Inorganic Chemicals Industry ›› 2020, Vol. 52 ›› Issue (12): 7-11.doi: 10.11962/1006-4990.2020-0079

• Reviews and Special Topics • Previous Articles     Next Articles

Research and application progress of water-soluble agricultural ammonium polyphosphate

Liu Xu1,3(),Tang Jianwei2,3,Liu Yong1,3,Hua Quanxian1,3,Wang Baoming2,3()   

  1. 1. School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China
    2. School of Ecology and Environment,Zhengzhou University
    3. National Centre of Research & Popularization on Calcium,Magnesium, Phosphate and Compound Fertilizer Technology,Zhengzhou University
  • Received:2020-06-20 Online:2020-12-10 Published:2020-12-15
  • Contact: Wang Baoming E-mail:2434729843@qq.com;ziqiangdere@163.com

Abstract:

Low polymerization degree water-soluble ammonium polyphosphate is a new type of high-concentration fertilizer,which has been widely welcomed in fertilizer research and agricultural applications in recent years because of the advantages of slow release,high efficiency,safety and easy compounding.The recent research progress in the synthesis methods and agri-cultural experiments of water-soluble agricultural ammonium polyphosphate were summarized.In addition,the application advantages of water-soluble agricultural ammonium polyphosphate in agricultural production and the related quality testing methods of fertilizers were discussed,and the hydrolysis mechanism of water-soluble agricultural ammonium polyphosphate in soil was briefly analyzed.The problems in the practical production and application of agricultural ammonium polyphosphate at present as well as the development direction were expounded.

Key words: ammonium polyphosphate, low degree of polymerization, fertilizer

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