硫是植物正常生命活动所必需的大量元素之一,植物对硫的需要量与对磷的需要量大致相当。在许多作物中含硫量可占干物重0.05—0.5％,作物在一年内吸收硫素量每亩可达1.07—5.73斤。硫在植物体内生理作用的重要性,可与氮、磷、钾相匹敌。然而,直到现在,人们对硫与植物的关系以及硫肥在农业生产上的应用仍缺乏应有的重视。近年来,世界上像澳大利亚、印度尼西亚、美国及日本等,都先后在多种土壤和农作物上发现了硫的缺乏及其对产量和品质的影响,也观察到施田硫肥的增产效果,我国 Sulfur is one of the large number of elements necessary for the normal life activities of plants. The demand of sulfur by plants is roughly equal to that of phosphorus. In many crops, the sulfur content can account for 0.05-0.5% of dry matter, and the amount of sulfur absorbed by crops in one year can reach 1.07-5.73 kg per mu. Sulfur in the physiological role of plants in the importance of nitrogen, phosphorus and potassium can match. However, until now, people still lacks due attention to the relationship between sulfur and plants and the application of sulfur fertilizer in agricultural production. In recent years, the world such as Australia, Indonesia, the United States and Japan, have found in a variety of soils and crops on the lack of sulfur and its impact on yield and quality, but also observed the application of fertilizer Tianshutian yield, our country