Turkish Journal of Nuclear Sciences

2791-7185

T.C. Türkiye Enerji, Nükleer ve Maden Araştırma Kurumu

Metrology, Applied and Industrial Physics

Metroloji,Uygulamalı ve Endüstriyel Fizik

ORTA ANADOLU KURU KOŞULLARINDA KIŞLIK VE YAZLIK OLARAK EKİLEN ARPA’DA FARKLI GELİŞME DÖNEMLERİNE AİT AZOT ALIMLARININ N-15 TEKNİĞİ İLE İNCELENMESİ

THE INVESTIGATION ON NITROGEN UPTAKE AT DIFFERENT GROWING STAGES OF WINTER AND SUMMER CULTIVATED BARLEY UNDER DRYLAND CENTRAL ANATOLIA CONDITIONS USING N-15 ISOTOPE TECHNIQUE

Akın

Ali İbrahim

Turkish Atomic Energy Authorithy

06 26 2019

31 1 1 13 11 30 2018 06 26 2019

1981

Turkish Journal of Nuclear Sciences

OrtaAnadolu kuru koşullarında kışlık ve yazlık olarak yetiştirilen arpa (Hordeum vulgare) bitkisinin farklıbüyüme dönemlerinde, H1: başaklanma, H2: dane dolum ve H3:hasat’a ait verim, N-15 alımları ve gübre kullanma randıman değerlerinibelirlemek amacıyla bir tarla denemesi kurulmuştur. Deneme tesadüf bloklarıdeneme desenine göre bölünmüş parseller olarak 4 tekrarlı kurulmuştur. Kışlıkarpa Ekim’de ve yazlık arpa Mart’ta, ekim oranı 200.0 kg/ha ve sıra arası 20.0cm olarak ekilmiştir. Kışlık arpa’ya 40.0 kgN/ha hesabıyla 3.02 % N-15 atomexcess ve yazlık arpa’ya 40.0 kgN/ha hesabıyla 2.80 % N-15 atom excess’likamonyum sülfat gübresi uygulanmıştır. Bitki örnekleri farklı gelişmedönemlerinde hasat edildi ve toplam azotanalizleri Kjeldahl metodu ile ve % N-15 atom excess analizleri N-15 emisyonspektrometresi ile yapılmıştır. Elde edilen sonuçlarda kışlık arpanın kurumadde verimleri (dane+sap), N-15 alımı ve N kullanma randımanı değerlerinin yazlıkarpa’dan yüksek olduğu görülmüştür. En yüksek N-15 alımı ve N kullanmarandımanı değerleri dane dolum döneminde bulunmuştur. Hasat döneminde ortalamaazot kullanma randımanı değerleri kışlık ve yazlık arpa için sırasıyla % 66.0ve % 24.1 bulunmuştur.

In orderto determine the yield, N-15 uptake and nitrogen use efficiency values at thedifferent growing stages which were H1: heading, H2: grainfilling and H3:harvesting stages of winter and summer cultivated barley (Hordeum vulgare) under dryland Central Anatolia, a field experimentwas carried out. Experiments were conducted using randomized block design assplit plot for 4 replications. Winter barley was sown in October and summerbarley was in March as 200.0 kg/ha sowing rate and 20.0 cm row spacing. Forwinter barley 40.0 kgN/ha as 3.02 % N-15 atom excess and for summer barley 40.0kgN/ha as 2.80 % N-15 atom excess ammonium sulphate fertilizer were applied.Plant samples were harvested at different growth stages and total nitrogenusing by Kjeldahl method and % N-15 atom excess using by emission spectrometeranalyses were done. Obtained results showed that the winter barley had higherdry matter yields (seed+straw), N-15 uptake and N-use efficiency values thansummer barley. The highest amount of N-15 uptake and N-use efficiency werefound at the grain filling stage. The average of nitrogen use efficiency valueswere found 66.0 and 24.1 % for winter and summer barley at harvesting stages,respectively.

N-15 isotope technique nitrogen use efficiency different growing stages barley

N-15 izotop tekniği azot kullanma randımanı farklı gelişme dönemleri arpa

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