如果它们有任何黄化的迹象，就该丢掉了。

If they show any signs of yellowing, they should be discarded.

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土壤质地不良也是引起樟树黄化的原因之一。

The soil texture in urban conditions is too harden and clay, which is one of the reasons to yellows.

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幼树初投产脐橙次生果黄化的高发生率与树体钙营养失调密切相关。

For the first bearing fruit tree, high rate of generation of xanthochroism of secondary fruit of the navel orange is closely concerned with nutrition disorder of Ca in the tree.

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