Foliar Application of two organic Fertilizers on Two Strawberry Cultivars (Fragaria × ananassa Duch.)

Abstract

This study was conducted during growing season 2019-2020, in order to evaluate the impact of organic fertilizers on growth and development of two strawberry cultivars (Fragaria X ananassa Duch.). where two different organic fertilizers humic acid and seaweed with three levels (0.0, 2.0 and 4.0) mL.L-1 were foliar sprayed at different growth stages of two strawberry cultivars has been used; Albion and Rubygem. Randomized complete block design (RCBD) was implemented with three replications. The results show that Robygem was recorded the higher leaf area (96.27 cm2), root fresh weight (61.25 g) and anthocyanin content (41.92 Mg/100g F.Wt.) when compared with Albion cultivar. While Albion was demonstrated the maximum value for root dry weight (41.71 g), phosphorus and potassium percentage (0.62% and 1.63%) % respectively, the number of flowers. Plant-1 (36.55 flower. plant-1), fruit weight (11.11 g) and yield per plant (363.82g). Humic acid led to significant increases in yield. plant-1 (295. 31g.plant-1) compared with Robygem cultivar. Moreover, organic fertilizers had no significant effect on the leaf area, root fresh weight, root dry weight, phosphorus percentage, potassium percentage, fruit weight and anthocyanin content. Meanwhile, humic acid had a significant effect on increasing plant yield compared with seaweed extract.