Variations in CO2 Emissions from Field Previously Irrigated with Different Levels of Wastewater under Different Tillage Practices


Yerli C., Şahin Ü., Öztaş T., Örs Cırık S., Kızıloğlu F. M.

3 RD INTERNATIONAL CONFERENCE ON FOOD, AGRICULTURE AND ANIMAL SCIENCES (ICOFAAS 2021), Erzurum, Türkiye, 13 - 17 Ekim 2021, ss.102-110

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Erzurum
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.102-110
  • Atatürk Üniversitesi Adresli: Evet

Özet

Management of applied practices in the field such as, water quality, irrigation amount, fertilizer use, and soil tillage etc. has considerably impact on the amount of CO2 emissions in agricultural systems. The principal objective of this research was to discover how CO2 emissions respond to water quality and amount under different soil tillage practices. For this aim two years field experiment was carried out under no-tillage (NT) and conventional tillage (CT) practices on silage maize with wastewater irrigation at different water levels (WW100%, WW67% and WW33%) and freshwater irrigation (FW100%) as control treatment. The results revealed that the interaction of irrigation and tillage practices was statistically significant at all measurement time intervals. CT increased CO2 emission as compared to NT under all irrigation treatments. Irrigation with wastewater increased CO2 emission as compared to freshwater irrigation in both NT and CT. In both soil tillage treatments, the measured CO2 emissions from WW100% and WW67% were higher as compared to FW100% whereas WW33% treatment released less CO2 than FW100%. Our results showed that with different scenarios depending on the amount and quality of available water and soil tillage practices, different solutions could be applied to improve climate resilience for a given region.