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

Year 1999, Volume: 13 Issue: 18, 118 - 127, 15.12.1999

Mehmet Zengin Cevdet Şeker

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

Iron, zinc, nitrogen, soil texture, spinach

Supporting Institution

SELÇUK ÜNİVERSİTESİ

Yazlık Ispanağın Demir ve Çinko İçerikleri Üzerine Değişik Azot Kaynaklarının Etkileri

Abstract

Bu araştırma, farklı dozlarda uygulanan (0, 10, 20, 40 ve 60 kg N/da) amonyum nitrat, amonyum sülfat ve üre gübresi ile ahır gübresinin (0, 1000, 2000, 4000 ve 6000 kg/da) sera şartlarında yazlık olarak, killi tın ve kumlu tun tekstüre sahip topraklarda yetiştirilen ıspanak bitkisinin (Spinacia oleracea L.) yaprak ve yaprak saplarımn Fe ve Zn kapsamlarına olan etkilerini belirlemek amacıyla yapılmıştır. Toprak tekstürü, gübre çeşidi ve gübre dozlarının bitkinin Fe ve Zn kapsamı üzerine etkileri istatistiki olarak % 1 seviyesinde önemli bulunmuştur. Demir için killi tın, çinko için ise kumlu tın toprağın etkisi daha yüksek olmuştur. Yaprak ve yaprak sapının Fe ile Zn kapsamı üzerine inorganik gübreler daha yüksek etkide bulunmuşlardır. Artan azot dozları bitkinin Fe ve Zn kapsamları üzerinde değişken etki göstermişlerdir. Yaprağın ortalama Fe kapsamı (58.89 ppm) yaprak sapından (66.85 ppm) daha düşük, yaprağın ortalama Zn kapsamı (49.65 ppm) ise yaprak sapından (36.00 ppm) daha yüksek elde bulunmuştur.

Keywords

: Demir, çinko, azot, toprak tekstürü, ıspanak, .

Supporting Institution

SELÇUK ÜNİVERSİTESİ

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