Note to any readers....set your manure knifing rig to 18 inches please! For you EU internet farmers, that's only 1/2 meter deep. (Roughly)
The farmer I help in Lawrence county, TN, doesn’t apply any manure or fertilzer more than 4” deep. The second application of liquid nitrogen happens at about 2-3 weeks after crop emergence, and is laid right on top of the ground, next to the plant row on each side. Some of that is surely lost if there’s a heavy downpour.