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What kind of deficiency is that?

GueedoWeedostarted grow question 4y ago

What?

GueedoWeedo

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Leaves. Other

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JerkFlowersanswered grow question 4y ago

Nitrogen. Because it is a mobile nutrient, plants can borrow their own nitrogen stores out of their older leaves to make up for the deficiency, which is why the older leaves curl up more and are more yellow.

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