Nutrient Question

[qpon]

This is the nutrients I'm using

http://www.planetnatural.com/site/dyna-gro-grow.html

the guy at the hydroponics store told me it was good for the "vegging" stage, of course he was talking about herbs or tomatoes or something, I wan't to know if this food will be good for the flowering stage or will I need to go buy the "Bloom" nutrients

The nutrients in this formula are as follows

Total Nitrogren 7.00000%
2.6% ammonlacal Nitrogen
4.4% Nitrate Nitrogen
Available Phosphate (P205) 9.0000%
Soluable Ptash(K20) 5.0000%
Calcium(Ca) 2.0000%
Magnesum(Mg)0.5000%
0.50% Water Soluble Magnesium
Boron(B) 0.0200%
Chlorine (Cl)0.1000%
Cobalt(Co) 0.0015%
Copper(Cu) 0.0500%
0.0500% Chelated Copper
Iron(Fe) 0.1000%
0.1000% Chelated Iron
Manganese(Mn) 0.0500%
0.500% Chelated Manganese
Molybdenum(Mo) 0.0009%
Sodium(Na) 0.1000%
Zinc(Zn).0.0500%
0.0500@ Chelated Zinc

 

[morrisgreenberg]

yes you will need dyna-bloom, keep feeding the dynagrow till 2 weeks into flowering, once you start seeing bud sites form switch over nutes, for my opinion about dyna-gro, its not the flashiest, not most expensive, to me its the finest one part nutrient i have used so far, stable PH..let me give you an example, i have a terrible iron deficiency from using GH 3 part, too much PH flux and within 24 hours my PH goes from 5.5 to 6.5, i gave a fresh rez of dynagrow last night at 5.7ph and it is 5.8 today, every time i used it my plants responded very well. personally i love to use all kinds of additives and bloom boosters, the dynagrow is the best product i used during veg

 

[Al B. Fuct]

Fertiliser composition is represented by a three figure expression like 10-10-10, 5-10-5, etc. The figures represent the ratios of the principal elemental nutrients N (nitrogen), P (phosphorus) & K (potassium) to one another.

Cannabis prefers a high ratio of N to P & K for vegging, i.e. 20-10-10, 10-5-5, etc. In both examples, N exists in twice the amount compared to P & K. 20-10-10 would have twice as much N, P & K as 10-5-5.

For flowering, cannabis needs a high P nutrient such as 10-20-10, 5-10-5, etc. Note that the figure for P is greater than those for N & K.

Avoid extremely high P nutes like 10-50-10 (African violet food). There's too much P for the N & K and this has been known to cause what looks like an N deficiency in cannabis. You can use P based 'bloom boosters' (such as Canna PK-13-14) in late flower (week 6 of flowering, use for 1 week only), but stick with a more moderate P ratio for weeks 1-5 and 7-8. You may want to stop using nutes altogether in flowering weeks 7-8. The plants will store right on 2 weeks worth of nutes anyway.

The nutrients in this formula are as follows

Total Nitrogren 7.00000%
2.6% ammonlacal Nitrogen
4.4% Nitrate Nitrogen

Total N = 7%

Available Phosphate (P205) 9.0000%

P = 9%

Soluable Ptash(K20) 5.0000%

K = 5%

This nutrient is 7-9-5, making it relatively high P, which is actually better suited for flowering. I don't know why DynaGro are selling this as a 'grow' or veg nutrient. This product should be labelled as being for use in flowering, not 'grow' (aka veg).

 

[qpon]

Thanks for the replies guys, this helped a lot. I appreciate it.

What combination of those 3 nutrients do you think is best for flowering? like 3-12-6??

 

[Al B. Fuct]

I'm not sure of any established optimal NPK for flowering, but I do know that 10-50-10 African violet food has given many ppl grief. I'd stick to a 1:2:1 ratio, i.e. 5-10-5, 10-20-10 or thereabouts for flowering. Some ppl use P & K based 'bloom boosters' (such as Canna PK-13-14 and imitators) for 1 wk only in week 6 of flowering, which in addition to usual flowering nutes, can yield a very high P number. You can P burn badly with P boosters, so start with 1/4 the mfr recommended dosing and use it for only 1 week in wk 6.