Barley spraying method

The invention provides a barley pesticide spraying method, and belongs to the technical field of agricultural planting. The barley pesticide spraying method comprises the following steps that A, a control center is arranged at the position of a middle O point, crossing one side of an N area, of the downwind side of a wheat field planting area; b, presetting an unmanned aerial vehicle flight route according to the planting area size and the working site wind speed; and step C, according to the flight route in the step B, starting to spray pesticide from the point O of the control center along the downwind position to the point E, flying until the wind speed on one side of the downwind pesticide spraying coverage area M avoids the position of the point D in the middle of the sideline of the area G, and then flying to one side of the wheat field along the S-shaped route to spray the pesticide. According to the method, wind direction and wind speed factors are calculated in the route, so that repeated coverage of