2026-05-29T15:57:55Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/117412026-05-28T06:12:14Zcom_10259_6168com_10259_5086com_10259_2604col_10259_6169

Khan, Aqib Hassan Ali Kazmi, Syedah Zoya Mirza, Cyrus Raza Butt, Tayyab Ashfaq Gul, Nida Barros García, Rocío Yousaf, Sohail Iqbal, Mazhar Petunia hybrida L. Nicotiana alata L. Soil amendments Catalase Dehydrogenase Urease Alkaline phosphatase The nutrient cycle and organic matter decomposition are catalyzed by soil enzymes. In this study, enzymatic activities of catalase, dehydrogenase, alkaline phosphatase, and urease are studied in soils amended with compost (C), moss (M), or biochar (B) and irrigated with heavy metal-contaminated wastewater (HM-CW), when Nicotiana alata L. and Petunia hybrida L. was grown in pots. The irrigation of HM-CW reduced the soil enzyme activities. However, combined used of 5% M+C+B, results in the improved soil enzyme activities. In case of N. alata and P. hybrida, catalase activity was 222.03 ± 9.24 and 402.34 ± 10.48 mg KMnO4 g-1 soil h-1, respectively, with M+C+B, which was up to 94% higher than non-amended treatment. Similarly, the M+C+B treatment also showed higher activity for dehydrogenase i.e., 180.24 ± 6.95, and 156.79 ± 8.31 μg TPF g-1 soil h-1 for N. alata and P. hybrida, respectively, that were 73% and 49% higher than non-amended treatment. Alkaline phosphatase production (μg p-nitrophenol g-1 soil h-1) for N. alata with M+C+B was 40.10 ± 1.92 and with C+B was 38.41 ± 2.00, while for P. hybrida with M+C+B was 39.33 ± 2.05, which is signifi cantly higher as compared with the non-amended treatment. Urease activity at M+C+B application in soil with P. hybrida was 83.22 ± 5.54 mg urea g-1 soil h-1, which was much higher than that of N. alata. In general enzyme activity enhanced in the soil with N. alata or P. hybrida along with soil amendments. It shows that application of these organic amendments individually or in combination with N. alata or P. hybrida increased enzyme activities possibly through affecting soil nutrient dynamics 2026-05-27 2026-05-27 2023-01 info:eu-repo/semantics/article 0125-2526 https://hdl.handle.net/10259/11741 10.12982/CMJS.2023.008 2465-3845 eng Chiang Mai Journal of Science. 2023, V. 50, n. 1 https://doi.org/10.12982/CMJS.2023.008 http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Atribución 4.0 Internacional Chiang Mai University