Abstract

The main objective of this study was to determine the effects of organic manure and biofertilizer on the fruit yield and yield components in the dill plant height, umbel number per plant, weight of 1000 seeds, biologicals and fruit yield. The experiment was carried out at the Hamand Research Station in Damavand in 2011. Vermicompost (0, 4, 8 and 12 ton/ha) and biofertilizer, mixture of Azotobacter chroococcum and Azospirillum lipoferum (non-inoculated, inoculated seeds and inoculated seeds + spray on the plant base at stem elongation stage) were used as the effecting parameters. The present results have shown that the highest umbel number per plant, weight of 1000 seeds and fruit yield were obtained after applying 8 ton/ha vermicompost. The maximum plant height and biomass yield were obtained respectively after applying 4 and 12 ton/ha vermicompost. Biofertilizer also showed significant effects on plant height, biomass yield and fruit yield. The maximum plant height, biomass yield and fruit yield were obtained by using the biofertilizer twice.

Key words: Vermicompost, Azotobacter, Azospirillum, umbel, biomass.