Vol. 11, Issue 11 (2022)

The present investigation on “Studies on effect of organic manures, biofertilizers on growth, yield and quality of Turmeric (Curcuma longa L.) varieties” was conducted at College of Horticulture, Rajendranagar, SKLTSHU, Mulugu during 2019-20. The experiment was laid out in Factorial Randomized block design (FRBD) with 2 replications and 18 treatments. The results revealed that among all the organic manures, biofertilizers, varieties and their combinations, among the growth parameters the treatment M₃ - Vermicompost 14 t ha^-1 + AMC (Arka microbial consortium) 1 l q^-1 compost recorded highest values for plant height (64.40 cm), number of tillers per plant (5.48) and leaf area (404.91 cm²) at harvest. Among the yield and quality parameters, the treatment M1 – FYM 45 t/ha + AMC (Arka microbial consortium) 1 lit per quintal manure recorded maximum fresh weight of rhizomes per clump (409.53 g), dry weight of rhizomes per clump (82.2 g), rhizome yield per plant (486.98 g), rhizome yield per plot (24.33 kg). Among the varieties, Salem recorded significantly the highest values for plant height (67.70 cm), number of tillers per plant (5.20), leaf area (524.02 cm²), fresh weight of rhizomes per clump (482.34 g), dry weight of rhizomes per clump (88.92 g), rhizome yield per plant (670.65 g), rhizome yield per plot (33.51 kg). Among the interaction effects between organic manures, biofertlizers and varieties, the treatment M₃V₁ - Vermicompost 14 t ha^-1 + AMC (Arka microbial consortium) 1 l q^-1 compost + vertical split of mother rhizome of Salem variety recorded maximum plant height (79.47 cm), number of tillers per plant (6.12) and leaf area (576.41 cm²) at harvest. Among the yield and quality parameters, the treatment M1V1 – FYM 45 t/ha + AMC (Arka microbial consortium) 1 lit per quintal manure + vertical split of mother rhizome of Salem variety recorded maximum fresh weight of rhizomes per clump (756.10 g), dry weight of rhizomes per clump (148.15 g), rhizome yield per plant (890.40 g), rhizome yield per plot (44.50 kg). In terms of B: C ratio, application of organic manures and biofertilizers, the treatment M₁V₁ –FYM 45 t/ha + AMC (Arka microbial consortium) 1 lit per quintal manure + First best treatment of first experiment – Salem has recorded maximum benefit cost ratio (5.22).