Effect of chemical fertilizers and bio fertilizers on vegetative growth, flowering parameter on dahlia (Dahlia variabilis L.) cv. Kenya orange

Abstract

The present investigation entitled, “Effect of chemical fertilizers and bio fertilizers on vegetative growth, flowering parameter on Dahlia (Dahlia variabilis L.) cv. Kenya Orange was under taken in the Department of Horticulture, Naini Agricultural Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, (Allahabad). During rabi season (2018-2019). The experiment was layout in Randomized Block Design (RBD) with 13 treatments and each treatment replicated thrice. The treatments consist of different combinations of chemical fertilizers (N, P and K) and bio fertilizers (Azotobacter and PSB) and control (No fertilizers and manures). The treatment T3 (N80 +P100+ K100 + Azotobacter @ 2.0 kg/ha) was found the statistically significant compared to other treatment combination, which recorded highest plant height (109.39 cm), plant spread (64.41cm), Number of leaves (46.40), Number of branches (6.26), Days to first flower bud initiation (46.33days), total number of flower per plant (8.13) followed by T9 (N100 + P80 + K100 + PSB @ 3.0 kg/ha) and lowest yield was obtained from T0 (control).