Nitrogen management for furrow-irrigated rice produced on silt-loam soils

Article Agronomy

Scheduling rice irrigation using soil moisture thresholds for furrow irrigation and intermittent flooding

Justin L. Chlapecka et al.

Summary: This study compared the effects of different soil moisture thresholds on rice yield and irrigation water use efficiency, with results suggesting that a -45 kPa soil moisture threshold can improve irrigation water use efficiency under both AWD and FIR.

AGRONOMY JOURNAL (2021)

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Article Agronomy

Nitrogen management of furrow-irrigated rice on clayey soils

Justin L. Chlapecka et al.

Summary: Research on furrow-irrigated rice production management on clayey soils found that a three-way split application of nitrogen at V5-V6 stage with 84 kg N ha(-1) initially, 84 kg N ha(-1) two weeks later, and 52 kg N ha(-1) one week after the second application consistently maximizes grain and milling yield. Total nitrogen uptake was highest with three to four applications and/or higher total nitrogen rates, while a greater number of split applications improved nitrogen recovery efficiency and agronomic efficiency.

AGRONOMY JOURNAL (2021)

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Article Agronomy

Assessing Seasonal Methane and Nitrous Oxide Emissions from Furrow-Irrigated Rice with Cover Crops

Sandhya Karki et al.

Summary: Improved irrigation management, such as furrow-irrigated rice (FR), shows potential to reduce methane emissions but may increase nitrous oxide emissions. While FR and FRCC significantly reduced CH4 emissions, they also increased N2O emissions compared to MIRI. Nonetheless, there was no significant difference in the overall global warming potential among FR, FRCC, and MIRI.

AGRICULTURE-BASEL (2021)

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Article Agronomy