Effects of Various Nitrogen Sources on Iron and Zinc Contents of Spring Spinach

Authors : Mehmet Zengin, Cevdet Şeker

Pages : 118-127

View : 4 | Download : 16

Publication Date : 1999-12-15

Article Type : Research Paper

Abstract :This study was conducted to determine the effects of nitrogen using increasing doses (0, 10, 20, 40 and 60 kg N/da ammonium nitrate, ammonium sulphate, urea and 0, 1000, 2000, 4000 and 6000 kg/da barnyard manure) on Fe and Zn contents in spring spinach plant leaf and leaf stem grown under greenhouse conditions with no heating in clay loam and sandy loam soils. The effects of soil texture, fertilizer and dose on Fe and Zn contents of spinach plant were found statistically significant at 1% level. Fe content of spinach plant grown in clay loamy soil was higher than sandy loamy soil, however Zn content of spinach plant was opposite of this. Mineral fertilization improved Fe and Zn contents of the leaf and leaf stem. Nitrogen doses differently affected these improvings. For all treatments, Fe content of plant were higher than Zn contents. Fe content (58.89 ppm) of the leaf was smaller than leaf stem (66.85 ppm), and Zn content (49.65 ppm) of the leaf was higher than leaf stem (36.00 ppm). Kind of the fertilizer and their doses affected significantly Fe and Zn content and quality of spinach plant.
Keywords : : Demir, çinko, azot, toprak tekstürü, ıspanak, .