ya its quite difficult in the hydro... im trying to make the mixes w half the nitrogen and supply the other half of the nitrogen via nitric acid w a ph controller... even w the passive uptake in calcium its hard to get the amount of calcium u need into the mix without adding too much nitrogen... by that i mean if u were to use calcium nitrate for ur calcium and u need lets say 20% calcium... ur already at like 15% nitrogen... and the nitric acid needed for ph might push u over where u want to be for N. calcium chloride helps but i tread lightly w the chloride... im not really sure what a toxic ppm level of chloride is (iv read a lot of different opinions, some up to 150 ppm/g) and im not really sure how quickly it is absored from the solution so im worried about accumulation. do u know either of those things by chance? becuase i can only get the mixes down to about 2/3 nitrogen in the mix and 1/3 in the ph control iv been adding 1/3 of the phosporus via phosporic acid in the ph control and that has been working fine
its a cool paper to read and grasp...i just dont have the infastructure to be changing out my circulating solutons weekly or even bi weekly... i broke out the starter, veg, and refill solutions from micro and millimole into ppm form (not NPK) and posted it a few posts up if u want to save some time from haveing to do it yourself give those a peep... the way he does it is he give the start solutoin 1 time... vegatative durring veg and reprodutive mix durring what might be flower but im not 100% sure about that... it might be he carries the veg refill for most of the process and only changes to reproductive growth for the very end (last week or 2). thats just my guess and what im basically doing these days... the veg refill solutuion is very close to the 20-10-20 aswell..