SoilPlex SOILPLEX2.5 2.5 gal Soil Conditioner is a liquid soil conditioner that contains the highest concentrations of both humic and fulvic acids for healthy soils and plants. The humic and fulvic acids in SoilPlex act as natural chelating agents binding to nutrients in the soil. Plant roots absorb these humic acid and nutrient compounds improving plant health and decreasing nutrient losses caused by leaching. This soil conditioner is excellent for use on all turf areas in cool season and warm season grasses, flower beds, vegetable gardens and anywhere plants are growing in your landscape. SoilPlex increases air, water and nutrient penetration into the sub-soil and is an excellent food source for increasing important microbial activity.