nutrient-cost ratio

In agriculture, the nutrient-cost ratio is a key economic consideration. Farmers aim to balance the cost of adding nutrients, primarily through fertilizers, against the potential increase in crop yield and profit. This involves determining the most profitable rate of fertilizer application, as the law of diminishing returns applies – beyond a certain point, additional inputs yield smaller increases in output.12

Ideal fertilizer application also minimizes waste and environmental harm, such as water pollution from runoff, which is a negative externality not always accounted for in market costs. For animal feed, optimizing the nutrient-cost ratio involves using computer programs to select competitively priced ingredients that meet specific nutritional requirements for maximum production at the lowest cost.123