Jack's Professional 20-10-20 Peat-Lite Water Soluble Fertilizer, 25 lbs.The most popular formulation, 20 10 20 Peat Lite. A traditional 2: 1: 2 balanced ratio formula with a 60% Nitrate to 40% Ammonical Nitrogen balance. Also will deliver approximately twice the level of micronutrients as the GP formulation. The additional level of micronutrients provides necessary elements absent from most commercially made peat lite potting media. For Use On: All greenhouse plants grown in peat lite mixes Jacks Professional 20 10 20