Zinc, iron, manganese and copper uptake requirement in response to nitrogen supply and the increased grain yield of summer maize.

PLoS One · 2014 · PMC3976344 · PMID 24705926

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a decreasing trendno p-value reported

an increasing trendno p-value reported

Straw Zn concentration showed a decreasing trend from 24.4 to 10.7 mg kg −1 while straw Mn concentration showed an increasing trend from 17.3 to 23.9 mg kg −1 with the increasing yield from GY1 to GY4.

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