Influence of Different Levels of NPK and Biochar on Physico-chemical Properties of Soil in Field Pea

An experiment was conducted during in Rabi season (December 2021 – March 2022) on central research farm of Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj. The experiment was laid out in randomized block design with three levels of NPK and Biochar (0, 50 and 100%). The result shows that application of different levels combination of inorganic fertilizers increased growth, yield of field pea and improved soil chemical properties. It was recorded from the application of NPK and Biochar fertilizers in treatment T9 [NPK @ 100% + Biochar @ 100%] maximum bulk density 1.274 Mg m-3 at and 1.279 Mg m-3, particle density 2.518 Mg m-3 and 1.523 Mg m-3, % pore space 47.71% and 44.68%, water holding capacity 39.75% and 36.82%, pH 7.05 at and 7.15 at, EC 0.473 dS m-1 and 0.479 dS m-1, organic carbon 0.497% and 0.495%, available nitrogen 314.56 kg ha-1 and 311.55 kg ha-1, available phosphorus 38.70 kg ha-1 and 36.28 kg ha-1, available potassium 220.42 kg ha-1 and 217.67 kg ha-1 all parameters at 0-15 cm and 15-30 cm best from T1 [ NPK @ 0% + Biochar @ 0 %].