在Waitaki Basin的黄灰壤上的4个地点2个海拔高度和2个方向),研究多年生豆科牧草草地(苜蓿、红三叶、白三叶和杂三叶草混合),研究了硫肥不同形态、不同用量的作用。过磷酸钙和混合有溶解硫的过磷酸钙(MMSS)较过筛的农用元素硫(S~°)效果好。施用过磷酸钙和MMSS肥料,每2年施一次,施50硫kg/ha可达到最大产量的90％。而农用元素硫最少需要每2年施用一次,施用100硫kg/ha,才能达到 Four perennial legume pastures (alfalfa, red clover, white clover and hybrid clover) were studied at four locations on the yellow-brown soils of the Waitaki Basin at two altitudes and two orientations. Different forms of sulfur fertilizers , The role of different dosage. SSP and mixed Sulphurised Sulphite (MMSS) are more effective than sifted agricultural element S (°). Application of superphosphate and MMSS fertilizers, once every 2 years, applied 50 sulfur kg / ha can reach 90% of the maximum output. While agricultural elemental sulfur needs to be applied at least once every two years to achieve 100 sulfur kg / ha