Performance of direct seeded rice as influenced by STCR based nutrient management

An experiment was conducted to assess performance of direct seeded rice under the soil test crop response (STCR) based nutrients management. The study was undertaken during Kharif season of 2016 at the soil science research farm of Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur Madhya Pradesh, India. The field experiment was laid out in four replications and six treatments viz., T1: Control, T2: GRD (120:60:40 kg N, P2O5 and K2O ha-1), T3: Targeted Yield 50 q ha-1 (115:90:49 kg N, P2O5 and K2O ha-1), T4: Targeted Yield qha-1 (157:125:70 kg N, P2O5 and K2O ha-1), T5: Targeted Yield 50 q ha-1 (115:90:49 kg N, P2O5 and K2O + 5 t FYM ha-1) and T6: Targeted Yield 60 q ha-1(157:125:70 kg N, P2O5 and K2O + 5 t FYM ha-1) in Randomized Block Design. Yield attributing characters like panicles per plant, panicle length (cm), panicle weightplant-1 (g), number of grains per panicle and test weight (g) were found higher in T6 (1.45, 21.27, 19.81, 119.73 and 24.49, respectively) and increase to the tune of 17.88, 26.23, 29.73, 47 and 17.68%, respectively, over control. Similarly, seed and straw yield found maximum in T6 with application of 157:125:70 kg N, P2O5 and K2O with 5 t FYM ha-1 (5725 and 7623 kg ha-1, respectively). The targeted yield of T6 (60 q + 5 t FYM ha-1) could not be achieved and deviated by ± 4.58% negatively, whereas the targeted yield of T5 (50 q + 5 t FYM ha-1) was obtained comfortably. Such findings explicitly showed that the usage of STCR-based fertilizers coupled with FYM was greatly successful in achieving the higher yield.