免追肥,補充氮及微量元素
產(chǎn)品成分:總氮≥300g/L、酰胺態(tài)氮≥154g/L、硝態(tài)氮≥73g/L、Zn≥13.5g/L、Mn≥3g/L、Cu≥2g/L、Mo≥0.5g/L、Fe≥1g/L