腐植酸共聚物对赤红壤中活性铝的影响

基金项目: 广东省自然科学基金资助项目(970510)，广东省自然科学基金团队项目资助课题(20003011)，华南理工大学自然科学基金资助项目(E5302205)

Effect of Humic Acid Copolymers on Aluminum Activity in Lateritic Red Soil

摘要: 研究了以合成腐植酸、丙烯酰胺、丙烯酸共聚物作为土壤结构改良剂改良赤红壤后，其土壤中活性铝的形态及含量变化．结果表明，该共聚物可抑制土壤中铝的活性，改良后的土壤活性铝的存在形态有所改变，活性铝的含量减少，土壤的pH提高．
- 腐植酸共聚物 /
- 赤红壤 /
- 活性铝 /
- 土壤结构改良剂 /
- 形态 /
- 含量 /
- 铝毒
Abstract: This paper reports study on the forms and amount of active aluminum occurring in lateritic red soil improved by the copolymers as soil structural amendment, and which were synthetized from humic acid, acrylamide and acrylic acid. The experimental results showed that the copolymers suppressed aluminum activity with change in the forms and decrease in the amount of active aluminum in the soil and the pH of the soil was raised.
- humic acid copolymer /
- soil /
- active aluminum /
- aluminum phytotoxicity