pk 13 14

Dude, the PK 13/14 is definitely a booster PK, meaning it's a formula with a high concentration of immediately assimilable phosphorus and potassium. But ideally, you want to increase the plants' metabolism to, let's say, give them more hunger. You can do this by increasing the CO2 concentration in the grow, and also using a flowering stimulant, like Canna Boost, which is from the same brand. Those minerals combined with amino acids and seaweed extracts would really help. Good luck, bro, happy growing!

Phosphorus 13% Potassium 14% . The formula is clearly a PK boost & a PK Boost is a mid/late flowering nutrient for cannabis , it will increase the shape/size/smell/final weight of the buds. You should go with the Green Sensation From Plagron , it's a " SUPER PK " with an higher dosage and more nutrients than the PK 13-14

It is not always needed, like every PK booster you use it when the plant has enough nitrogen (dark geen leaves), but shows P or K deficiency, usually after stretch when all it's energy is going to bud production. This situation happens, when using prefertilized soil like heavy or all mix, the media usually has an excess of nitrogen, but will sometimes have a lack of P or K. Hope it helps

It is a really strong additive.. I personally use it once a week from the 3/4 week of flowering, when the plant stops stretching and starts to bulk up. I give it 0,5ml x liter with only water :)

@Mary_Joe_Anna Hi there 13,14 is a pretty hot strength especially for autos . If you must use that for flowering then I would only use 1/3 to 1/2 of what the dosage suggests