Seed germination can be damaged when starter fertilizers or those with sulfur or high nitrogen content are placed directly on the seed (in drier or sandy soils).
Soil types play a large role in what method of fertilizer application should be used (direct or split), so we would advise you to talk to your fertilizer dealer or crop consultant. Many farmers with higher rainfall and/or heavier textured soils sometimes put fertilizer such as 10-34-0 or 9-18-9 on with the Y-Not Split-It.
Using the Y-Not Split-It with the Rebounder will give you a barrier of soil between the seed and the fertilizer. This little insurance could mean a lot to your peace of mind as well as higher yields. Many farmers and fertilizer/seed dealers are looking at this with great interest as a simple and beneficial way to give the crop an added boost in its earliest stage of development.
Ear size and bushels are determined early on in the developmental cycle, so you can see how this could be beneficial to the long term outcome. Even soybean yields can be increased with in-furrow fertilizer application. As much as five bushels per acre have been reported from farmers using the Rebounder with the Y-Not Split-It.