The effect of phosphorus, sulphur and seed inoculation by psb on growth attributing characters of mustard [Brassica juncea (L.)]

The experiment was laid out at the agriculture research farm of Bhagwant University, Ajmer, Rajasthan during the years 2019-20 and 2020-21. The experimental site lies 25.0112° N, 75.9139° E at an elevation of 271 meters above msl. The site was levelled having good irrigation facilities. The collected data were analyzed using Spilt Polt Design (SPD) design with three replications. There are 3 treatment combination Level of phosphorus, Level of Sulphur and Level of PSB (Phosphate Solubilizing Bacteria) with 16 treatments. Observation at harvest, maximum plant height and dry weight of the shoots was recorded under the treatment T₄ (RDF (N constant) + 60 Kg Sulphur ha^-1 + PSB Inoculation). This treatment was closely followed by treatment T₁₅ (60 kg P₂O₅ ha^-1 + 40 kg Sulphur ha^-1 + Inoculation with PSB) and treatment T₁₆ (60 kg P₂O₅ ha^-1 + 60 kg Sulphur ha^-1 + Inoculation with PSB). Minimum plant height, Dry weight of shoots (g), during both the years of the study (2019-2020 and 2020-21), respectively, were recorded under the treatment T₁ (RDF (N constant) + 40 Kg Sulphur ha^-1 + No Inoculation). Maximum Fresh weight of shoots was recorded T₄ (RDF (N constant) + 60 Kg Sulphur ha^-1 + PSB Inoculation). This treatment was closely followed by treatment T₁₅ (60 kg P₂O₅ ha^-1 + 40 kg Sulphur ha^-1 + Inoculation with PSB) and treatment T₁₆ (60 kg P₂O₅ ha^-1 + 60 kg Sulphur ha^-1 + Inoculation with PSB). Minimum number of branches per plant was recorded in T₉ (40 kg P₂O₅ ha^-1 + 40 kg Sulphur ha^-1 + No Inoculation).Maximum number of green leaves per plant was recorded T₁₅ (60 kg P₂O₅ ha^-1 + 40 kg Sulphur ha^-1 + Inoculation with PSB). This treatment was closely followed by treatment T₁₅ (60 kg P₂O₅ ha^-1 + 40 kg Sulphur ha^-1 + Inoculation with PSB) and treatment T₁₆ (60 kg P₂O₅ ha^-1 + 60 kg Sulphur ha^-1 + Inoculation with PSB). Minimum number of green leaves per plant during both the years of the study (2019-2020 and 2020-21). Early 50% Flowering and Days to Maturity T₄ (RDF (N constant) + 60 Kg Sulphur ha^-1 + PSB Inoculation). Minimum 50% Flowering and Days to Maturity during both the years of the study (2019-2020 and 2020-21), respectively, were recorded under the treatment T₅ (20 kg P₂O₅ ha^-1 + 40 Sulphur ha^-1 + No Inoculation). Maximum Seed yield (q ha^-1) was recorded treatment T₁₆ (60 kg P₂O₅ ha^-1 + 60 kg Sulphur ha^-1 + Inoculation with PSB). This treatment was closely followed by treatment T₁₄ and T₁₅. Minimum Seed yield (q ha^-1) during both the years of the study (2019-2020 and 2020-21), respectively, were recorded under the treatment T₁ (RDF (N constant) + 40 Kg Sulphur ha^-1 + No Inoculation).The data were analysed to find out the significant treatments Panse and Sukhatme (1985).