Laboratory Testing Methods for Nitrogen Fixation and Phosphorus Solubilization Efficacy
Comprehensive laboratory protocols for evaluating biofertilizer efficiency including nitrogenase activity measurement via acetylene reduction method, phosphate solubilizing bacteria screening using Pikovskaya’s medium, phosphorus-dissolving capacity quantification through colorimetry, microbial viability testing (CFU/mL), and multifunctional bacteria evaluation (ACC deaminase, siderophore, IAA secretion)