Effects of Integrated Nutrient Management on Yield and Economic Efficiency Index of Irrigated Wheat under Field Conditions in Southern Kerman

Document Type : Promotional

Authors

1 Faculty Member of Soil and Water Research Department, South Kerman Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Jiroft, Iran

2 Faculty Member of Soil and Water Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.

3 Master of Science, Soil and Water Research Department, South Kerman Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Jiroft, Iran

Abstract

This pilot research-extension study was conducted in southern Kerman during the farming year 2022-2023 to evaluate the impacts of different soil fertilization methods on the quantitative yield and economic efficiency of wheat (Triticum aestivum L., cv. Chamran 2). For this purpose, three treatments in 1000 m² plots were implemented and compared: 1) Control (local farmer conventional practice), 2) soil-test-based chemical fertilization (including urea, superphosphate, and potassium sulfate), and 3) integrated optimal nutrition (chemical fertilizer, manure, bio-fertilizer, and growth stimulants). Statistical analyses were performed using a Completely Randomized Design (CRD) with five random samples from each plot serving as replications. At the end of the growing season, final grain yield and its key components were accurately measured. The results of data analysis showed that the integrated nutrition treatment (Treatment 3) achieved the highest quantitative yield with an average grain yield of 7300 kg/ha, which is by 37% higher than that achieved by the soil-test-based chemical fertilization (Treatment 2) and by 73% higher than that recorded for the control (Treatment 1). Despite the higher yield of Treatment 3, economic evaluation based on the benefit-cost ratio revealed that the soil-test-based chemical fertilization (Treatment 2) was the most economically efficient option, achieving the highest benefit-cost ratio of 1.45. These findings clearly confirm that both (chemical and integrated) soil-test-based fertilizer management methods are significantly superior to the conventional practice in terms of production. While the integrated nutrition approach offers the potential to achieve maximum possible yield, application of chemical fertilizer based on soil testing provides greater short-term economic profits for the farmer. The final choice between these two methods will depend on the farmer's management strategy and priorities.

Keywords

References

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https://doi.org/10.22092/lmj.2020.128264.208

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Land Management Journal
Volume 13, Issue 2
January 2026
Pages 207-218

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