media. It's crazy how we get ripped off by idiots with no knowledge

If one understands my English?

your English is fine willi and your point is interesting.

no question water quality plays a huge part of the equation. and also no question it does not get discussed near enough.