IMPACT OF ADDING ORGANIC FERTILIZER EXTRACT AND ASCORBIC ACID ON THE GROWTH AND YIELD OF TWO STRAWBERRY CULTIVARS (Fragaria Ananassa Duch.)

Document Type : Research Paper

Author

Faculty of Agriculture, Samarra University

Abstract
A pot experiment was conducted in the plastic homes of the Faculty of Agriculture at Samarra University during the agricultural season of 2023 . The purpose of the experiment was to investigate the impact of three different ratios of organic fertilizer extract (decomposed cow dung) ((0:0), (1:1), (1:2)) and three different concentrations of ascorbic acid (vitamin C) (0, 30, and 60 mg.L-1) on the growth and yield of two strawberry varieties, Albion and Rubygem.. The experiment was carried out using the design of complete random sectors RCBD with three repeaters and three seedlings for each experimental unit.
The findings indicated that the inclusion of ascorbic acid (vitamin C) and organic fertilizer extract (decomposed cow dung) had a substantial impact on the attributes of strawberry plants. The most notable figures recorded at the 5% probability level were 26.92 cm for plant height, 59.77 cm2 for leaf area, 33.57 g for fruit weight, 17.67 plant-1 for the number of fruits, 259.08 g. plant-1 for fruit weight, 2.69% for the percentage, 0.85% for another percentage, and 2.23% for a third percentage., dry weight of plant, number of fruits in the plant, plant yield, nitrogen level in leaves, phosphorus level in leaves and potassium level in leaves respectively as a result of the addition of organic fertilizer extract (decomposed cow dung) while the weight of the fruit reached its highest level (15.56 g) when ascorbic acid was added to a potential level of 5%. Albion excelled in all traits except for the nitrogen level in the leaves and the potassium level in the leaves, while the Rubygem only excelled in the nitrogen level in the leaves and the potassium level in the leaves

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