Comparison of the effect of animal manure and chemical fertilizer (urea) on the growth and yield of Kurdistan strawberry cultivar

Supervisor: Mohammad Ismail Amiri, Advisor: Mohammad Sarsifi, Student: Amir Morouti,
Government – Ministry of Science, Research, and Technology – Zanjan University – Faculty of Agriculture and Natural Resources – 2016 – [M.Sc.]

In order to investigate the effect of chemical fertilizer (urea) and rotten animal manure (cow) on vegetative, reproductive, physiological traits and content of elements in strawberry fruit of Kurdistan cultivar, an experiment was conducted in 2015. The factorial experiment was performed in a randomized complete block design with 9 treatments in 3 replications and 12 plants for each treatment. Urea was applied at levels of 0, 10, 20 g of pure nitrogen and animal manure at three levels of 0, 0.5 and 1 kg of rotted dry animal manure (cow) in one meter longitudinal groove of the plant foot. The results showed that the effects of simple animal manure and urea on all traits except the number of creeping stems and fruit pH were significant at the level of 1 and 5%. Also, with increasing use of animal manure, the concentration of mineral elements (except fruit calcium) increases. By increasing the levels of each of the animal manure and urea treatments up to 1 kg and 20 g, the number of leaves (15.32 and 13.83, respectively), leaf area (38.25 and 44.1 cm), petiole length (8.8 cm) 16 and 16.3), crown diameter (6.2 and 6.2 mm), length of fruiting period (23 and 22 days), time of first harvest (), time of first flowering () Number of fruits per plant (10.5 and 9.5), fruit weight per plant (8.84 and 9.87 gr), plant yield (88.45 and 97.04 gr), titratable acidity (0.72 and 0.51%), fruit nitrate concentration ( 584.11 and 590.11) and fruit nitrogen concentrations (1.98 and 2.20%), respectively, while increasing the concentration of other elements of iron, phosphorus, potassium and magnesium in the fruit was observed only in increasing the level of animal manure treatment. The interaction effects of these two fertilizers on leaf number, number of creeping stems, fruit weight per plant, titratable acidity and fruit pH were not significant.