The researchers tested different ways of giving nutrients to pearlmillet plants in rainy conditions. They found that using biofertilizer or farmyard manure alone didn't make a big difference in plant growth and yield. But combining these two sources worked better than using them alone. Combining biofertilizer or farmyard manure with a small amount of chemical nitrogen was just as good as using a larger amount of nitrogen alone. Using all three sources of nutrients together - farmyard manure, a small amount of nitrogen, and treating seeds with biofertilizer - gave the best results in terms of plant growth, yield, and profit.