Table 1 Recommended nutrient concentrations in the nutrient solution proposed by Hoagland and Arnon and nutrient concentrations estimated from the optimal nutrient content in the dry matter for Dendrobium Tubtim Siam and Phalaenopsis Taisuco Swan
Nutrients | Nutrient solution proposed by Hoagland & Arnon (1950) | Nutrient solutions proposed from the optimal concentrations of nutrients | |
|---|---|---|---|
Dendrobium Tubtim Siam | Phalaenopsis Taisuco Swan | ||
mM | |||
N | 15.00 | 14.63 | 16.19 |
P | 1.00 | 0.80 | 0.65 |
K | 6.00 | 10.68 | 11.16 |
Ca | 5.00 | 3.38 | 2.73 |
Mg | 2.00 | 2.77 | 1.25 |
S | 2.00 | 0.26 | 0.57 |
µM | |||
B | 46.30 | 48.53 | 56.65 |
Cu | 0.30 | 1.14 | 0.50 |
Fe | 17.92 | 44.35 | 25.04 |
Mn | 9.10 | 79.56 | 49.66 |
Zn | 0.70 | 45.63 | 25.16 |
TIC (mM) | 31.07 | 32.73 | 32.73 |
EC (mS cm− 1) | 2.17 | 2.28 | 2.28 |
Ψo (Mpa) | 0.0706 | 0.0743 | 0.0743 |