The exact amount depends on effectiveness of nitrogen fixation process, type of legume, soil nutrient levels and nitrogen already available. Nitrogen provided by inoculated legumes grown in crop rotation helps boost yield and reduce fertilizer costs for corn or small grains. Urbana inoculation ensures plant nodulation with the proper strain of nitrogen-fixing bacteria for increased yield in an environmentally safe manner at relatively low cost. Legume plants decompose rapidly, leaving organic matter in the soil which enhances its physical, chemical and biological condition. Seed varieties have changed and respond best to updated strains of rhizobia for maximum fixation.
Inoculation is the environmental choice.
Inoculation can significantly aid your crop production under adverse conditions. Naturally, farming conditions are not ideal and you could use some help for higher yields. The competition among these organisms affect Rhizobia.