I started some blueberry rows with leaves, wood chips and then rejuvenate application, two months later I planted Rape seed, turnips and some buckwheat in my blueberry rows they all contribute sulfur back to the soil. I have now added an additional layer of mulch and wood chips and soon another application of rejuvenate I will be planting this fall and so far have lowered my ph by a point and my earthworm activity is growing.