Vol. 12, Special Issue 7 (2023)

Author(s):
Divya Dhruw, LK Srivastava, Bindiya Paikra, Gaurav Jatav, Hitesh Mishra, Rakesh Banwasi and Om Prakash

Abstract:
A field experiment was conducted on “Validation of STCR Based Fertilizer Prescription on the Farmer’s Field” of Lanjoda village, District-Kondagaon (C.G.)” during Kharif season, 2020 with the three objectives; To test the validity of fertilizer prescription equation developed for Rajeshwari variety of rice. The fertilizer prescription equations previously developed for rice (variety-Rajeshwari) in STCR project as FN=5.00T-0.78SN-0.3ON, FP= 1.40T-2.78SP-0.27OP and FK-1.57T-0.10SK-0.09OK were validated on farmer’s field with rice variety Rajeshwari. The experimental field was laid out in randomized block design with three replications, consisting of seven treatments as control (N₀ P₀ K₀), farmers practice (N₈₀ P₅₀ K₃₀), GRD (N₁₀₀ P₆₀ K₄₀), STCR based dose for TY 50 q ha^-1 (N₁₀₂ P₂₈ K₄₅), STCR based dose for TY 50 q ha^-1 with FYM (N₉₅ P₂₄ K₃₉ + 5 t ha^-1 FYM), STCR based dose for TY 60 q ha^-1 (N₁₅₁ P₄₂ K₆₁) and STCR based dose for TY 60 q ha^-1 with FYM (N₁₄₅ P₃₈ K₅₅ + 5 t ha^-1 FYM). The soil of experimental field belongs to the soil order of Vertisol having clayey in texture. The highest mean grain yield was recorded with treatment YT 60 q/ha without FYM (61.44 q/ha) and YT 60 q/ha with FYM (60.25 q/ha) which were statistically at par and significantly higher than rest of treatments. Treatments YT 50 q/ha with FYM, GRD, and YT 50q/ha without FYM gave grain yield as 50.24, 50.06 and 49.44 q/ha, respectively were significantly higher than farmers practice dose (41.32 q/ha) followed by control (24.20 q/ha). Significantly highest straw yield (73.37 q/ha) was recorded under treatment YT 60 q/ha followed by YT60 q/ha with FYM (70.45 q/ha), which were statistically at par and both the treatments gave significantly higher straw yield than other treatments. Lowest straw yield recorded in control plot.