15-0-15 with 50% SRN is produced from high quality technical and food grade raw materials. 15-0-15 is safe for both turf and horticultural applications, and is a reliable source of both N and K. 15-0-15 contains soluble, readily available potassium for immediate plant uptake to maintain sufficient potassium levels. Nutrients are absorbed both through  the leaves and roots. Potassium improves the stand of stalk and increases disease resistance. 15-0- 15 provides an optimal 1 to 1 ratio of N and K which is important when turf cannot use high levels of Phosphorus. No special agitation is required. 15-0-15 does not contain chlorides which can cause salt  buildup.  Potassium is known to improve winter hardiness of turf grass. University research indicates the importance of maintaining good potassi­ um levels as it relates to drought tolerance. Application is sug­ gested where soil levels of potassium are marginal, and annual applications of 2 lbs of potassium per 1,000 sq. ft. may be required.