The role of mycorrhiza and humic acid on quantitative and qualitative traits of faba bean plant under different fertilizer regimes

Mandana Mirbakhsh, Seyedeh Sara SOHRABİ SEDEH
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Abstract

In sustainable agricultural ecosystem management, a key focus is on minimizing chemical fertilizer use and maximizing the use of non-chemical alternatives. Our study was designed to explore the impact of mycorrhizal fungi and humic acid (HA) on the quantitative and qualitative characteristics of faba beans under varying chemical fertilizer levels. The experiment involved different treatments, which included HA and mycorrhiza in four variations (control, HA, HA+ mycorrhiza, and mycorrhiza alone), and nitrogen, phosphorus, and potassium (NPK) fertilizers at three different dosages (50%, 75%, and 100% of the recommended amount). The findings revealed that combining HA with mycorrhiza significantly influenced root colonization, with the highest chlorophyll a concentration (1.58 mg g⁻¹) observed in the HA+ mycorrhiza treatment at 75% NPK. This treatment also led to the highest counts in seeds per pod, number of pods, and weight of 100 seeds. Between the 100% and 75% NPK levels in the HA+ mycorrhiza treatment, no significant differences were noted in terms of grain and biological yield. The greatest grain yields were measured at 4356 kg ha⁻¹ and 4322 kg ha⁻¹ for the HA+ mycorrhiza treatment at 100% and 75% NPK, respectively. Additionally, the highest concentrations of Fe, N, P, K, and Zn were observed with the HA+ mycorrhiza application at the 100% NPK level.
不同肥料制度下菌根和腐植酸对蚕豆植物数量和质量性状的影响
在可持续农业生态系统管理中,最大限度地减少化肥使用和最大限度地使用非化学替代品是一个重点。我们的研究旨在探讨菌根真菌和腐植酸(HA)在不同化肥水平下对蚕豆数量和质量特性的影响。实验涉及不同的处理,其中包括四种不同的 HA 和菌根(对照、HA、HA+ 菌根和单独菌根),以及三种不同用量的氮磷钾(NPK)肥料(建议用量的 50%、75% 和 100%)。研究结果表明,HA 与菌根的结合会显著影响根的定殖,在 75% NPK 的 HA+ 菌根处理中观察到最高的叶绿素 a 浓度(1.58 mg g-¹)。该处理还导致每荚种子数、荚果数和 100 粒种子重量最高。在氮磷钾含量为 100%和 75%的 HA+菌根处理中,谷物产量和生物产量没有显著差异。在氮磷钾含量为 100% 和 75% 的情况下,HA+菌根处理的最大谷物产量分别为 4356 kg ha-¹ 和 4322 kg ha-¹。此外,在施用 100%氮磷钾水平的 HA+菌根处理中,铁、氮、磷、钾和锌的浓度最高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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