Performance of organic fertilizer (Plorax Jaibo Sar) on yield and yield attributes of tomato

The experiment was conducted during rabi season 2019-2020 at Agricultural Research Station, On Farm Research Division, Alamnagar, Rangpur to find out the useful effects of organic fertilizer on growth and yield of tomato. The experiment was arranged in a randomized complete block design (RCBD) with five treatments in three (03) compacted replicate blocks. The treatments included T1: 100% Recommended Chemical Fertilizer (RCF), T2: 85% CF + 3 tha-1 organic Fertilizer (OF), T3: 85% CF + 1 tha-1 OF, T4: 70% CF + 3 tha-1 OF and T5: 70% CF + 1 tha-1 OF. The highest yield was observed in T2 (52.22 t ha-1) due to more number of fruit plant-1& weight of fruit plant-1 and the lowest was in T5 (48.81 t ha-1). The highest gross return (BDT. 626640 ha-1) was found in T2 treatment and the lowest gross return (BDT. 585720) was recorded from T5. The highest gross margin (BDT. 358140 ha-1) was obtained from T1. The lowest gross margin (Tk. 310253 ha-1) was obtained from T5. Combinations of organic manure with mineral fertilizer resulted in a higher fruits yield than the sole mineral fertilizers. Based on the results, this study, recommends the use of organic manure with mineral fertilizers for improved tomato fruit yield while maintaining high soil fertility. Hence, the utilization of organic fertilizers, either alone or in conjunction with chemical fertilizer, markedly enhanced the growth and yield of the tested vegetable, offering viable strategies for enhancing the yield potential.