Abstract: Silage corn is a high-quality feed for livestock raising and provides forage guarantee for animal husbandry.In this study,a silage maize variety of"Great Wall 9904"were planted in three forage production bases with irrigation condition in Xilinhot of Inner Mongolia;the"3414"fertilizer efficiency test was carried out by using the technology of soil testing formula fertilization in plots with high,middle and low fertility;the results were subsequently analyzed and studied.The index system of soil nutrient abundance and deficiency for silage maize planting on irrigated land in Xilinhot City was preliminarily determined,which provides a basis for scientific and rational fertilization in silage maize planting in this city.