免追肥，补充腐殖酸氮磷钾及微量元素

产品成分：腐殖酸≥30g/L、黄腐酸≥10g/L、氮≥150g/L、磷≥50g/L、钾≥90g/L、Zn≥13.5g/L、Mn≥3g/L、Cu≥2g/L、Mo≥0.5g/L、Fe≥1g/L