本世纪60年代前,世界农业中硫的平衡情况是好的。此后,不少研究者相继揭示出一些地区的土壤缺硫。这首先是由于燃料结构的变化,今天,可燃气,石油和电能的消耗量比煤多了,因而进入土壤中的硫减少了,并且各个地区硫的分布也不平衡。工业企业废气净化措施的采用和高浓度不含硫的无机肥料的增加,也使进入土壤中的硫减少。此外,随着农作物产量的提高,从土壤中带走 By the 1960s, the balance of sulfur in world agriculture was good. Since then, many researchers have revealed the lack of sulfur in some areas of the soil. This is primarily due to the changes in the fuel structure. Today, combustible gas, oil and electricity consume more coal than coal, so the sulfur in the soil is reduced and the distribution of sulfur in each area is also unbalanced. Adoption of industrial enterprises to purify exhaust gas and the increase of high-concentration sulfur-free inorganic fertilizers also reduce the amount of sulfur that enters the soil. In addition, as the crop yields increase, it is taken from the soil