Hazrati Saeid, Khurizadeh Sara, Sadeghi Amir Reza
Department of Agronomy, Faculty of Agriculture, Azarbaijan Shahid Madani University, Iran.
Saudi J Biol Sci. 2022 Mar;29(3):1707-1716. doi: 10.1016/j.sjbs.2021.10.059. Epub 2021 Oct 25.
Soil moisture and nitrogen (N) are two of the most important factors affecting the production of medicinal plants. So, the management strategy of these factors is critical and to be identified. In order to study the application of zeolite (Z) (0 and 10 ton ha) in culture medium under different irrigation regimes (30 % depletion of available soil water (ASW)) and 60 % depletion of ASW) and N (0, 75 and 150 kg N ha) a split-factorial experiment was carried out with three replicates in 2018. The highest fresh and dry weight were achieved at irrigation after 30 % depletion of ASW while using 150 kg N ha and 10 ton Z ha. Maximum water use efficiency (WUE) (22.10 g.L) was obtained after 60 % depletion of ASW and 150 kg N ha and 10 ton Z ha. Besides, the maximum nitrogen use efficiency (NUE) was obtained after 60 % depletion of ASW and 75 kg N ha and 10 ton Z ha (14.25 kg.kgN). Maximum essential oil (EO) content (1.06%) and -Thujone were obtained from plants subjected to 60 % depletion of ASW and, application of 75 kg N ha and 10 ton Z ha. Applying Z with N, in different irrigation regimes did improve soil conditions for achieving higher, WUE and NUE, increased the EO content and yield while decreasing the negative effects from water-deficit stress and has provided a direction towards a stable system.
土壤湿度和氮素是影响药用植物产量的两个最重要因素。因此，这些因素的管理策略至关重要且有待确定。为了研究沸石（Z）（0和10吨/公顷）在不同灌溉制度（有效土壤水分（ASW）消耗30%和60%）以及氮素（0、75和150千克氮/公顷）条件下在培养基中的应用，2018年进行了一项裂区试验，重复三次。在ASW消耗30%后进行灌溉，同时使用150千克氮/公顷和10吨Z/公顷时，获得了最高的鲜重和干重。在ASW消耗60%、150千克氮/公顷和10吨Z/公顷后，获得了最大水分利用效率（WUE）（22.10克/升）。此外，在ASW消耗60%、75千克氮/公顷和10吨Z/公顷后，获得了最大氮素利用效率（NUE）（14.25千克/千克氮）。从ASW消耗60%、施用75千克氮/公顷和10吨Z/公顷的植物中获得了最高的精油（EO）含量（1.06%）和α-侧柏酮。在不同灌溉制度下将Z与N一起施用确实改善了土壤条件，以实现更高的WUE和NUE，增加了EO含量和产量，同时减少了水分亏缺胁迫的负面影响，并为稳定系统提供了一个方向。
