Shoot and root traits of summer maize hybrid varieties with higher grain yields and higher nitrogen use efficiency at low nitrogen application rates.

PeerJ · 2019 · PMC6637931 · PMID 31341742

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a decreasing trendno p-value reported

SLN and Pn tended to increase with the nitrogen application rate, whereas PNUE exhibited a decreasing trend ( Fig. 6 ).

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