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Abstract The excessive use of chemical fertilizers has led to soil depletion of essential minerals, causing microorganisms to be distracted and reducing the distribution of soil fauna and flora. The field experiment examined the impact of biofertilizer (Rhizobium and Phosphorus Solubilizing Bacteria) and blended fertilizer (NPKSZn) on the growth, yield, and yield-attributing characteristics of Faba bean. The experiment was laid out in RCBD with eight treatments. The result revealed that the application of biofertilizer significantly (P Rhizobium and PSB along with recommended dose of NPKSZn in both growing seasons. The highest net benefit (48174.9 ETB per ha) with an acceptable maximum marginal rate of return (789.26%) was recorded in dual inoculation of seed with Rhizobium and PSB. Therefore inoculations of Rhizobium and PSB enhance the production and productivity and reduce the chocolate spot infestation level. Hence the seed must be inoculated with a dual culture of Rhizobium and PSB along with another package of practices for the crop.
Mossa et al. (Fri,) studied this question.