Readings Bill's in depth thread about cheap nutrient lines, got me interested in MKP. Also known as Monopotassium Phosphate amongst other names.
As a powder, it's 0 - 52 - 34 (oxides, like typical labeling)
I mixed it at 100g per 650ml of water.
This made a 0 - 3 - 3.7 elemental solution. Something like 0 - 7 - 4.6 as oxides
I could only mix it this strong. About 20% more and it wouldn't dissolve at 20c. I wouldn't put this in the fridge, as some salt would come out of solution.
It was easily available online, in any quantity.
Most boosters are heavier on the K than P. They are aimed for a little later in bloom. P is something you load up with early. It helps build strong roots and frames, adding branching, then size to the buds, that K fills in.
Many bottled feeds think 30-40ppm P is ample. While 100ppm is actually average, and often targeted specifically. This solution, used 1ml per liter, will offer a 30ppm bump.
The range of P numbers seen commercially, is really quite vast. I have included an image demonstrating this.
If anyone would like to check my mixing figures, a little confirmation would be nice. Before anyone gets chance to start mixing their own.
Thanks BillFarthing
As a powder, it's 0 - 52 - 34 (oxides, like typical labeling)
I mixed it at 100g per 650ml of water.
This made a 0 - 3 - 3.7 elemental solution. Something like 0 - 7 - 4.6 as oxides
I could only mix it this strong. About 20% more and it wouldn't dissolve at 20c. I wouldn't put this in the fridge, as some salt would come out of solution.
It was easily available online, in any quantity.
Most boosters are heavier on the K than P. They are aimed for a little later in bloom. P is something you load up with early. It helps build strong roots and frames, adding branching, then size to the buds, that K fills in.
Many bottled feeds think 30-40ppm P is ample. While 100ppm is actually average, and often targeted specifically. This solution, used 1ml per liter, will offer a 30ppm bump.
The range of P numbers seen commercially, is really quite vast. I have included an image demonstrating this.
If anyone would like to check my mixing figures, a little confirmation would be nice. Before anyone gets chance to start mixing their own.
Thanks BillFarthing