İç Anadolu Bölgesi’nde Potasyum ve Magnezyum Uygulanan Mısırın Zea mays var. intendata Yaprak Besin Elementi İçeriklerindeki Değişimler

Bu araştırma, toprağa ayrı ayrı ve belli kombinasyonlarda uygulanan potasyum 0, 40, 80, 120 kg K2 O ha-1; potasyum sülfat; % 50 K2 O ve magnezyum 0, 20, 40, 60 kg MgO ha-1; magnezyum sülfat; % 16 MgO ’un İç Anadolu’da yarı kurak iklim koşullarında 2009 ve 2010 yıllarında yetiştirilen mısırın yapraklarındaki bazı besin elementlerine N, P, K, Ca, Mg, Fe, Zn etkilerini belirlemek amacıyla yapılmıştır. Denemeler tesadüf bloklarında faktöriyel deneme deseninde dört tekerrürlü olarak planlanmıştır. Toprak analizleri yapılan deneme alanlarına K ve Mg’lu gübreler ekimde tek seferde tabana verilmiştir. Araştırma sonuçlarına göre, tek başına verilen K yaprağın besin elementlerini artırmış, K ile P, Fe ve Zn arasında sinerjik ilişkiler belirlenmiştir. Diğer taraftan, Mg ile P ve Fe arasında sinerjik etkileşimler saptanmıştır. Genellikle K ile Mg’un birlikte uygulanması topraktaki antagonistik ilişkileri azaltarak yaprakta daha yüksek besin elementlerinin bulunmasını sağlamıştır. Denemenin ilk yılında yaprağın besin element içerikleri ikinci yıldakilerden daha yüksek bulunmuştur.

Anahtar Kelimeler:

Mısır, Yaprak, Potasyum, Magnezyum, Besin elementleri

Changes in Nutrient Concentrations of Maize Zea mays var. intendata Leaves under Potassium and Magnesium Applications in Central Anatolia

This research was carried out to determine the effects of potassium 0, 40, 80, 120 kg K2O ha-1; as potassium sulfate; 50% K2O and magnesium 0, 20, 40, 60 kg MgO ha-1; as magnesium sulfate; 16% MgO applied to the soil, either separately or in various combinations, on some nutrients N, P, K, Ca, Mg, Fe, Zn in maize leaves grown under field conditions in semi-arid Central Anatolia in Turkey in 2009 and 2010. The study was designed as a factorial arrangement in randomized block design with four replications. After soil analysis of the study areas, K and Mg-fertilizers were applied at sowing. The results showed that the K applications alone could increase the nutrient concentrations of the leaves, and synergic relations were found between K and P, Fe, or Zn. Synergic relations were also found between Mg and P or Fe. Generally, combined applications of K and Mg resulted in higher nutrient concentrations in the leaves by ameliorating the antagonistic effect of poor soil K-Ca-Mg ionic balances. The leaf nutrient concentrations were generally higher in the first year 2009 than that of the experiment than in the second year 2010

Keywords:

Maize, Leaf, Potassium, Magnesium, Nutrients,

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