Natural Nitrogen Fertilizer, Packaging Type : White

Nitrogen is one of the three primary nutrients plants require to grow strong and healthy. The other two are phosphorus (P) and potassium (K), and these big three are listed on packaging for most plant fertilizers as the NPK Values . For example, a 10-10-10 ratio means that the fertilizer provides equal amounts of the three nutrients. But when the ratio on a fertilizer is 20-5-5, it provides four times more nitrogen than phosphorus and potassium.