Cannabis ash nutrient value

[Great outdoors]

Does anyone know the nutrient values of CA, K, P, etc from the ashes of cannabis stalks and leaves?
Can't find anyone who has actually done an analysis combing the web.

 

[CosmicGiggle]

Good question but why limit to just the ashes?

...... how many peeps burn the leftovers when it's still illegal in most of the world, who wants the attention?

 

[Cvh]

You might be interested in the following thread. I think the answer to your question is on page 2 including links to studies.

https://www.icmag.com/forum/marijuan...f-cannabis-ash

Cheers

 

[Great outdoors]

Good question but why limit to just the ashes?

...... how many peeps burn the leftovers when it's still illegal in most of the world, who wants the attention?

Well it's legal here and with big outdoor plants I have plenty of biomass to burn.
I also compost lots of it for next year's plants, so I would also be interested in a nutrient analysis of the biomass. Really I guess if we knew the nutrient value of the plant we would have an idea on the ashes minus the N and S.

 

[Cvh]

I copied it for you from the other thread I posted above

https://www.scribd.com/document/99356204/All-About-Hemp

The complete plant has the following composition: C (38.94%), H (6.06%), N (1.74%), O (48.72%),ashes (4.54%).

The stalks contain: C (56.80%), H (6.48%), N (0.43%), O (34.52%), ashes (1.77%).

The leaves contain: C (40.50%), H (5.98%), N (1.82%), O (29.7%), ashes (22%).

The ashes of the hemp plant contain: KOH (7.48%), NaCO 3(0.72%), CaO (42.05%), MgO (4.88%), Al2O3(0.37%), SiO2(6.75%), H3PO4(3.22%), H2SO4(1.10%),Cl (1.53%), CO2(31.90%)

The ashes of the seeds contain: KOH (20.81%), NaCO3(0.64%), CaO (25.57%), MgO (0.96%), FeO2(0.74%), H3PO4(35.52%),CaSO
4(0.18%), NaCl (0.09%), H2SiO3(13.48%), C (6.19%)

Cheers

 

[Great outdoors]

I copied it for you from the other thread I posted above

https://www.scribd.com/document/99356204/All-About-Hemp

The complete plant has the following composition: C (38.94%), H (6.06%), N (1.74%), O (48.72%),ashes (4.54%).

The stalks contain: C (56.80%), H (6.48%), N (0.43%), O (34.52%), ashes (1.77%).

The leaves contain: C (40.50%), H (5.98%), N (1.82%), O (29.7%), ashes (22%).

The ashes of the hemp plant contain: KOH (7.48%), NaCO 3(0.72%), CaO (42.05%), MgO (4.88%), Al2O3(0.37%), SiO2(6.75%), H3PO4(3.22%), H2SO4(1.10%),Cl (1.53%), CO2(31.90%)

The ashes of the seeds contain: KOH (20.81%), NaCO3(0.64%), CaO (25.57%), MgO (0.96%), FeO2(0.74%), H3PO4(35.52%),CaSO
4(0.18%), NaCl (0.09%), H2SiO3(13.48%), C (6.19%)

Cheers

Awesome thanks so much

 

[f-e]

That's a long article... I tried to find what plant they ashed and how, but got tired.

Analysing ashes (usually ashed with nitric) is a fairly robust method of tissue analysis. The numbers above look rather specific, so where they came from is interesting. What you expect between plants is quite a spread. So I hope it's an average of something.

Potash makes good sense. Lots of calcium there, and Mg that can't be ignored. It's useful info. The plant probably better represents what a plants needs, before it's ashed though. Making composting a good method.