This is how I reuse my old soil . I do this once a year or after end of each season depending on the soil condition. Usually we can add any manure or compost as fertilise and Cocopeat or sant to improve the porosity of the soil. The products shown in the video are the Bio fertilisers means , the microbes which help in improving the soil health with their activities. Each bio fertiliser mentioned will have a specific function. Detailed videos are uploaded in my YouTube channel. This is the right

Potting Mix vs Potting Soil #pottingmix #pottingsoil #garden soil #planters | Life at the Nest