Titrimetric determination of nutrients?

[vead]

Hello
I need some help. I am making nutrient solution for plant. plant are growing in water without soil
1. MgSo4 0.65 gm
2. H3Bo3 0.30 gm
3.KH2So4 0.37 gm
4. K2So4 0.45 gm

above 4 nutrients are mix in 1 L water . Plant will absorb all nutrients according their needs

How to calculate that how many MgSo4 will be absorb by Plant in 10 days ? I have to take sample of nutrient solution after 10 days. than I have to do some test

I want to ask something.
1) can we calculate how many MgSo4 will be absorb by Plant in 10 days ?
2) I am mixing all nutrients in solid form. can we calculate in solid form how many MgSo4 will be absorb by Plant in 10 days ?

 

[Borek]

On a very general level if you determine the initial and final amount of Mg in the solution you will have the answer. However, I am not convinced titration will be easy, initial solution is rather diluted. You can try complexometric titration with EDTA, but it may prove challenging.

 

[vead]

hello
Thanks for help. plant does not absorb all nutrient very fast. I want to some lab test to measure amount of nutrient present in water but I don't know to test each nutrient ?

Hydroponic nutrient sloutaion
1) Boric Acid (H3BO3): 0.028g
2) Calcium Nitrate (Ca(No3)2): 0.002 gm
3) Potassium Nitrate (KNO3): 0.075g
5) Monopotassium Phosphate (KH2PO4):0.0 37gm
6) Magnesium Sulphate (MgSO4 * 7H2O): 0.064g
7) Sulphate of Potash (K2SO4):0.0 45gm
8) Zinc Sulphate (ZnSO4): 0.0022gm
9)Manganese Sulphate (MnSO4): 0.015g
10)Copper Sulphate (CuSO4): 0.0008gm

I don't understand how to measure amount of each nutrients present in hydroponic solutions after 15 days ?