There has been a considerable amount of interest in using liquid fertilizer materials at corn planting. Most producers are open to this as long as the fertilizer can be applied on the seed and thus they do not need to use a starter attachment. The major concern with this practice is germination damage from the fertilizer. In the past, the damage has been attributed to the salt and ammonium content of the fertilizer. Several questions have arisen about this practice. How much fertilizer can I put on? Does the soil texture make a difference on fertilizer damage to the seed? Does soil moisture affect the damage? Is it the ammonium or the salt index of the fertilizer that is most important in evaluating the damage? Are difference crops more sensitive than others.