Abstract: Pot experiment on 3 crops (wheat, corn, oilseed rape) and a pasture (clover) under 5 levels (0, 5, 10, 20, 40 mg·kg^-1) of sulfur (S) was carried out to study Sapplication on yield production, Scontents and their relationship of these crops. The results showed that under Sapplication, the biomass of four plants increased by 5～32%, and the grain yield increased by 3～20%. The contents of Svaried with different corps, for example, the content of Sin the oilseed rape was the highest (0.479～1.228%), and that in corn was the lowest (only 0.043～0.091%). The contents of Sin different plant parts of the same crop had a positive correlation with content of Sapplication. Both the biomass and grain yield for all the crops except the clover had a close correlation with the content of Sapplication. With available Sin the soils increased, the amount of Sabsorbed by crops was increased at the beginning, and then decreased after reached the peak.

Key words: Sulfur fertilization, Crops, Increase production