How did the Addition of Indaziflam Affect on Carbon and Nitrogen Mineralizations in a Vineyard Soil?

Koçak B., Cenkseven Ş., Kızıldağ N., Sağlıker H., Darıcı H. C.

International Journal of Life Sciences and Biotechnology, cilt.1, ss.1-12, 2021 (Hakemli Dergi)

Özet

Indaziflam is a herbicide used for weed control in vineyards, apple, peach and orange orchards that inhibit cellulose biosynthesis in plants. The objective of this study was to evaluate the effects of recommended field dose of herbicide Indaziflam (10 ml/ da, RD) and its 2 (RD x2), 4 (RD x4), 8 (RD x8) and 16 (RD x16) folds of RD on carbon and nitrogen mineralizations in a vineyard soil. Herbicide+soil mixtures were humidified at 80% of soil field capacity and then incubated for 42 days at 28ºC . Effects of RD and RD x2 doses on soil carbon mineralization were similar to control and no significant difference was found between them. Higher doses of indaziflam (RD x4, RD x8 and RD x16) stimulated mineralization of soil carbon and there were found significant differences between control and these doses (P<0.05). All application doses of herbicide showed variability in ammonium (NH4-N) and nitrate (NO3-N) contents while there were generally found no significant differences between control and RD. In general, contents of soil NH4-N and NO3-N were increased in all applications as time passed and there were significant differences between days that were measured of these contents (P<0.05). Results of soil nitrogen mineralization rate were as following: 1) It was significantly decreased by only RD x2 on 11th day (P<0.05) 2) Higher doses of Indaziflam (RD x4, RD x8 and RD x16) significantly stimulated it on 26th day (P<0.05) 3) All doses of this herbicide significantly decreased it on 42nd day (P<0.05). In conclusion, the recommended field dose of Indaziflam had no negative effect on microorganisms that play an active role in soil carbon and nitrogen mineralization.