[QUOTE=GpsFrontier;7528]Hello Saeid,
The Holly Grail, well I'm not sure there really is a Holly Grail of hydroponic
nutrients (per-say). Different plants have different
nutrient requirements, so there isn't a one recipe fits all plants (like a one size fits all shirt). If your going to make your own, you'll probably want to make them specifically for the plants your growing, rather than just a general use nutrient/recipe. Also if you plan to make your own nutrients, be prepared to learn some chemistry. Even though I haven't ventured into making my own nutrients yet, many people do. I do have some things I can post that will hopefully help you.
Thanks for that.
I'm downloading the calulator right now.
Here's something I found that's pretty useful too. I don't think one needs to learn Chemistry to mix certain amount of a salt in water. But it certainly wouldn't hurt. Here it is:
Hydroponic nutrient recipes
N - P - K
To make 1.00 gallon(s) of VEGETATIVE NUTRIENT 9.5 - 5.67 - 11.3
Use 6.00 grams of Calcium NitrateCa(NO3)2
2.09 grams of Potassium Nitrate KNO3
0.46 grams of Sulfate of Potash K2SO4
1.39 grams of Monopotassium Phosphate KH2PO4
2.42 grams of Magnesium Sulfate MgSO4 * 7H2O
0.40 grams of 7% Fe Chelated Trace Elements See Trace Box
To make 1.00 gallon(s) of FRUITING NUTRIENT8.2 - 5.9 - 13.6
Use 8.00 grams of Calcium NitrateCa(NO3)2
2.80 grams of Potassium Nitrate KNO3
1.70 grams of Sulfate of Potash K2SO4
1.39 grams of Monopotassium Phosphate KH2PO4
2.40 grams of Magnesium Sulfate MgSO4 * 7H2O
0.40 grams of 7% Fe Chelated Trace Elements See Trace Box
To make 1.00 gallon(s) of FLOWERING NUTRIENT 5.5 - 7.97 - 18.4
Use 4.10 grams of Calcium NitrateCa(NO3)2
2.80 grams of Potassium Nitrate KNO3
0.46 grams of Sulfate of Potash K2SO4
1.39 grams of Monopotassium Phosphate KH2PO4
2.40 grams of Magnesium Sulfate MgSO4 * 7H2O
0.40 grams of 7% Fe Chelated Trace Elements See Trace Box
Chelated Trace Element Mix
Iron Fe 7.00%
Manganese Mn 2.00%
Zinc Zn 0.40%
CopperCu 0.10%
Boron B 1.30%
Molybdenum Mo 0.06%
Please follow these directions carefully:
Fill your empty reservoir 75% full with clean, hot water. Multiply the above gram weigths of each specific salt
by however many gallons your reservoir holds as these ratios are based upon making only one gallon of nutrient
solution. Dissolve each salt, one at a time - make sure each salt dissolves entirely before adding the next.
WARNING:
These elemental salts are extremely reactive in their native states - use eye protection when handling
them and avoid contact with skin. Follow the directions given to you by the supplier. Avoid using
inaccurate “kitchen” type scales - your crop is worth it.
Now, off to find all these Chemicals.