THE EFFECTS OF PLANT ACTIVATORS ON THE YIELD, QUALITY AND NUTRIENT UPTAKES IN THE ORGANIC LEEK PRODUCTION

This study was conducted to compare the yield, yield parameters and nutrient contents of leaves and pseudostems of leeks grown organically with those of leeks grown conventionally and control (received no treatments). In the study, three different plant activators (Crop-Set, Soil-Set and Manda 31) were used to perform organic production. At the end of the study conducted for two years, it was determined that the yield, plant weight, plant length, pseudostem length, and pseudostem diameter varied among treatments between 4.6-8.4 tons/da, 136.47-252.44 g, 107.3-123.6 cm, 38.2-42.7 cm and 15.93-21.57 mm respectively. Moreover, while the amounts of nitrogen, phosphorus and potassium in the leaves varied between 2.32-3.42%, 0.61-0.71% and 3.82-4.50% respectively, their amounts in the pseudostems showed changes between 1.53-2.98%, 0.36-0.44% and 2.68-3.42% respectively.