Intervention of rhamnolipid improves the rhizosphere microenvironment of cotton in desert saline lands

• DOI: 10.1016/j.eti.2023.103378
• Publication Date: 2023-09-27T15:55:51Z
• Authors: Qing Liu; Chunlei Chen; Youhua Chen; Binchuan Huang; Yuhui Yang; Hao Zhu; Yanhong Li; Xingpeng Wang; Chunfang Zhang
• Keywords: Rhamnolipid

Rhamnolipids have been extensively studied for the remediation of soils contaminated with petroleum hydrocarbons. However, literature on effects rhamnolipids soil microenvironment is scarce. In this study, we adopted a drip irrigation technique to apply rhamnolipid solution planted cotton in saline desert area. The results showed that addition increased organic matter by 5.0–31.6% and reduced electrical conductivity 0.3–42.4%. Additionally, it improved nutrient conditions, reshaped composition function microbial community rhizosphere soil, ultimately promoted growth 3.3 – 9.0%. Simultaneously, enriched diversity bacterial community. Although fungal communities, optimized structure fungi. It worth noting higher concentrations may toxic fungi, mechanism which unknown. These findings shed new light understanding microorganisms provide direction sustainable agricultural production.