Table 1.
Concentration of the macro nutrients used in the nutrient solution (NS).
Phenological phases | N_NO3 | N_N H4 | K+ | P | Mg2+ | Ca2+ | SO42--S |
---|---|---|---|---|---|---|---|
(mM) |
|||||||
Start of cycle - Fourth inflorescence | 9.4 | 0.6 | 6.1 | 1.6 | 1.6 | 3.2 | 2.5 |
Fourth inflorescence - Beginning of harvest | 10.1 | 0.6 | 7.7 | 1.6 | 1.9 | 3.2 | 0.7 |
Beginning of harvest – Third truss | 8.1 | 0.5 | 7.7 | 1.6 | 1.9 | 2.5 | 0.4 |
Third truss – End of the cycle | 8.1 | 0.5 | 9.2 | 1.6 | 1.9 | 2.5 | 1.7 |
The micronutrient concentrations were the following: Fe (20 μM), Mn (5 μM), Zn (2 μM), B (25 μM), Cu (0.5 μM), and Mo (0.1 μM). The starting EC value of the NS was 1.7 dS ⋅ m-1. The concentrations of Na+ and Cl- increased until the values reported into the experimental protocol.