In some areas of the country, P is a 4-letter word. It seems like municipalities around the country are putting the heat on phosphorus with restrictions and other legislative efforts to reduce the nutrients’ potential negative effects. These negative effects are primarily a result of runoff in lakes and streams from inorganic phosphorus that has leached. However, our entire product line uses only organic phosphorus.
The phosphorus source in our Nature Safe Natural & Organic Fertilizer formulations is meat and bone meal. The phosphorus is naturally occurring and partially chelated, meaning the nutrient is tied to an amino acid that translates into a unique interaction with calcium to create a higher level of bioavailability. Through our processing technology of these materials, the ingredients feature a high level of digestibility for soil microbes. The soil microbes then digest the ingredients and release the nutrients to the plant through the root system in a process called mineralization.
Phosphorus has many catalytic and structural functions appearing in connection with carbohydrate production in the plant. As noted above, the opposite charges of calcium and phosphorus creates an interaction that results in a delivery system for both to the plant. That is why phosphorus from bone meal is so valuable. It is in the presence of calcium, which makes it biochemically available.
As a trivalent anion, phosphate is fairly insoluble and immobile. It is not highly ionized, or available. Hence, in the soil it is moved from its insoluble state to a condition of more activity by decaying organic matter giving off its resulting carbonic acid. In addition, the soil microorganisms would transform the nitrogen in the organic form more effectively when made available in conjunction with calcium.
In comparison, inorganic forms of phosphorus are often treated with some form of acid to make the phosphorus soluble. As a result, the plant typically immediately takes up inorganic phosphorus sources. However, since the plant immediately receives the phosphorus it needs short-term, the remaining phosphorus has a tendency to leach. In addition, the longer-term phosphorus needs of the plant are not met.
As you know, the organic ingredients in Nature Safe to include all phosphorus sources are listed with the Organic Materials Review Institute (OMRI). In addition, as a leading rendering company in the U.S., if we were to never sell another bag of Nature Safe, all of these ingredients would be sold as animal feeds and petfood ingredients. They are, in actuality, part of the food chain.
I hope the above sheds some light on what more areas of country are seeing as a dark subject.