STARTER

PRE-
ANTHESIS

POST-
ANTHESIS

Salt

Stock
Conc.

ml per
100 L

Final
Conc.

ml per
100 L

Final
Conc.

ml per
100 L

Final
Conc.

Ca(NO₃)₂

1 M

100

1 mM

100

1 mM

50

0.5 mM

K(NO₃)

2 M

50

1 mM

200

4 mM

100

2 mM

KH₂PO₄

0.5 M

100

0.5 mM

100

0.5 mM

100

0.5 mM

MgSO₄

1 M

50

0.5 mM

50

0.5 mM

25

0.25 mM

K₂SiO₃

0.1 M

100

0.1 mM

100

0.1 mM

0

0 mM

FeCl₃

50 mM

20

10 µM

5

2.5 µM

5

2.5 µM

Fe-HEDTA

100 mM

25

25 µM

5

5 µM

5

5 µM

MnCl₂

60 mM

5

3 µM

10

6 µM

5

3 µM

ZnCl₂

20 mM

30

6 µM

15

3 µM

15

3 µM

H₃BO₃

40 mM

5

2 µM

2.5

1 µM

1

0.2 µM

CuCl₂

20 mM

15

3 µM

10

2 µM

10

2 µM

Na₂MoO₄

1 mM

10

0.1 µM

5

0.05 µM

5

0.05 µM

HNO₃

1 M

5

50 µM

5

50 µM

5

50 µM

Add HNO₃ as needed to control pH to about 5.6

CHANGES MADE ON 21 JUNE 99:
    COPPER TRIPLED IN STARTER SOLUTION;
    ZINC INCREASED BY 50%;
    NaMo STOCK SOLUTION INCREASED FROM 0.6 TO 1 mM TO MAKE IT ROUND NUMBER

CHANGES MADE 01 SEPT 00:
    DOUBLED THE STOCK CONCENTRATION OF H₃BO₃;
    QUADRUPLED MgSO₄