Mineral Nutrient Variations in Soybean (Glycine max ) After Treatment with Exogenous Cobalt

Abstract

In this experiment, we tried to explore the changes that are occurring in soybean plants due to the treatment with exogenous cobalt. A  pot culture experiment was conducted and cobalt was given to Soybean (Glycine max) plants by soil drenching method. Nitrogen, phosphorus, potassium, copper, iron, manganese and zinc contents were extracted and estimated from both control and treated plant parts (from roots and shoot). The results showed the low concentrations of cobalt (50 mg kg^-1 Co level) in the soil enhanced these parameters while higher concentration (Co level (100-200 mg kg^-1) in the soil) didn’t show any significant effect.