Action of humic acid on promotion of cucumber shoot growth involves nitrate-related changes associated with the root-to-shoot distribution of cytokinins, polyamines and mineral nutrients

1. Mora, V.
2. Bacaicoa, E.
3. Zamarreño, A.-M.
4. Aguirre, E.
5. Garnica, M.
6. Fuentes, M.
7. García-Mina, J.-M.