Abstract:In order to improve the soil condition after the reclamation of hollow village, and to resume the agricultural production quickly, seven different returning materials were selected, and their effects on soil water storage, soil nutrition, water use efficiency and crop yield were analyzed. The results revealed that the soil water storage (0-105 cm) of different returning materials were significantly higher than the control in the summer maize growing season (P<0.05). The average soil water storage was increased by 10.2 mm to 32.9 mm than control. Different returning materials could effectively increase temperature and conserve soil moisture. After reclamation in the seasons, the organic matter, total nitrogen, available phosphorus and available potassium of the reclaimed soil using the different returning materials were respectively increased by 12.50%~66.44%, 15.15%~20.00%, 6.58%~64.62% and 18.24%~26.82% compared with the control. The nutrients contents were significantly different from the control (P<0.05), there was significant difference in nutrients contents except the total nitrogen using the different returning materials(P<0.05). The average height of maize using the different returning materials was significantly higher than that of the control, which increased by 13~29 cm. Compared with T0, TFC, TF, TSC, TSF and TFC treatment significantly increased the yield of maize, by 18.40%~48.50%, TF, TSC and TSF treatment significantly increased the water use efficiency of summer maize, by 12.52%~44.47%. In the loess hilly region in the hollow village renovation, the composited application of organic fertilizer and fly ash could obviously improve farmland soil water, heat and nutrients contents, improve the summer maize plant height, yield and water use efficiency. These two should be the most suitable returning materials for the loess hilly hollow village renovation, and have an important significance for the improvement of soil quality in the reclaimed hollow village.