The researchers studied how different types of fertilizers and biofertilizers affect the growth and yield of field peas. They found that using a combination of vermicompost, inorganic nutrients, and biofertilizers resulted in the highest seed yield and better soil fertility. This approach led to more branches, heavier seeds, and increased harvest index of the field peas. The use of biofertilizers and zinc also improved crop growth and yield, as well as the soil's nutrient levels. Overall, the integrated nutrient management strategy significantly increased the seed yield of field peas compared to using only inorganic nutrients.