author(s)
Dr. Mohamed AbdEl- Aziz, Dr. Waseem Yousef Adla and Assem Mohamad Ibrahim

abstract
The research was conducted in 2018 growing season at Jeb Ramleh Research Station – Al-Ghab Research Center - General Authority of Scientific Agricultural Research. The objective was to investigate the variation of some Physiological and Productivity Traits of Cotton Line 124 (Gossypium hirsutum L.) depending on three types of organic and biological fertilizers (Bacillus, Humic acid and amino acids). Bacillus had three fertilization methods, While each of Humic acid and each type of Humic fertilizers had four fertilization methods (Without, Soaking seeds, Plant irrigation and Leaf spraying). Studied traits included: Plant Wet Weight (g/plant), Plant Dry Weight (g/plant), Plant Growing Rate (g/m²/week), First Pick Percentage (%) and Cotton Yield (g/plant). Split plot design was used. First factor (Bacillus) occupied the main plots, while the second factor (Humic acid) occupied the split plots, and the third factor (amino acids) occupied the split plots. Results showed no significant differences between single fertilizers additions comparing to the control, whereas there was significant superiority of the interaction between Bacillus plant irrigation×Humic acid plant irrigation Amino acids leaf spraying comparing to the control in terms of all studied traits, and gave maximum values (PWW 201.05g/plant), (PDW 78.91g/plant), (PGR 64.79 g/m²/week) and (FPP 71.23%).