Role of Neem and Poplar biochar for the growth and yield of wheat (Triticum aestivum L.) under poplar (Populus deltoides) based agroforestry system

An experiment was carried out in the Forestry research farm, Department of Silviculture and Agroforestry, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad during the rabi season 2017-2018. An experiment was laid out in a Randomized Block Design (RBD) with ten treatments and three replications and each plot size is 4m2. The crop was applied with recommended dose of fertilizer with neem biochar and poplar biochar at five different doses (0%, 5%, 10%, 15%, 20%). Out of all the treatments T4-(Recommended dose of fertilizer +Neem Biochar 15%) was found to be best treatment followed by T9 –(recommended dose of fertilizer+ 15% of poplar biochar) results revealed that there was significant difference from 30th day to 120th day and parameters are plant height (97.95 cm), number of tillers per plant(8.78), plant dry weight(129.31gm), length of panicle (14.20 cm), number of grains per panicle (25.66), grain yield (27.73 q ha-1), straw yield (63.32 q ha-1) and harvest index (54.90 %).