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.
结果表
，增施
肥，平衡氮、钾肥及采取喷灌
方式均能增加生菜叶
含量，减少干
心发生。
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.
结果表，增施肥，平衡氮、钾肥及采取喷灌方式均能增加生菜叶含量，减少干心发生。
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