| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid fertilizer containing 2,2'-iminodipropanoic acid and/or its salt. SOLUTION: The liquid fertilizer includes 2,2'-iminodipropanoic acid and/or its salt as a stabilizer, further contains magnesium phosphite and has favorably a pH of 3.5 or below. The coordinate bond of calcium is favorably performed to 2,2'-iminodipropanoic acid and/or its salt. 2,2'-Iminodipropanoic acid and/or its salt, calcium and magnesium phosphite are dissolved in an aqueous medium and the liquid fertilizer is favorably clear. The content of 2,2'-iminodipropanoic acid and/or its salt is favorably 0.1 mass% or more and 30 mass% or less. A by-product produced in an alanine producing step is favorably used as 2,2'-iminodipropanoic acid and/or its salt. COPYRIGHT: (C)2011,JPO&INPIT |
