The results showed: inncrease application of Ca, balance application of N and K and sprinkler irrigation could increase Ca content of lettuce leaves, reduce occurring of tipburn.
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结果表明,增施钙肥,平衡氮、钾肥及采取喷灌的方式均能增加生菜叶片的钙含量,减少干烧心的发生。
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