Table 1 Composition and concentrations (mM) of nutrient solutions used to water the pots

KNO₃

5

2.5

1.25

Ca(NO₃)₂

3.125

2.5

2.5 

MgSO₄

1.25

0.5

0.25

MgCl₂

3.75

-

-

CaCl₂

-

-

0.25

H₃BO₃

0.035

0.0575

0.0575

MnSO₄

0.0125

0.025

0.0125

ZnSO₄

0.0075

0.01

0.005

CuSO₄

0.00175

0.0025

0.00225

(NH₄)₆Mo₇O₂₄

0.00175

-

0.00075

CoCl₂

0.00025

0.00025

0.00025

NaFe(III)EDTA

0.5

0.75

0.25