04 Apr Solubility vs. Biology
The Impact of Soluble Fertilizer Inputs on Agroecosystems
The notion that fertilizers must be water soluble for passive uptake b plant roots is inconsistent with the processes of nature. There is actually very little if any dissolved plant nutrients in well balanced natural soil solutions of productive soils. High concentrations of dissolved “plant food” are not typical of natural soil systems. For example, there is only about 1 pound of soluble nitrogen in an acre of soil solution under natural conditions. When highly soluble plant food is applied to living soil systems in quantities typical of high-input agriculture, they disrupt the complex relationships among microbes, plant roots, soil organic matter, and minerals, resulting in lost profits and extensive damage to the entire ecosystem. There is a place for soluble inputs in agriculture, but their use must be limited as they have a propensity to contaminate the soil and water environments. The use of highly soluble fertilizers creates conditions that are remarkable similar to human drug addiction 1; continued use only leads to further dependence on synthetic fertilizers and pesticide intervention.
Fortunately, numerous ecologically sound practices have emerged recently. The evolution of new bio-compatible inputs for sustainable agriculture meet more demanding standards than simple solubility. In fact, they generally ignore water solubility, making them fit for the purpose of life. Mineral inputs used in ecologically sound agriculture have to be geochemically complex underground living ecosystem. Additionally, they must have surface structures that are compatible with the complex soil carbon compounds released by plants and microbes; synthetic chemicals cannot meet those requirements. For more information, please read the following article.