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Nitrogen Dynamics in Tropical Soils Treated with Liquid and Granular Urea Fertilizers

Author

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  • Ahmmed Md Motasim

    (Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Malaysia)

  • Abd Wahid Samsuri

    (Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Malaysia)

  • Arina Shairah Abdul Sukor

    (Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Malaysia)

  • Amin Mohd Adibah

    (Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Malaysia)

Abstract

The mineralization of urea fertilizer mostly regulates the nitrogen dynamics in the soil. A laboratory-scale study was conducted to compare the nitrogen dynamics in two tropical soil series incubated with either liquid urea (LU) or granular urea (GU) at 0, 300, 400 or 500 mg/kg of soil. The soils samples used in the experiment were the Bungor and Selangor soil series which have a sandy clay loam and clay texture, respectively. The NH 4 + -N, NO 3 − -N concentration in the soils were measured for four weeks to determine the urea-N mineralization while ten pore volumes of water were used for the NH 4 + -N and NO 3 − -N leaching loss. At the same application rate, higher NH 4 + -N and NO 3 − -N concentrations were recorded in the LU applied soils throughout the incubation period in case of N mineralization. Urea-N recovery was higher in GU than LU treated soils in the first two weeks while no urea-N was present in both GU and LU treated soils after the third week of incubation. The leaching of N (NH 4 + -N and NO 3 − -N) was higher in GU treated soils than that of LU and leaching was increased with increased application rate in both LU and GU in both soils. The NH 4 + -N and NO 3 − -N concentrations were higher in the Selangor soil whereas the total N leaching loss was higher in Bungor soil. The results suggest that the LU was a better N fertilizer source than GU for rapid mineralization, quicker N availability and lower N leaching loss.

Suggested Citation

  • Ahmmed Md Motasim & Abd Wahid Samsuri & Arina Shairah Abdul Sukor & Amin Mohd Adibah, 2021. "Nitrogen Dynamics in Tropical Soils Treated with Liquid and Granular Urea Fertilizers," Agriculture, MDPI, vol. 11(6), pages 1-12, June.
    • Handle: RePEc:gam:jagris:v:11:y:2021:i:6:p:546-:d:574545
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    References listed on IDEAS

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    1. Mark A. Sutton & Oene Oenema & Jan Willem Erisman & Adrian Leip & Hans van Grinsven & Wilfried Winiwarter, 2011. "Too much of a good thing," Nature, Nature, vol. 472(7342), pages 159-161, April.
    2. Ahmmed Md Motasim & Abd Wahid Samsuri & Arina Shairah Abdul Sukor & Amin Mohd Adibah, 2021. "Gaseous Nitrogen Losses from Tropical Soils with Liquid or Granular Urea Fertilizer Application," Sustainability, MDPI, vol. 13(6), pages 1-11, March.
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    Cited by:

    1. Fabio Vale Scarpare & Luciana do Carmo Zotelli & Robson Barizon & Sergio Gustavo Quassi de Castro & Andre Herman Freire Bezerra, 2023. "Leaching Runoff Fraction for Nitrate and Herbicides on Sugarcane Fields: Implications for Grey Water Footprint," Sustainability, MDPI, vol. 15(8), pages 1-15, April.

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