靖の仓库

Archive for September, 2007

Saturday, September 22nd, 2007

the making of PMDD

for saving cost purpose, I planning to make fertilizer my own, this is one kind of very popular DIY fertilizer call PMDD ( Pool Man’s Dosing Drops ).
I got a recipe frm the internet,

PMDD Formula:
Magnesium sulfate - MgSO4.7H2O (Epsom salt) 55g
Potassium sulfate - K2SO4 - 23g
Potassium nitrate - KNO3 - 10g
Chelated iron - Fe - 8g
and mixed wif 500 ml of water.

But I cant get KNO3 for the moment, so I use CaNO3 to replace it. and dose the chelated iron separately.

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Magnesium sulfate - MgSO4.7H2O (Epsom salt)