Abstract: In order to clear about drought resistance, seedling protection, yield-increasing effects and time-course of action of applying sandy soil amendment in spring or autumn. Through the field comparison test, the author studied it effects on the germination rate, the growth in the seeding phrase and the yield. The results showed that: applying sandy soil amendment in spring or autumn performed the more obvious the ability of drought resistance, seedling protection and yield increased, and the order of effects showed A1>A2>CK1 in 2012 and A1>A2>A3>A4>CK2 in 2013, and the effects of the second year after being applicator to soil were significantly higher than the first year in the annual variation, among them, applying it in autumn performed best. In the seeding stage in 2012, emergence rate of A1 and A2 increased by 4.58% and 1.76% than that of the CK1; plant height increment per day, plant stem girth, dry matter growth rate in corn seeding stage increased by 4.90% and 0.00%; 9.74% and 3.90%; 23.99% and 8.72%; the yield increased by 12.03% and 5.49%. In the seedling stage in 2013, emergence rate of A1, A2, A3 and A4 increased by 8.73%, 7.57%, 4.61% and 2.13% than that of the CK2; plant height increment per day, plant stem girth, dry matter growth rate in corn seeding stage increased by 15.00%, 9.90%, 9.90% and 5.00%; 17.06%, 10.78%,7.78% and 6.59%; 46.14%, 23.51%, 14.88% and 7.37%; the yield increased by 15.78%, 11.23%, 10.99% and 5.06%. Correlation analysis among mergence rate, plant height, plant stem, dry matter growth rate and the yield in the seeding stage in 2012 and 2013 had very significant positive correlation. And correlation coefficients among indexes in corn seeding stage and the yield were 0.924, 0.877, 0.975, 0.999 in 2012 and 0.951, 0.998, 0.899, 0.933 in 2013.