Do I need more Organic phosphorus ???

[Julio9910]

Hey fellow Autoflower lovers
First time posting
First time full organic growing

Can any recommend a organic bloom booster for in the U.K please you people in the U.S got plenty options. I can’t find a bone meal I’m confident in buying something like a 0-10-0 I’m not to sure.

I am using
eco thrive charge and life cycle dry amendments (biosys for weekly tea)
Mammoth p
Bio bizz acti-Vera
Organic molasses

Is there anything I’m missing for phosphorus in bloom if so any recommendations please ??

 

[Builder0101]

Bloom Bat Guano?

 

[DTOM420]

Since this is in the organic section, I’m going to share my personal belief that ‘adding more phosphorous’ is not the answer, it’s releasing what you have already. “Adding” is kind of a holdover from bottle growing. If you started with a well balanced organic soil and you have the right/enough biology in there, your plant will have all the phosphorous it needs. Since I started building my soil from known recipes (I currently use BAS and KISS but I know they’re not available in Europe) and testing my soil, I’ve been able to run with nothing more than water and AACT. I’m not familiar with the Eco line of amendments but I would assume it probably has sufficient P if it’s a complete system. If you’re looking for a good source of Phosphorous that’s sustainable and organic, fish bone meal is good. But I think the real key is always lots of biology. There’s usually a lot more nutrition left in soil than most people realize but it wasn’t AVAILABLE to the plant - typically because of insufficient biology.

I noticed you didn’t list a Mycorrhizae. Inoculation in the very beginning of the plant’s life is key to building the hyphae necessary to supply supply plenty of P when the plant wants it.
Hope this helps

 

[KIS]

Yeah you may not need more phosphorus. Typically you can also get it from things like fish bone meal or soft rock phosphate too, but it's good to have a test prior to application. Even some composts may be higher in P. Neem and Alfalfa meal are both around 1% too if you can't source the other options above.

 

[hecno]

You could always try this , Phosphate solubilizing bacteria .

 

[DTOM420]

He did list that he's applying Mammoth P in his original post. That's the type of bacteria you're talking about, correct? Is there another bacteria that's commercially available and known to solubilize Phosphorous? I forgot to mention Mycorrhizae in my reply and obviously it's too late to be applying it in flower, since the network needs to be grown and established from early on to be effective in delivering P. However, I should have mentioned it.