| 摘要 |
PROBLEM TO BE SOLVED: To obtain a liquid calcium fertilizer small in chemical injury, large in calcium content and excellent in preservation stability by mixing and dissolving by reaction a water soluble organic acid, calcium chloride, staked lime and/or quick lime with water and adjusting the concentration of calcium chloride and liquid property. SOLUTION: Calcium chloride and slaked lime and/or quick lime are mixed and dissolved by reaction in a water containing 1-3% gluconic acid, 1-5% lactic acid and >=5% acetic acid as the water soluble organic acid. The dissolved liquid composition is controlled to be 11% in the calcium concentration expressed in terms of CaO, 45-65% of total calcium concentration in the calcium concentration originating from calcium chloride and pH3-4.5 to produce the liquid calcium fertilizer. As the water soluble organic acid, formic acid and/or propionic acid can be further contained. |
