Research Article

Effect of Slow-Release Nitrogen Fertilizer with NBPT Inhibitor on Popcorn (Zea mays L. everta) Yield and Quality

Volume: 30 Number: 1 June 23, 2025
EN

Effect of Slow-Release Nitrogen Fertilizer with NBPT Inhibitor on Popcorn (Zea mays L. everta) Yield and Quality

Abstract

This study was conducted to determine the effect of slow-release nitrogen with NBPT inhibitor [(N-(n-butyl) thiophosphoric triamide (NBPT)] fertilizer doses on yield and yield components in popcorn under second crop conditions in Sanlıurfa in 2022 and 2023. The experiment was conducted in a randomized block trial design with 3 replications. In the research, the R-997 popcorn variety was employed as the crop material. Slow-release urea fertiliser with NBPT inhibitor doses were utilised at the following rates: 0, 4 kg da-1, 8 kg da-1, 12 kg da-1, 16 kg da-1, 20 kg da-1, 24 kg da-1, 28 kg da-1, 32 kg da-1, respectively. The analysis of variance revealed that slow-release nitrogen dose applications had a statistically significant impact on several key traits, including the number of kernels per ear, ear diameter, ear length, thousand grain weight, and grain yield (P≤0.01). Furthermore, some quality parameters, including protein ratio, popping volume and unpopped kernel ratio, were also found to be statistically significant (P≤0.01). With the exception of the control, the application of slow-release nitrogen (N) at increasing doses was observed to have a positive effect on the studied traits and grain yield, apart from unpoped kernel. The analysis of regression indicated that the highest grain yield was achieved with the inclusion of the slow-release N with NBPT inhibitor at a dosage of 23 kg N ha-1, while the lowest grain yield was observed in the treatment where no nitrogen was applied. The use of slow-release nitrogen fertilisers may be recommended in areas of high evaporation and hot climates.

Keywords

Supporting Institution

The Scientific Research Projects Coordination Unit of Harran University (BAP)

Project Number

22252

Thanks

The Scientific Research Projects Coordination Unit of Harran University (HUBAP) provided financial support for the investigation (Project number: 22252). We would like to express our gratitude to the HUBAP council for their finansel support in this endeavour.

References

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  5. Bucak, K., & Akgun, I. (2024). The effect of different nitrogen fertilizer and dose applications on some yield and yield components of popcorn under Isparta ecological conditions. Turkish Journal of Science and Engineering, 6(2), 99-113. https://doi.org/10.55979/tjse.1512449
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  7. Cantarella, H., Otto, R., Soares, J. R., & De Brito Silva, A. G. (2018). Agronomic efficiency of NBPT as a urease inhibitor: A review. Journal of Advanced Research, 13,19-27. https://doi.org/10.1016/j.jare.2018.05.008
  8. Celebi, S. Z., Sahar, A. K., Celebi, R., & Celen, A. E. (2010). The effect to the silage quality of forms and doses of fertilizer with nitrogen on “TTM-815” maize description (Zea mays L.). Journal of Agriculture Faculty of Ege University, 47(1), 61-69.

Details

Primary Language

English

Subjects

Fertilisers and Application

Journal Section

Research Article

Publication Date

June 23, 2025

Submission Date

November 6, 2024

Acceptance Date

March 10, 2025

Published in Issue

Year 2025 Volume: 30 Number: 1

APA
Öktem, A. G., Ağaçkesen, M. N., & Öktem, A. (2025). Effect of Slow-Release Nitrogen Fertilizer with NBPT Inhibitor on Popcorn (Zea mays L. everta) Yield and Quality. Turkish Journal Of Field Crops, 30(1), 1-10. https://doi.org/10.17557/tjfc.1580477
AMA
1.Öktem AG, Ağaçkesen MN, Öktem A. Effect of Slow-Release Nitrogen Fertilizer with NBPT Inhibitor on Popcorn (Zea mays L. everta) Yield and Quality. TJFC. 2025;30(1):1-10. doi:10.17557/tjfc.1580477
Chicago
Öktem, Ayşe Gülgün, Mahmut Nedim Ağaçkesen, and Abdullah Öktem. 2025. “Effect of Slow-Release Nitrogen Fertilizer With NBPT Inhibitor on Popcorn (Zea Mays L. Everta) Yield and Quality”. Turkish Journal Of Field Crops 30 (1): 1-10. https://doi.org/10.17557/tjfc.1580477.
EndNote
Öktem AG, Ağaçkesen MN, Öktem A (June 1, 2025) Effect of Slow-Release Nitrogen Fertilizer with NBPT Inhibitor on Popcorn (Zea mays L. everta) Yield and Quality. Turkish Journal Of Field Crops 30 1 1–10.
IEEE
[1]A. G. Öktem, M. N. Ağaçkesen, and A. Öktem, “Effect of Slow-Release Nitrogen Fertilizer with NBPT Inhibitor on Popcorn (Zea mays L. everta) Yield and Quality”, TJFC, vol. 30, no. 1, pp. 1–10, June 2025, doi: 10.17557/tjfc.1580477.
ISNAD
Öktem, Ayşe Gülgün - Ağaçkesen, Mahmut Nedim - Öktem, Abdullah. “Effect of Slow-Release Nitrogen Fertilizer With NBPT Inhibitor on Popcorn (Zea Mays L. Everta) Yield and Quality”. Turkish Journal Of Field Crops 30/1 (June 1, 2025): 1-10. https://doi.org/10.17557/tjfc.1580477.
JAMA
1.Öktem AG, Ağaçkesen MN, Öktem A. Effect of Slow-Release Nitrogen Fertilizer with NBPT Inhibitor on Popcorn (Zea mays L. everta) Yield and Quality. TJFC. 2025;30:1–10.
MLA
Öktem, Ayşe Gülgün, et al. “Effect of Slow-Release Nitrogen Fertilizer With NBPT Inhibitor on Popcorn (Zea Mays L. Everta) Yield and Quality”. Turkish Journal Of Field Crops, vol. 30, no. 1, June 2025, pp. 1-10, doi:10.17557/tjfc.1580477.
Vancouver
1.Ayşe Gülgün Öktem, Mahmut Nedim Ağaçkesen, Abdullah Öktem. Effect of Slow-Release Nitrogen Fertilizer with NBPT Inhibitor on Popcorn (Zea mays L. everta) Yield and Quality. TJFC. 2025 Jun. 1;30(1):1-10. doi:10.17557/tjfc.1580477

Cited By

Turkish Journal of Field Crops is published by the Society of Field Crops Science and issued twice a year.
Owner : Prof. Dr. Behçet KIR
Ege University, Faculty of Agriculture, Department of Field Crops
Editor in Chief : Prof. Dr. Emre ILKER
Address : 848 sok. 2. Beyler İşhanı No:72, Kat:3 D.313 35000 Konak-Izmir, TURKEY
Email :  turkishjournaloffieldcrops@gmail.com contact@field-crops.org