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The Effect of Chemical and Biofertilizer on Grain Yield of Two Dill (Anethum graveolens L.) Cultivars

: In order to study the effect of combined fertilizer management of bio-fertilizer and chemical fertilizers on grain yield of two dill ( Anethum graveolens L.) ecotypes, a field experiment was arranged in a factorial layout based on randomized complete block design with three replications in 2019 in Agricultural Research Farm of the University of Tabriz. The first factor includes two ecotype (C1: Native of Tabriz and C2: Varamin); while the second factor was composed of five fertilizers levels, namely control (N0), chemical fertilizers (N1), Enterobacter cloacae S16-3 bacteria + half a chemical fertilizer (N2), Piriformospora indica Fungi + half a chemical fertilizer (N3) and combination of bacteria + fungi + half a chemical fertilizers (N4). Although the highest yield and yield components were obtained for chemical fertilizers treatment (N1), but there was no statistically significant difference with the combined treatment (N4). The combined application of biofertilizers (growth-promoting bacteria and fungi) in addition to reducing chemical fertilizers (50%), led to high grain yield. Accordingly, the application of combined treatment (N4) can be a suitable treatment for the cultivation of medicinal plants, including dill.