GB/T 17420-1998(XG1-2000) Amendment No. 1 of "Trace Element Foliage Fertilizer" has been changed from GB/T 17420-1998 Foliar microelement fertilizer.
GB/T 17420-1998(XG1-2000) Amendment No. 1 of "Trace Element Foliage Fertilizer" was changed to GB/T 17420-2020 Foliar microelement fertilizer.
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