| Abstrakt: |
Two field experiments were conducted at the Experimental Farm, Abees Region, Faculty of Agriculture, Saba Basha, Alexandria University, Alexandria Governorate, Egypt, during 2021/2022 and 2022/2023 seasons to investigate the response of sugar beet (Karam) to humic acid and some Biositmulants substances under saline soil conditions. The experimental design was a split-plot design with three replicates, where three humic acids (HA) levels (0, 12 and 24 kg HA/ha) were allocated to the main plots, and 8 biostimulants treatments, randomly arranged within the sub-plot (Untreated (Zero control), Salicylic acid 100 mg / L, Fulvic acid 1.2 kg /ha, Hydroxyproline 1000 mg/L, Salicylic acid 100 mg / L + Fulvic acid 1.2 kg /ha, Salicylic acid 100 mg /L + Hydroxyproline 1000 mg/L), Fulvic acid 1.2 kg/ha + Hydroxyproline 1000 mg/L, and Salicylic acid 100 mg / L + Fulvic acid 1.2 kg /ha + Hydroxyproline 1000 mg/L). The results exposed that soil application of HA, spraying of bio stimulators and their interaction significantly affected the growth characteristics of sugar beet under salinity conditions, where to get the highest growth of sugar beet, it could be fertilized sugar beet with HA at a rate of 24 kg/ha as a soil application along with sprayed some of fluvic acid (FA), hydroxyproline. [ABSTRACT FROM AUTHOR] |
