Synchronizing Nitrogen Fertilization and Planting Date to Improve Resource Use Efficiency, Productivity, and Profitability of Upland Rice.

Front Plant Sci · 2022 · PMC9158749 · PMID 35665171

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0.0010

closest p · 0.0× alpha

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highly significantp < 0.001actually significant

Highly significant ( p < 0.001) and positive associations were observed among agronomic attributes, N uptake, NUE, and crop water productivity of upland rice in correlation assessment.

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an increasing trendno p-value reported

Crop water productivity also indicated an increasing trend with N fertilization, and it was positively associated with plant N uptake and grain yield.

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a decreasing trendno p-value reported

NUE has also indicated a decreasing trend with an increase in N fertilization rates (Barbieri et al., 2008 ) due to high levels of N in the soil, and NUE in rice production systems has decreased (Santiago-Arenas et al., 2021 ).

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