Effects of Increasing Rates of Potassium and Magnesium Fertilizers on the Nutrient Contents of Sunflower Leaf

Authors : Mehmet ZENGİN

Pages : 51-61

View : 284 | Download : 569

Publication Date : 2016-01-11

Article Type : Research Paper

Abstract :This research was carried out to determine the effects of potassium sulphate insert ignore into journalissuearticles values(50% K 2 O; 0, 4, 8, 12 kg K 2 O da -1 ); and magnesium sulphate insert ignore into journalissuearticles values(16% MgO; 0, 2, 4, 6 kg MgO da -1 ); fertilizer applications in a calcareous loamy soil on the contents of macro- insert ignore into journalissuearticles values(N, P, K, Ca, Mg, S); and micro-nutrients insert ignore into journalissuearticles values(Fe, Zn, Mn, Cu, B); in sunflower leaves under field conditions in Altınekin District, Konya Province, in 2009 and 2010. A factorial experiment design in randomized blocks with 4 replications of each treatment was used. After conducting soil analysis, a single base application of K and Mg fertilizers were applied during sowing . Applications of K alone in increasing doses increased the some nutrient contents in the leaves, and synergic relationships were determined between K and Fe or Mn . Similarly, applications of Mg alone also increased some nutrient contents in the leaves, and synergic relationships were determined between Mg and Mn or B. Generally, combined applications of K with Mg resulted in maximal nutrient contents in the leaves by reducing the antagonistic effect of Ca, K, and Mg cations in the soil on plant uptake of nutrients.
Keywords : Potassium, Magnesium, Sunflower, Leaf, Nutrient elements