Current technology allows the application of most essential nutrients through orchard drip or flood irrigation systems. Irrigation water quality can be affected favorably by applying a suitable nitrogen fertilizer in irrigation water. Because of the acidizing effects of some nitrogen fertilizers, applying nitrogen in marginal irrigation water may help to reduce the negative effects of high sodium and salt content by freeing exchangeable calcium in the soil. The calcium can then exchange for the adsorbed sodium, allowing the sodium salts to be leached from the soil. In addition, the acidifying effect of applying nitrogen fertilizer in irrigation water may increase the availability and retention of plant micronutrients.
Anhydrous ammonia is a high-pressure liquid that becomes a gas at atmospheric pressure.
It may be applied by bubbling it into an irrigation canal at a point upstream of the field or border. When any chemicals are applied through a drip irrigation system, New Mexico law requires the use of a safety backflow prevention device to prevent the flow of chemicals back into a well or public water system. One source of nitrogen is not better than another. However, several characteristics should be considered before choosing a fertilizer for a specific purpose. Solubility, effect on soil pH, form of N, and associated nutrients are some of these considerations.