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1. The benefits of biofertilizer application depend on several soil and crop management aspects in field conditions.
2. Soil and climatic problems such as unfavorable pH, high temperature, drought, high nitrate, deficiency of P, Mo, Fe, Cu, Co, presence of toxic elements, competition from the native strains and compatibility with lost genotypes, lack of knowledge and availability of quality products, use of substandard inoculants, lack of proper handling or faulty inoculation methods are important field level constraints for poor response of biofertilizers in filed.