The effects of different irrigation and hydrogen peroxide levels on soil organic matter


Wahab T. S., Acar M., Sarıyev A., Sesveren S., Barutçular C., Yaşa Kafkas N. E.

10th International Çukurova Agricultural and Veterinary Congress, Adana, Türkiye, 22 - 23 Haziran 2025, ss.131, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Adana
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.131
  • Çukurova Üniversitesi Adresli: Evet

Özet

Soils with high clay content when irrigated may induce hypoxia and in extreme conditions anoxia. Management practices that improve these conditions and their effects on soil organic matter (SOM) require further study. A field trial was conducted at the research fields of Çukurova University using a split plot experimental design. The main plots was irrigation levels, and the subplots hydrogen peroxide (H2O2) concentrations. The irrigation and H2O2 treatments consisted of three levels: I100 (irrigation to the field capacity), I75 (75% of I100) and I50 (50% of I100); and H2O2 at 600 ppm, 300 ppm and 0 ppm. At the end of the sesame and the potato experiments, disturbed soil samples were collected from the plots at 0-15 and 15-30 cm soil depths and analyzed for SOM. The results from the sesame field trials indicated that H2O2 and their interactions significantly improved SOM at the 0-15 cm depth, while the irrigation and their interactions significantly reduced SOM at the 15-30 cm soil depth. The sesame trials showed that reduced irrigation treatment (I50) combined with mid-range H2O2 (300 ppm) significantly improved SOM at both soil depths. Furthermore, I50 and 300 ppm interaction reduced the impact of management practices that improves soil aeration. Overall, the results indicate that the effects of H2O2 application may be mitigated by the type of crop grown. Crops like sesame may reduce the negative impact of H2O2 and even improve SOM due to crop root residues, whereas potato plants tubers are the main harvest, which may contribute less to SOM. The management practices of using H2O2 to improve aeration on soil microbial communities may require further research.