| 摘要 |
PURPOSE: A manufacturing method of calcium fertilizer using limestone powder, being instead of mass of limestone, and briquet is provided, which enables reduction of production time and mass production by using a briquet boiler at home. The resultant fertilizer is affective to neutralize acidified soil and prevent foot and mouth disease. CONSTITUTION: The calcium fertilizer is manufactured by the following steps: mixing lime stone powder ground to less than 2mm and briquet(lignite or bituminous coal) with 20% of water, and compressing, where the used lime stone powder(more than 50% CaCO3) and briquet(more than 5000cal) are mixed in a ratio of 6 : 4 and lime stone powder(less than 50% CaCO3) and briquet(more than 5000cal) are mixed in a ratio of 6.5: 3.5; compressing to a shape of octagonal rod, cylindrical rod, etc. with 3.5-4kg of weight, 15cm of diameter and 14cm of height; putting a briquet(1) and a compressed product(2) on the bottom of a boiler(3), in turn; igniting the briquet, which results in burning the compressed product at 200-500deg.C for 10hrs.
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