1. Uage: This fertilizer is chelated microelements fertilizer specilly USD for oil palm and meadow, which lack of Cu, Zn and B element.2. This kind of fertilizer which microelement are chelated with EDTA or humic acid to increace absorbility. And this products were produced in particular prosing, it's not only directly aupplement the trace elements, but also greatly imrpoves the utilization rate.3. Production Description or Specification(1)15%Cu + 10%Zn(2)9%Cu + 5%Zn(3)8%Cu +4%Zn(4)7%Cu + 4%Zn+7%B(5)6%Cu + 3%Zn+6%B