Effect of different organic fertilizers and bio-fertilizers on growth, yield, quality and profitability of organic potato production

Abstract

The field experiment was conducted to find out the effect of organic manure and bio-fertilizers on growth, yield, quality and profitability of organic potato production. The experiment was conducted at the organic block under Tuber Crops Research Centre (TCRC), Joydebpur during rabi season of two consecutive years 2022-23 and 2023-24. The experiment was laid out in a randomized complete block (RCB) design with 3 replications. The treatments comprised of two bio-fertilizers viz. Azotobacter and Phosphate solublizing bacteria (PSB) each one @8 ml per kg seed potato in liquid form and three organic manures with different dosages namely 10 ton/ha and 8 ton/ha were chosen as the treatment. The treatment combinations were T1: Control, T2: Vermicompost 10 t/ha, T3: Trico-compost 10 t/ha, T4: ACI Organic Fertilizer 10 t/ha, T5: Bio-manure (Azotobacter + PSB), T6: Vermicompost 8 t/ha + (Azotobacter + PSB), T7: Trico-compost 8 t/ha + (Azotobacter + PSB, T8: ACI Organic Fertilizer 8 t/ha + (Azotobacter + PSB). Potato variety BARI Alu-25 was used as test crop. The growth parameters, yield attributes, yield and quality parameters were significantly influenced by the integrated use of organic manure and biofertilizer. The maximum (23.8 t/ha) tuber yield was found in T6 (VC 8 t/ha + Azotobacter 8ml/kg seed + PSB 8ml/kg seed). Moreover, the highest gross return (Tk 1189500/ha) and net return (Tk. 634500/ha) and Benefit Cost Ratio (BCR: 2.14) was also recorded in the same treatment.

Bangladesh J. Agril. Res. 50(3): 269-281, September 2025