黄腐酸对磷的活化效果及活化磷肥的应用研究  

Study on Activating Effect of Fulvic Acid on Phosphorus and Application of Activated Phosphorus Fertilizer

作　　者：卫尤明 廖宗文[1] 毛小云[1] Wei Youming;Liao Zongwen;Mao Xiaoyun(College of Natural Resources and Environment,South China Agricultural University,Guangzhou,510642)

机构地区：[1]华南农业大学资源环境学院,广州510642

出　　处：《腐植酸》2022年第3期67-71,共5页Humic Acid

摘　　要：腐植酸具有活化矿物磷的功能,可用于活化磷肥的开发。化学检测与肥效试验表明,与一般的有机活化剂相比,腐植酸中分子量较小的黄腐酸可在2%的添加量下发挥更大的磷活化效能。因黄腐酸活化磷肥第1次与第3次浸提溶出的水溶磷含量差别不超过20%,表明该活化磷肥连续释磷更加平稳,更符合作物不同生长期的养分需求,因而获得更高的肥效。Humic acid can activate mineral phosphorus and can be used for the development of activated phosphorus fertilizer.Chemical detection and fertilizer efficiency test showed that compared with general organic activators,fulvic acid with small molecular weight in humic acid had more phosphorus activation efficiency with less addition(2%).For the first and third extraction of water-soluble phosphorus content form fulvic acid activated phosphorus fertilizer difference was less than 20%,the continuous phosphorus release should be more stable.As the regulation accorded with the nutrient needs of crops in different growth periods,higher fertilizer efficiency was obtained subsequently.

关 键 词：黄腐酸 活化磷肥 活化剂 连续释磷 

分 类 号：TQ314.1[化学工程—高聚物工业] S143.2[农业科学—肥料学]