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. 2023 Jan 17;12(3):422. doi: 10.3390/plants12030422

Table 2.

Concentrations of single salt stock solutions and the composition of each of the treatment solutions.

Fertilizer Salt Formula Stock Solution Molarity (mol∙L−1) Volume of Stock Solution Added (mL/60 L)
Control -N z -P -K -Ca -Mg -S -Fe -Mn
Potassium nitrate KNO3 1 200 200 200 200 200 200 200
Calcium nitrate tetrahydrate Ca(NO3)2
4H2O
2 100 100 100 100 100 100 100
Potassium phosphate monobasic KH2PO4 1 20 20 20 20 20 20 20
Magnesium sulfate heptahydrate MgSO4∙7H2O 1 100 60 100 100 100 100 100
Potassium chloride KCl 1 130 20
Calcium chloride dihydrate CaCl2∙2H2O 1 100
Sodium nitrate NaNO3 1 200 200
Sodium phosphate monobasic monohydrate NaH2PO4∙H2O 1 50 50 0 70 50 50 50 50 50
Sodium sulfate anhydrous Na2SO4 1 100
Magnesium chloride hexahydrate MgCl2∙6H2O 1 100
Iron diethylenetriaminepentaacetic acid FeEDTA 0.1 25 25 25 25 25 25 25 25
Manganese chloride tetrahydrate MnCl2∙4H2O 0.04 20 20 20 20 20 20 20 20
Zinc chloride ZnCl2 0.02 5 5 5 5 5 5 5 5 5
Copper sulfate CuSO4 0.02 2 2 2 2 2 2 2 2 2
Boric acid H3BO3 0.1 25 25 25 25 25 25 25 25 25
Sodium molybdate dihydrate Na2MoO4
2H2O
0.01 2 2 2 2 2 2 2 2 2

z the “-” sign denotes the missing element in each of the respective treatments.