The goal of the study was to see how two types of beneficial bacteria, Azotobacter sp. and Azospirillum sp., could help tomato plants grow better without the need for harmful chemical fertilizers. The researchers planted tomato seeds in pots and added the bacteria along with some fertilizer. They found that the plants treated with a mix of 75% fertilizer and the bacteria grew the best, with high germination rates, tall plants, large leaves, many branches, and lots of leaves on each branch. This shows that these bacteria have the potential to be used as natural fertilizers to improve soil quality and help plants grow better.