Effect of Fly Ash and Its Derivatives on Yield of Two Rice Cultivars (Champa and Anbarbo) in Cadmium-Contaminated Soils

Document Type : Research Paper

Authors

1 Department of Soil Science, Dezful Branch, Islamic Azad University, Dezful, Iran.

2 Department of Soil Science, Healthy and Organic Products Technology Research Center, Dezful branch, Islamic Azad University, Dezful, Iran.

3 Department of Water Engineering, Healthy and Organic Products Technology Research Center, Dezful branch, Islamic Azad University, Dezful, Iran.

4 Department of Agronomy, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran.

Abstract

One of the ways to improve the fertility of contaminated soils is the use of waste materials such as fly ash and its derivatives. The aim of this study was the effect of treatment of fly ash derivatives and genotype on rice yield. The experiments of two cropping years 2019-2020 and 2020-2021 were performed in two forms of field and pot cultivation in Safiabad Agricultural and Natural Resources Research and Education Center. No ash and its derivatives (fly ash), intermediate material treatment, and zeolite treatment as sub-treatments included two cultivars of Champa and Anbarbo. The studied traits are grain yield and plant dry weight. Comparison of average treatments was done by Duncan's method and at two probability levels of 1% and 5%. Plant variables were analyzed by split plot method in a randomized complete block design and soil variables were analyzed by randomized complete block design. According to the results of the effect of fly ash treatment and its derivatives on rice yield had a significant effect at a probability level of one percent. Genotype also had a significant effect on rice yield at the level of one percent probability. Also, the interaction effect of fly ash treatment and derivatives and genotype treatment had a significant effect on rice yield at the level of 1% probability. So that the lowest and highest amount of yield with the amount of 3065.42 and 3555.96 kg/ha in the field experiment and 3162.54 and 3668.1 kg/ha in the pot experiment, respectively, in the control treatment and the anbarbo variety and it was found that the treatment of fly ash and Champa variety was statistically significant at the level of 5% according to Duncan's test. So, the highest yield in both field and pot tests was observed in intermediates treatment and Champa variety.

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