Sustainable Maize Production: Evaluating Nitrogen Levels and Slow-Release Fertilizer Effects in Nepal

Krisha Dotel; Sunil Chhantyal; Surya Bahadur Thapa; Sanisha Poudel; Sabina Raut

doi:10.31015/2025.4.1

Sustainable Maize Production: Evaluating Nitrogen Levels and Slow-Release Fertilizer Effects in Nepal

Abstract

The decline in crop productivity and nitrogen use efficiency (NUE) has been attributed to improper fertilizer application balance and inappropriate fertilizer sources. A field experiment was carried out to study the effect of different nitrogen levels and Urea Deep Placement (UDP) on the growth and yield of maize (Rampur composite). A single-factor Randomized Complete Block Design (RCBD) was used to set up the experiment, which consisted of eight treatments with three replications. The outcomes demonstrated that the treatment combination significantly affected the plant height and number of leaves only at 60 DAS, yield attributes, and grain yield of maize. Likewise, the findings revealed that 180:60:40 NPK kg ha-1 obtained the highest grain yield of 8.08 t ha-1, followed by 240:60:40 NPK kg ha-1 with 7.35 t ha-1, whereas the control group displayed the lowest yield of 4 t ha-1. The recommended dose of fertilizer (RDF) demonstrates an equivalent yield of 6.53 t ha-1 with UDP, which is a 25% lower nitrogen dose than RDF. Growth and yield increase with increasing nitrogen levels up to 180 kg N ha-1, but further increases of nitrogen lead to a negative impact on it. Therefore, this research showed that the treatment 180:60:40 kg NPK ha-1 was the most appropriate for producing maize in the spring season at Gothgaun, Morang.

Keywords

Grain yield, Maize, Nitrogen, Nitrogen use efficiency, Urea deep placement

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Details

Primary Language

English

Subjects

Agronomy

Journal Section

Research Article

Authors

Krisha Dotel ^*
0009-0006-5228-211X
Nepal

Sunil Chhantyal This is me
0009-0000-0193-441X
Nepal

Surya Bahadur Thapa This is me
0000-0001-7871-1011
Nepal

Sanisha Poudel This is me
0009-0002-5258-8056
Nepal

Sabina Raut This is me
0009-0005-1406-2469
Nepal

Early Pub Date

December 16, 2025

Publication Date

December 26, 2025

Submission Date

July 23, 2025

Acceptance Date

October 14, 2025

Published in Issue

Year 2025 Volume: 9 Number: 4

DOI

https://doi.org/10.31015/2025.4.1

IZ

https://izlik.org/JA69BL35HX

APA

Dotel, K., Chhantyal, S., Thapa, S. B., Poudel, S., & Raut, S. (2025). Sustainable Maize Production: Evaluating Nitrogen Levels and Slow-Release Fertilizer Effects in Nepal. International Journal of Agriculture Environment and Food Sciences, 9(4), 988-998. https://doi.org/10.31015/2025.4.1

AMA

1.Dotel K, Chhantyal S, Thapa SB, Poudel S, Raut S. Sustainable Maize Production: Evaluating Nitrogen Levels and Slow-Release Fertilizer Effects in Nepal. int. j. agric. environ. food sci. 2025;9(4):988-998. doi:10.31015/2025.4.1

Chicago

Dotel, Krisha, Sunil Chhantyal, Surya Bahadur Thapa, Sanisha Poudel, and Sabina Raut. 2025. “Sustainable Maize Production: Evaluating Nitrogen Levels and Slow-Release Fertilizer Effects in Nepal”. International Journal of Agriculture Environment and Food Sciences 9 (4): 988-98. https://doi.org/10.31015/2025.4.1.

EndNote

Dotel K, Chhantyal S, Thapa SB, Poudel S, Raut S (December 1, 2025) Sustainable Maize Production: Evaluating Nitrogen Levels and Slow-Release Fertilizer Effects in Nepal. International Journal of Agriculture Environment and Food Sciences 9 4 988–998.

IEEE

[1]K. Dotel, S. Chhantyal, S. B. Thapa, S. Poudel, and S. Raut, “Sustainable Maize Production: Evaluating Nitrogen Levels and Slow-Release Fertilizer Effects in Nepal”, int. j. agric. environ. food sci., vol. 9, no. 4, pp. 988–998, Dec. 2025, doi: 10.31015/2025.4.1.

ISNAD

Dotel, Krisha - Chhantyal, Sunil - Thapa, Surya Bahadur - Poudel, Sanisha - Raut, Sabina. “Sustainable Maize Production: Evaluating Nitrogen Levels and Slow-Release Fertilizer Effects in Nepal”. International Journal of Agriculture Environment and Food Sciences 9/4 (December 1, 2025): 988-998. https://doi.org/10.31015/2025.4.1.

JAMA

1.Dotel K, Chhantyal S, Thapa SB, Poudel S, Raut S. Sustainable Maize Production: Evaluating Nitrogen Levels and Slow-Release Fertilizer Effects in Nepal. int. j. agric. environ. food sci. 2025;9:988–998.

MLA

Dotel, Krisha, et al. “Sustainable Maize Production: Evaluating Nitrogen Levels and Slow-Release Fertilizer Effects in Nepal”. International Journal of Agriculture Environment and Food Sciences, vol. 9, no. 4, Dec. 2025, pp. 988-9, doi:10.31015/2025.4.1.

Vancouver

1.Krisha Dotel, Sunil Chhantyal, Surya Bahadur Thapa, Sanisha Poudel, Sabina Raut. Sustainable Maize Production: Evaluating Nitrogen Levels and Slow-Release Fertilizer Effects in Nepal. int. j. agric. environ. food sci. 2025 Dec. 1;9(4):988-9. doi:10.31015/2025.4.1

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Sustainable Maize Production: Evaluating Nitrogen Levels and Slow-Release Fertilizer Effects in Nepal

Sustainable Maize Production: Evaluating Nitrogen Levels and Slow-Release Fertilizer Effects in Nepal

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