Determination of nutritional status of sunflower (Helianthusannuus L.) plant in Çorlu district of Tekirdağ province by plantand soil analysis

In this study, the sunflower (Helianthus annuus L.) grown in the Çorlu district of Tekirdağ Province was examined in order to determine the plant nutrition status of the plant by conducting plant and soil analyses. For this purpose, some macro and micro nutrients were analyzed in leaf samples and soil samples taken from 18 different sunflower (Helianthus annuus L.) fields from Çorlu district of Tekirdağ province. The results of the analysis were compared with the limit values of the nutrients, and the status of the plant nutrients and nutritional problems of the examined fields were tried to be determined. According to the findings; N, P, K, Ca, Mg, Fe, Cu, Zn and Mn contents of the sunflower plant whose leaf samples were examined. 1.00%-2.38%, respectively; 0.12%-0.048%; 1.87%-4.45%; 3.11%-5,32%; 0.43%-0.99%; 255-1026 mg kg-1; 14.11-27.49 mg kg-1; It was found between 8.55-29.18 mg kg-1 and 29.29-108 mg kg-1. N deficiency was found in 72% of these values, P in 100%, K in 11%, Zn in 78% and Mn in 11%. Calcium nutrient element was found to be high in all samples. Magnesium element was found to be in sufficient level in sunflower plant leaf samples taken from Çorlu district of Tekirdağ province. In the samples taken, 83% sufficient level of iron element, 17% excess and 95% sufficient level of copper element and 5% excess were detected. Keywords: Sunflower, soil analysis, plant analysis, macro nutrient element, micro nutrient element