The researchers studied how different types of fertilizers affect the productivity and profitability of garden peas. They tested combinations of inorganic fertilizers and organic sources on pea plants in a field experiment. The results showed that using vermicompost along with half the recommended amount of chemical fertilizers produced the highest yield and profit. This method also had a higher return on investment compared to using only chemical fertilizers. Overall, integrating vermicompost with chemical fertilizers can help increase the yield and profit of garden peas in Uttar Pradesh.