大气质量提高与农业中的硫肥需求

论述了植物对硫素的生理需求，大气中含硫化合物的来源、组成与含量以及对植物生态系统的硫素补充作用，植物对气态硫化物的吸收、同化能力及适宜浓度等．近年来由于人类健康与生态环境的需要，世界各国纷纷通过法律体制对工业含硫废气的排放标准进行了严格控制，却导致了作物缺硫现象的频繁发生，在某些地区硫已成为限制农业生产的最重要肥料限制因素．为此，全球农业中硫肥的需求量猛增且有效性范围不断扩大，进而对硫肥的研究与开发利用提出了新的要求

Air quality improvement and sulfur fertilizer requirement in agriculture.

This paper reviewed the physiological requirement of plants for sulfur and the source, composition and concentration of sulfur containing compounds in the air. It also discussed their supplementary effects to plant ecosystems, the plant's absorption and assimilation to the gaseous compounds and their suitable concentrations for plants. As the requirements of human's health and eco environment in recent years, many countries have started to control the emission rate of sulfur containing waste air by legislation, which, on the contrary, has frequently resulted in sulfur deficiency for crops. In some areas, sulfur is becoming one of the most important factors limiting the agricultural development. Therefore, sulfur requiring amount and expansion extent are increasingly enlarged in the global agriculture, and more work on the research and development of sulfur fertilizers should be conducted.