近１０多年来，随着农业生产技术的进步，粮食产量逐渐提高，每年从土壤中带走的硫量增加；同时，生产上农家肥以及含硫化肥使用量减少，使土壤硫的补充减少，导致作物缺硫现象增加。为此，自１９９７年起，我们与美国硫研究所开展科研合作，探讨我省主要农作物的硫肥效应... In the recent 10 years, with the progress of agricultural production technology, the grain yield gradually increased, and the amount of sulfur taken away from the soil increased each year. At the same time, the reduction of the use of manure and sulfur fertilizer in production led to the reduction of soil sulfur supplement, Lead to sulfur deficiency in crops increased. To this end, since 1997, we have conducted scientific research cooperation with the Sulfur Institute of the United States to explore the effect of sulfur fertilizer on the main crops in our province.