2024, Vol. 7, Issue 7, Part A

author(s)
Manoj Kumar, Partap Singh and Jitendra Kumar Malik

abstract
On this experiment Black mustard (Brassica nigra (L.)) cv. Rohani changed into dealt with with various bio and chemical fertilizers all through Rabi season 2022-2023 and 2023-2024. Urea, DAP, MOP and elemental sulfur had been used as nitrogen, phosphorus, potassium and sulfur sources. Biofertilizers inclusive of RDF (Refuse fuel), Azotabactor and PSB (Phosphate Solubilizing bacteria) have been applied to the soil as treatments simply before sowing, replicated 3 times with sixteen treatment combos in a split plot layout (SPD). A unmarried utility of chemical fertilizer impacts the yield and best of mustard seed. So enhancing soil circumstance and increasing yield potential by way of applying a aggregate of bio and chemical fertilizers as opposed to just chemical fertilizers. It changed into concluded that the prevailing take a look at of Rohini black mustard variety dealt with bio and chemical retailers advanced yield parameters which include siliqua in line with plant, variety of seeds consistent with siliqua, 1000 seed weight (g), yield according to hectare (q), straw yield (q ha^-1), harvest index, oil content material and oil yield, protein content material and protein yield. The detected maximum variety of siliqua in line with plant (6.73, 6.27 and 6.50), variety of seeds in line with siliqua (123.91, 13.44 and 13.68), weight of a thousand seeds (5.21g, 5.20g and 5.21g), yield in step with hectare (20.88g) q and 20.66q), straw yield in keeping with hectare (64.94q, 64.80q and 64.87q), maximum harvest index (24.33, 23. 98 and 24.16) the best oil content of black mustard seeds (54.94 percent, 45. 80 percent, 8 percent) and the highest percentage of protein content material (%) in mustard seeds (25.24 percentage, 25.20 percent and 25.22 percentage) in T₁₅ (one hundred% RDF + Azotobacter + PSB), while harvested in 2022-2023, 2023-2024 and combined or Economics of differential treatment, remedy T₁₅ (100% RDF+ Azotobacter + PSB) gives the best internet profit of Rs. ninety eight,056, Rs. 94920 and Rs. 96488 in line with hectare with the value benefit ratio being 1:2.23, 1:2.11 and 1:2.18 for 2022-2023, 2023-2024 and combined respectively. but a minimal net earnings of Rs. 59488 was recorded in the control treatment. This research elucidates the effectiveness of various fertilizer (bio and chemical) applications on growth traits, yield potential and oil first-rate of mustard and encourages farmers to adopt combined software of bio and chemical fertilizers to boom crop yield and exceptional.