Fertilizer Production and Claims

Fertilizer use has centered on the macro-nutrients N, P and K, often in solid forms, because they are needed in the largest quantities and give immediate yield response. As a consequence, soils in various places have been depleted of micro-nutrients, even though these are required in lower amounts. Crop yields decline and product quality is reduced, ultimately leading to malnutrition. Fertilizer production should take these and other emerging agricultural and food challenges into account.

Many individuals and companies claim to have found fertilizer compositions, additives, coatings, biological agents and other similar products that improve nutrient uptake and plant growth. Often, the validity may not have been verified, leading to unnecessary costs and negative side effects. The complexity of the ecological processes may, for instance, cause products to be effective only under specific crop and environmental conditions. Such products need systematic and scientific scrutiny.