氯化钙对乔纳金、北海道9号苹果苦痘病的防治研究

摘要

对乔纳金、北海道9号苹果喷施氯化钙防治苦痘病进行了试验研究，结果表明，花后1周喷1次0．25％的氯化钙或花后1周、花后6周各喷1次0．25％氯化钙2种方法都可以防治苦痘病的发生，以花后1周、花后6周各喷施1次氯化钙效果最好。%An experiment was conducted to control bitter pit of Jonagold and Hokkaido 9 apple by spraying calcium chloride. The results showed that the bitter pit could be controlled by spraying 0.25% calcium chloride onee one week after blossom and spraying 0.25% ealeium ehloride once one week and six weeks after blossom respectively. The effect is best when 0.25% ealeium chloride was sprayed once one week and six weeks after blossom respectively.