Research result that the art and effect of passing inject supply calcium nutrition liquid in tree trunk of fruit indicate.The supply nutrition liquid of calcium with different time and different dosage were brought different effect.The skill could be add calcium content in fruit,prolong store time,add weight single fruit,prevent fruit blowout of pomelo,cherry etc,and it had safety,good effect,easy operating,low price and wide application.%通过对果树树干进行注射补钙技术与效果的研究结果表明：补钙时期、补钙剂量不同，其产生的效果各异。利用树干注射补钙技术可增加果实中的钙含量，延长果品贮藏期，增加果实单果重，防止柚子、樱桃等果实的裂果病。该技术具有使用安全、补钙效果好、易操作，成本低、应用范围广等特点。
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