Liquid Soil Conditioner for Gardens | Jump StartJump Start liquid soil conditioner restores dead garden soil to healthy, fertile conditions for higher crop yield. This soil conditioner liquid uses organic acids to break up soil compaction, it's even an effective clay soil conditioner liquid. It frees up nutrients and aerates, increasing crop yields, seed germination and overall plant vitality. Benefits of Jump Start soil conditioner: Improves soil structure Increases water holding capacity