Agronomic Responses of Soybean (Glycine max L. Merrill) to Spent and Deoiled Bleaching Earth Filler-Based NPK Fertilization

The objective of the study was to effects spent bleaching earth (SBE) and deoiled (DBE) filler-based NPK fertilizers on agronomical characteristics soybean as a model crop. A field experiment arranged in single factor randomized complete block design (RCBD) with four blocks replications. treatments were 1) fertilizer 10% BC (control), 2) 5% + SBE, 3) DBE. variables observed levels heavy metals leaf tissue agronomic plants. observations made several crop characters. data then analyzed analysis variance (ANOVA) at continued Least Significant Difference (LSD) test if there differences among treatments. results confirmed that SBE DBE materials could partly replace filler components fertilizers, which has been proven have same impact form area, root volume, number pods per plant, seeds seed yield hectar.