Nutriculture® Plug Special 12-2-12 Plus was developed to meet the nutrient ratios desired during propagation. The high-nitrate, low-phosphorus blend will produce a compact, toned plant with very small internodes between leaf breaks. The high calcium and magnesium levels in a 2:1 ratio will build a solid root mass with healthy and strong chloroplasts. The micronutrients have been adjusted to meet the needs of the plant at low ppm-nitrogen (N) levels. This fertilizer will deliver 1 ppm iron (Fe) at a 100 ppm nitrogen feed rate. While this product was created for low ppm-nitrogen, use caution at elevated feed rates where micronutrient levels rise expediently.