Effects of Sowing Dates and Seeding Rates on Nitrogen and Water Use Efficiency of Facultative Wheat


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Bulut S., Çağlar Ö., Öztürk A.

GESUNDE PFLANZEN PFLANZENSCHUTZ, VERBRAUCHERSCHUTZ, UMWELTSCHUTZ, vol.74, no.2, pp.291-301, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 74 Issue: 2
  • Publication Date: 2022
  • Doi Number: 10.1007/s10343-021-00608-9
  • Journal Name: GESUNDE PFLANZEN PFLANZENSCHUTZ, VERBRAUCHERSCHUTZ, UMWELTSCHUTZ
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Agricultural & Environmental Science Database, Biotechnology Research Abstracts, CAB Abstracts, Environment Index, Food Science & Technology Abstracts, Geobase, Veterinary Science Database
  • Page Numbers: pp.291-301
  • Keywords: Facultative wheat, Sowing date, Seeding rate, Nitrogen use efficiency (NUE), Water use efficiency (WUE), WINTER-WHEAT, GRAIN-YIELD, PLANT-DENSITY, SOIL TYPE, FERTILIZER, ENVIRONMENT, COMPONENTS, TIME, TRANSLOCATION, RESISTANCE
  • Kayseri University Affiliated: Yes

Abstract

In this study, effects of different sowing dates and seeding rates on N uptake efficiency (NUE), N translocation efficiency (NTE), agronomic efficiency (AE), physiological efficiency (PE), water use efficiency for grain yield (WUEg) and water use efficiency for biomass (WUEb) of facultative wheat were investigated. As the average of cropping year, sowing dates and seeding rates, N uptake efficiency (NUE), N translocation efficiency (NTE), agronomic efficiency (AE), physiological efficiency (PE), water use efficiency for grain yield (WUEg) and water use efficiency for biomass (WUEb) values were respectively obtained as 1.17 kg Nuptake/kg Napplied, 68.5%, 36.9 kg grain/kg Napplied, 31.2 kg grain/kg Nuptake, 5.19 kg ha−1 mm−1 and 18.04 kg ha−1 mm−1.

Nitrogen and water use efficiencies decreased with delayed sowing dates and increased with increasing seeding rates. It is possible to maintain a high wheat yield, nitrogen and water use efficiency by increasing plant density through winter sowing. It was concluded based on present findings that sowing date and seeding rates had significant effects on nitrogen and water use efficiencies and winter sowing should be practiced as not to cause yield losses and high seeding rates (575 seeds m−2) yielded greater nitrogen-water use efficiencies.