The results of the differential mineral fertilization in the automatic mode according to the task map

Off-line differential fertilization is one of the science-intensive technological processes in the precision farming system. The process ensures the change of the norm during the movement of the device in the field in the automatic mode according to the task map compiled on the personal computer for the elementary parts of the field. In the conditions of Western Siberia, studies have been conducted to identify the effectiveness of a differentiated method of applying nitrogen fertilizers for the planned yield of spring wheat of 3.0 t/ha. Off-line implementation of the technological process allows reducing the rate of fertilizers by 7.7-21.1%, production costs by 1.9-3.4% compared to the traditional method. It is shown that the application of top-dressing in off-line mode increases production costs by 10.2%, the rate of ammonium nitrate - 34.4-68.5% relative to the differential application of 4.0 t/ha to the planned yield of spring wheat.