To understand the effect of different coverings on the field environment and nitrogen using efficiency of aerobic rice, five treatments used plastic film, wheat straw, rapeseed hull, grass, and uncovered bare land as control with 3 replicates were applied to aerobic rice. The results indicated that plastic film mulching had good warming and water retention effects. Wheat straw, rapeseed hull and grass mulching were affective for good heat insulation and water retention. It also had effective utilization for rainwater. It was found that all these coverings did well in promoting the growth quality and increasing the yield of aerobic rice. Rice yields increased by 9.9%, 16.9%, 22.5% and 8.5% comparing to no coverings. Four coverings increased the available nitrogen, phosphorus and potassium contents of the soil, and improved soil fertility. Among all the coverings, wheat straw and rapeseed hull had the best effect on supplying fertilizer. Take all the factors for growth and yield in this study into consideration, the rapeseed hull is the best choice of dry cover for aerobic rice, and then is by wheat straw.