Determination of biological nitrogen fixation capacities of winter and spring lentil varieties by using 15N methodology

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dc.contributor.authorAkın, Ali İbrahim
dc.contributor.departmentTAEK-SANAEMtr_TR
dc.date.accessioned2018-07-30T08:20:35Z
dc.date.available2018-07-30T08:20:35Z
dc.date.issued2000-10
dc.descriptionI. Avrasya Nükleer Bilimler ve Uygulamaları Konferansı : 23-27 Ekim 2000. İzmir, Türkiye.tr_TR
dc.description.abstractIn order to determine the biological nitrogen fixation capacities of winter and spring varieties of lentil which have of agronomic importance under the Central Anatolia region, the field experiments (winter and spring) were carried out. In both experiments, the effects of two different inoculants and different harvesting times on the biological nitrogen fixation capacities of lentil varieties, were investigated. The field experiments were conducted using by randomized block design as split-split plot for 4 replications. Barley was selected as the reference crop and 20 cm row spacing were used for lentil and barley. Inoculations were done immediately before sowing. 10.0 kgN/ ha for lentil varieties as 10.0 % 15N atom excess and 40.0 kgN/ ha for barley (reference crop) as 2.0 % 15N atom excess ammonium sulphate fertilizer were applied. In addition, 60.0 kgP20 5/ ha were applied as triplesuperphosphate for all treatments. Plants were harvested at the different growth stages and than plant materials prepared for the analysis. Total nitrogen and % 15N atom excess analysis were done by Kjeldahl method and Emission spectrometer, respectively. The amount of nitrogen fixation capacities of winter and spring lentil varieties were calculated according to the A-Value method (IAEA 1990). The results showed us that the winter varieties of lentil had higher dry matter yields and nitrogen fixation capacities than the spring varieties. Inoculation treatments had no statistically significant effects on the percentage of nitrogen derived from atmosphere (% Ndfa) and the amount of fixed nitrogen (kgN/ ha) for both experiments. In comparison between the harvesting times, the highest amount of fixed nitrogen was found at the pod formation stage for all cultivars. The average amounts of % Ndfa and fixed nitrogen (kgN/ ha) were 75.0 and 70.0 for winter cultivars, 70.0 and 45.0 for spring cultivars, respectively.tr_TR
dc.identifier.citationAkın, A., (2000). Determination of biological nitrogen fixation capacities of winter and spring lentil varieties by using 15N methodology. I. Eurasia Conference on Nuclear Science and Its Application, Presentations, Vol 1, (s. 458-462). 23-27 October 2000. İzmir, Turkey.tr_TR
dc.identifier.endpage462tr_TR
dc.identifier.startpage458tr_TR
dc.identifier.urihttp://kurumsalarsiv.tenmak.gov.tr/handle/20.500.12878/729
dc.language.isoengtr_TR
dc.publisherTurkish Atomic Energy Authoritytr_TR
dc.relation.journalI. Eurasia Conference on Nuclear Science and Its Application : Presentations, 23-27 October 2000. İzmir, Turkey.tr_TR
dc.rightsinfo:eu-repo/semantics/openAccesstr_TR
dc.subjectBiological nitrogen fixation capacitiestr_TR
dc.subjectBiyolojik azot fiksasyon kapasiteleritr_TR
dc.subjectDeterminationtr_TR
dc.subjectBelirlemetr_TR
dc.subjectLentil varietiestr_TR
dc.subjectMercimek çeşitleritr_TR
dc.subject15N methodologytr_TR
dc.subject15N metodolojitr_TR
dc.titleDetermination of biological nitrogen fixation capacities of winter and spring lentil varieties by using 15N methodologytr_TR
dc.typeconferenceObjecttr_TR
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I. Eurasia conference on nuclear science and its application : presentations, 23-27 October 2000. İzmir, Turkey.