Comment:

This variable pertains to one of the optional conservation practices available in NTT. This variable is constant with respect to the Crop type for the specific application. Autofertigation is the application of fertilizers, soil amendments, or other water-soluble products through an autoirrigation system. Autofertigation is an automatic fertilization process in which fertilizer is dissolved and distributed through the irrigation system. This makes autofertigation very similar to autoirrigation with the only additional user input required being nitrogen concentration. The amount of nitrogen in irrigation water in parts per million. Total N applied through autofertigation will be dependent upon the overall irrigation frequency which in turn is dependent upon water stress, frequency and maximum application factors set by the user.