How are the Nitrogen Recommendations calculated?
Nitrogen recommendations are based around the best practice for the farm. The farmer or agronomist will calculate the appropriate rate for the crop in relation to current season. For example 80 kg/ha Nitrogen may be appropriate for 2nd application at stem elongation (GS32). Any part of the crop that is at the target LAI for GS32 will receive 80 kg/ha N. Any part of the crop that is below the target LAI, in other words the canopy is too small, will receive more than 80 kg/ha. Any part of the crop that is above the optimum crop canopy, in other words the canopy is too big, will receive less than 80 kg/ha.
