每公顷基施:0(CK)、36.3(S₁)、413.85(S₂)kg硫时,玉米每公顷产量分别为9 784.5、10 639.5、11 322 kg,处理分别比对照增产8.73%和15.71%,并提高了果穗长度,增加了穗行数、行粒数,对千粒重影响不大.单株对氮、磷、钾、锰、锌、镁的吸收量表现为S₂>S₁>CK.施入(NH₄)₂SO₄后,0～20 cm、21～40 cm、41～60 cm土层的pH值降低,收获后有所回升,各处理各土层的pH值均表现为CK>S₁>S₂.施入硫肥后,0～60 cm土层全氮含量降低,速效钾的含量提高,0～20 cm土层中的速效磷含量有所提高,21～40 cm土层变化不大,41～60 cm土层中的速效磷含量降低。

0(CK)、36.3(S1)and 413.85(S₂)Kg of sulphur applied per hectare.In field experiment,the yield got 9784.5、10639.5 and 11322 Kg per hectare,respectively.S₁ and S₂ treatments gave 1.0873 and 1.1571 times grain yield of CK.The application of sulphur increased ear length,rows ear^-1,grains row^-1and grains ear^-1.But,S produced little increasment of grain weight.N,P,K,Mn,Zn,Mg absorption in aplant as well as Fe,Mn,Zn contont in function leaves increased with amount of sulphur applicated.Application of(NH₄)₂SO₄ decreased pH in soil layer of 0～20 cm.21～40 cm and 41～60 cm in spit of slightly raise of it.At harvesting,sulphur fertilizer induced content of total N and raise content of active K in0～60 cm soil layer.Sulphur fertilizer slightly enhance content of active P in 0～20 cm soil layers.little variation in 21～40 cm soil layers and slighty decrease in 41～60 cm soil hyer.