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Nitrogen Responsiveness of Maize Hybrids Under Dryland Conditions

Author

Listed:
  • Violeta Mandić

    (Institute for Animal Husbandry, 11080 Belgrade, Serbia)

  • Vesna Krnjaja

    (Institute for Animal Husbandry, 11080 Belgrade, Serbia)

  • Zdenka Girek

    (Institute for Medical Research, University of Belgrade, 11000 Belgrade, Serbia)

  • Milan Brankov

    (Maize Research Institute “Zemun Polje”, Zemun, 11185 Belgrade, Serbia)

  • Nenad Mićić

    (Institute for Animal Husbandry, 11080 Belgrade, Serbia)

  • Miloš Marinković

    (Institute for Animal Husbandry, 11080 Belgrade, Serbia)

  • Aleksandar Simić

    (Faculty of Agriculture, University of Belgrade, 11080 Belgrade, Serbia)

Abstract

Nitrogen (N) plays a decisive role in the growth and yield of crops. Hence, a high maize grain yield depends upon substantial N inputs. In the present study, morphological traits and yield components, grain yield, rain use efficiency (RUE), and N partial factor productivity (NPFP) were analyzed in two maize hybrids (ZP666 and NS6030) for 2 yr using four N rates (0 (N0), 60 (N60), 120 (N120), and 180 (N180) kg N ha −1 ). In a climatically more favorable year (2022), the studied traits and NPFP were higher, while RUE was lower. Hybrid ZP666 had higher values of morphological traits and yield component traits, except 1000-grain weight, grain yield, RUE, and NPFP, than hybrid NS6030. The highest values for morphological traits, yield components, grain yield (9383 and 9456 kg ha −1 ), and RUE (27.1 and 27.2 kg ha −1 mm −1 ) were obtained at 120 and 180 kg N ha −1 . The NPFP decreased significantly with increasing N input, from 137.6 (control) to 52.5 kg grain per kg fertilizer N (180 kg N ha −1 ). A suitable hybrid selection and the application of a moderate N fertilizer rate of 120 kg N ha −1 could contribute to high yields and lower nitrogen losses to the environment and promote sustainable agriculture.

Suggested Citation

  • Violeta Mandić & Vesna Krnjaja & Zdenka Girek & Milan Brankov & Nenad Mićić & Miloš Marinković & Aleksandar Simić, 2025. "Nitrogen Responsiveness of Maize Hybrids Under Dryland Conditions," Agriculture, MDPI, vol. 15(13), pages 1-15, June.
    • Handle: RePEc:gam:jagris:v:15:y:2025:i:13:p:1387-:d:1689631
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    References listed on IDEAS

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    1. Aakash & Narendra Singh Thakur & Manoj Kumar Singh & Lalita Bhayal & Kamlesh Meena & Sharad Kumar Choudhary & Narendra Kumawat & Ram Kumar Singh & Udai Pratap Singh & Shrish Kumar Singh & Pratik Sanod, 2022. "Sustainability in Rainfed Maize ( Zea mays L.) Production Using Choice of Corn Variety and Nitrogen Scheduling," Sustainability, MDPI, vol. 14(5), pages 1-19, March.
    2. Ivica Buhiniček & Dražen Kaučić & Zdravko Kozić & Mirko Jukić & Jerko Gunjača & Hrvoje Šarčević & Domagoj Stepinac & Domagoj Šimić, 2021. "Trends in Maize Grain Yields across Five Maturity Groups in a Long-Term Experiment with Changing Genotypes," Agriculture, MDPI, vol. 11(9), pages 1-10, September.
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