新型硫基微量养分的配制

New sulphur based micronutnent formulation

论述微量养分对植物生产的重要性和Envirosul微量养分的配制。硫磺作为其中的重要组分,对于Cu、Fe、Mn、Zn微量养分的控释具有关键作用。当微量养分以不溶性氧化物的形式与硫一道施入土壤时,存在于土壤中的硫氧化细菌将硫转化为硫酸,这些硫酸又将不溶性微量养分氧化物转化为易溶性硫酸盐,以供植物吸收。由于硫被氧化菌氧化为硫酸的速率取决于硫磺的粒度,因此可通过控制硫磺粒度的大小来控制微量养分的释放速率。

The importance of micronutrients to plant growing and formulation of Envirosul micronutrient are discussed. As an important component, sulphur plays a key role in controlled releasing of micronutrients such as Cu, Fe, Mn and Zn. When micronutrients are applied in insoluble oxide form with sulphur in the soil, sulphur oxidizing bacteria present in the soil work on the sulphur to make it into sulphuric acid, which converts the insoluble micronutrient oxides into the more soluble micronutrient sulphate form that the plant can assimilate. Because the rate at which sulphur is oxidized into sulphuric acid by bacteria depends on the sizes of sulphur particles, the particle size of sulphur can be used to control the releasing rate of micronutrients.