Impact of added Phosphorus and Phosphorus Solubilizing Bacteria in Yield and Yield Attributes of Mungbean (Vigna Radiata L.)

Mungbean is an excellent rotational legume crop for farmers with small land holdings. Phosphorus Solubilizing Bacteria (PSB) solubilizes phosphorus to make it available to the plant so, their integration can be a supporting factor to increase its yield and enhance soil fertility. A field experiment was conducted at the Agronomy Research Farm of the Institute of Agriculture and Animal Sciences (IAAS), Paklihawa Campus, Rupandehi during the summer season of 2023. The experiment comprised seven treatments, namely T1: Control, T2: 10 kg P2O5ha-1 , T3: 15 kg P2O5ha-1 , T4: 20 kg P2O5ha-1 , T5: 10 kg P2O5ha-1 + PSB, T6: 15 kg P2O5ha-1 + PSB, T7: 20 kg P2O5ha-1 + PSB tested in Randomized Block Design and replicated three times. Pratigya variety of Mungbean was used. The soil of the experimental field was medium in organic matter, nitrogen, phosphorus, and potassium before the experiment. The analysis was done in R studio software. Results revealed that all the growth and yield attributes increased significantly (p < .05) under the integrated treatment (20 kg P2O5ha-1 + PSB). The growth characters viz., plant height (61.65 ± 1.25 cm), nodule number (23.90 ± 2.22), dry matter accumulation(30.74± 1.37 g), and yield attributes like the number of pod plant-1 (26.6± 1.00), pod length (8.24 cm ± 0.05), the number of grains pod-1 (8.84 ± 0.08), biological yield (30.2 ± 0.79 mt/ha), seed yield (2.44 ± 0.05 mt/ha ) and harvest index (7.51 ± 0.18 %) increased significantly in T7 (20 kg P2O5 ha-1 PSB).