本文指出全世界有关缺硫的报导越来越多,并探讨了引起这种缺硫现象的主要原因。文章还提到了亚太地区作物对硫的反应以及硫作为营养元素的重要意义。最后文章阐述了土壤中硫素保持收支平衡的重要性,认为这种平衡关系是判断作物吸收硫,士壤施硫及作物需硫情况的主要依据。 This article points out that there are more and more reports on sulfur deficiency in the world and the main reasons for the sulfur deficiency. The article also mentions the importance of crop responses to sulfur and the role of sulfur as a nutrient in the Asia Pacific region. Finally, the paper elaborates the importance of sulfur balance in the soil, and holds that the equilibrium relationship is the main basis for judging the sulfur uptake by crops, the sulfur supply from crops and sulfur demand of crops.