The 16-4-5, 50% SRN has been formulated for deep root feeding of trees and ornamentals. It supplies the primary nutrients of Nitrogen, Phosphorus and Potassium plus Magnesium, Sulfur, Boron, Copper, Iron, Manganese and Zinc all in one ready-to-use package. Being a liquid, 16-4-5, 50% SRN mixes instantly with water that makes it a natural to use with hydraulic equipment. A substantial percentage of the Nitrogen in 16-4-5, 50% SRN is unique as it is derived from Triazone. With Triazone, there is little chance of burn because it makes its Nitrogen available through a slow, regulated breakdown of complex molecules. Triazone lasts substantially longer than Urea or Ammonium Nitrate in the soil and provides a steady source of Nitrogen to trees and ornamentals.