Field Notes May 24, 2010; localized decline, zinc deficiency, bronzing

 

Lime induced zinc deficiency

Localized decline

The two photographs above show similar field symptoms and the two following show similar symptoms on leaves of rice plants.  Both exhibit zinc deficiency sypmtoms, but for different reasons.  In the first field the problem was induced by an application of lime to a previous soybean crop.  In the case of Localized Decline we know that zinc is deficient but we do not know exactly why it happens.  Plants affected by Localized Decline will also have high levels of iron and aluminum in them.

Lime induced zinc deficiency symptoms

Zinc deficiency associated with Localized Decline

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