To introduce the primary materials used in cropping systems to deliver nutrients to the field. Overview Fertilizer use has led to the ascendance of U.S. agriculture in the world. After World War II, the munition of plants producing Nitrogen were converted to plants that could manufacture fertilizer Nitrogen. Cheap, available Nitrogen was responsible for the substantial increase of corn production. Fertilizers accounted for about half of the increase in crop yields in the U.S. between 1941 and 1955.
Potassium is essential to the smooth running of plant enzymes into the plant.
These are several common carriers of these elements, and their use is ultimately determined by their cost and the concentration of the essential elements. Application of these materials is often a compromise between economics and plant intake efficiency. Management of fertilizers is a major part of a modern agricultural system, and is an important consideration in a sustainable agricultural system. As fertilizer use becomes more and more expensive, and application methods become critical for both economically sound and environmentally responsible agriculture. In modern agricultural systems, increased emphasis is being made to properly obtain soil samples to estimate fertilizer weeds.