This study shows how mixing beneficial bacteria with mushroom waste can improve poor soil quality. The bacteria help break down the mushroom waste into nutrients that plants need, while also creating a healthier soil environment full of beneficial microbes. When this treated mushroom waste was added to degraded soil and used to grow pine seedlings, the plants grew taller with thicker stems and more leaves than in untreated soil. This approach offers a practical way to recycle agricultural waste while restoring damaged soils.