Response of three ecotypes of grass pea (Lathyrus sativus L.) to the application of chemical and biological fertilizers under dryland farming conditions of Lorestan province

Articles in Press

Document Type : Research Paper

Authors

1 Department of Agronomy, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran

2 Depertment of Agrotechnology, Faculty of Agriculture, Tarbioat Modares University, Tehran , Iran

3 Department of Agricultural Sciences, National University of Skills, Tehran, Iran

10.22034/saps.2026.69833.3420

Abstract

Background and Objective: The increasing demand for animal protein has increased the importance of forage and grain legumes. To develop sustainable agriculture and reduce production costs, this study was conducted to evaluate the effect of chemical and biological fertilizers on the yield of grasspea in dryland farming condition.
Materials and Methods: Three-factor experiment was conducted with split factorial arrangement of treatments in RCBD with three replications on 2023-2024 in Chegni, Lorestan province. The first and second factors were N, P source and foliar spraying of micronutrients including biological, chemical and control respectively. The grasspea ecotypes (Khoramabad, MianDoab and Zanjan) was the third factor. Factorial of the first and second factor placed in main plots and the ecotypes in subplots. Sowing was done on March 25 and after 95 days, grain yield and it’s components were evaluated.
Results: Considering the significant interaction of NP source × micronutrient source, it can be said that although the purely chemical treatment (urea + superphosphate + micropod) with an average grain yield of 1444.12 kg.ha-1 was superior to the other treatments, it was placed in the same statistical group with the treatments urea + superphosphate + yeast extract (1417.6 kg ha-1) and Biofarm + biophosphate + micropod (1342.6 kg ha-1).
Conclusion: The Khorramabad ecotype with an average yield of 1236 kg.ha-1 was superior ecotype. Since the integrated treatments did’nt have significant difference from the chemical treatment, biological fertilizers (yeast; biopharm + biophosphate) can be substituted for chemical resources to reduce costs and achieve sustainable agriculture.

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Journal of Agricultural Science and Sustainable Production

Articles in Press, Accepted Manuscript
Available Online from 22 July 2027

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