免追肥,養根,促根,多生側枝,促根瘤生長發育,補充腐殖酸磷鉀及微量元素技術指標: 腐殖酸≥30g/L、黃腐酸≥10g/L、磷≥80g/L、鉀≥120g/L、Zn≥8g/L、Mo≥2g/L、Fe≥10g/L