Bridgewell Agriculture PAR4® AFEKELXXX10250B 1-0-2 Kelp Meal 50 lbs - PAR4® Kelp Meal fertilizer is an excellent source of natural nitrogen and potassium. Kelp meal feeds beneficial soil microbes increasing their populations. Kelp meal breaks down quickly and contributes to organic matter content in soils and soil mixes. These plant nutrient benefits contribute to improved soil structure, reduced plant stress.