Utilization of biomass briquette ash as source of potassium to sunflower and its effect on soil properties

Abstract

The experiment was conducted during the Rabi season at Research Farm, Shankar Nagar, College of Agriculture, Nagpur during 2021-2022. It was laid out in Randomized Block Design with eight treatments and three replications, which comprised of recommended NP fertilizers along with water soluble potassium (WSK) and total potassium (TP) basis through biomass briquette ash (BBA) from 50-100 percent compared over recommended NPK fertilizers and absolute control. The Slight improvement in organic carbon content (4.32 - 4.84 g kg-1) were recorded with its incremental effects on soil available nitrogen, phosphorus, potassium and sulphur (283.13, 14.62, 354.20 and 10.62 kg ha-1 and Fe, Zn, Cu and Mn (4.18, 0.76, 1.67 and 2.34 mg kg-1) due to application of 100 percent of recommended NP fertilizer along with 100 percent water soluble potassium through BBA.