Combined effects of deficit irrigation and biochar application on seed yield and its components in three different sesame varieties grown in sandy soil conditions

To answer the question, "Is biochar application considered an effective tool for mitigating the negative impacts of water stress on sesame production?" So, two experiments were conducted at the Ismailia Agricultural Research Station in Egypt during summer 2022 and 2023. For each irrigation regime, the experiment was conducted in a randomized complete block design using a split-plot arrangement with three replications. The main plots received biochar application rates, while sub-plots planted sesame varieties. The study found that deficit irrigation combined with biochar application significantly improved seed yield and its components in all three sesame varieties. The combination of deficit irrigation with biochar application was found to be a sustainable approach for improving sesame production in sandy soil conditions. Furthermore, biochar application had proven its ability to mitigate the negative effects of deficit irrigation, resulting in higher seed yields.