The effects of sunflower (Helianthus annuus L.) on the yield and yield components of leaf fertilizer applied in different development periods in non-irrigation conditions in Çukurova

The purpose of this research; In addition to the basic fertilizer applied in sunflower cultivation, macro and micro element mixture used in different development periods is the determination of the effect of the foliar fertilizer on the yield and fat ratio as well as the various yield components. This research; In 2019, it was conducted in a farmer's field in Dutluca village of Saricam district of Adana province in Cukurova region. The aim of this study was to determine the effect of different application times of the leaf fertilizer 1. Area without foliar fertilizer (Control). 2. 4 leaf period (V4), 3. 4 leaf period (V4) + first table formation (R3) , 4. 4 leaf period (V4) + first flowering period (R5.1), 5. 4 leaf period (V4) + %50 flowering cycle (R5.5) on yield and yield components of sunflower. METEOR CL variety was used in the study: the leaf fertilizer used in the application is macro and micronutrient liquid leaf fertilizer. The experiment was designed as randomized block design with three replications. In the study; The effect of foliar fertilization on plant height, table diameter, seed internal rate and protein content of sunflower was found to be statistically significant. Also; Sunflower seed retention rate of leaf fertilizer applied, hectolitre, moisture content, yield, oil and oil yield rates were not found to be statistically significant. According to the results of the research; highest grain yield 4 leaf period (V4) + first table formation (R3) with 370.3 kg/da app from the, repeating average of the lowest grain yield was obtained from Control application with 338 kg/da. The longest plant length was measured with 4 leaf period (V4) + %50 flowering cycle (R5.5) with 192.6 cm, and the shortest plant length repetition average was measured with NP (Control) with 185.3 cm. The highest hectoliter was obtained from 4 leaf period (V4) + first table formation (R3) with 38.9, the lowest hectoliter was obtained from Control with 34.8. In terms of fat content, the highest mean value was obtained from 4 leaf period (V4) + first table formation (R3) with 40.7% and the lowest value was obtained from Control with 38.4%. In terms of table diameter, the mean value of the repetition was highest with 23.4cm 4 leaf period (V4) + first flowering period (R5.1) and the lowest value was obtained with Control with 18.4 cm.