Effect of Gypsum & Bio-compost Applications on Relative Water Content in Rice Genotypes under Sodic Soil

Sodic soils have immense productivity potential, if managed through proper technology interventions. Bio-compost is prepared by composting pressmud and gypsum received from waste material of mining can be used to reclaim sodic soils. Field experiments were conducted during the June-November 2018 2019 at ICAR - Indian Agricultural Research Institute, Sub Regional Station, Pusa (Samastipur), Bihar. Experiment was laid out in split-plot design with four treatments i.e. T1(Control plots), T2 (Gypsum@100% G.R. amended T3(Gypsum @ 50% G.R.+ 2.5 tha-1 T4(Biocompost 5.0 plots) main plots ten rice genotypes G1(Suwasini), G2(Rajendra Bhagwati), G3(Boro-3), G4(Rajendra Neelam), G5(CSR-30), G6(CSR-36), G7(CR-3884-244-8-5-6-1-1), G8(CR-2851-SB-1-2-B-1), G9(CSR-27), G10 (Pusa-44) sub replicated thrice. The promising results reveal that mean leaf relative water content pre-flowering stage salt-tolerant ranged 69.47 % 82.20 69.52 82.24 2019. grain filling all varied between 77.55 85.45 75.49 85.16 Soil amendments interaction found significantly both years stage.