Some Soil Chemical Properties at Different Depths in inner and outer of the Plant Canopy of Russian Thistle

This study was carried out to determine the acidity (pH), electrical conductivity (EC), lime, organic matter (OM), nitrogen (N), calcium (Ca), potassium (K), magnesium (Mg), sodium (Na) and phosphorus (P) contents at different soil depths in the inner and outer of the plant canopy of russian thistle (Salsola ruthenica Iljin) growing under the ecological conditions of Igdir province. The study was conducted in 2023 according to the split-plot experimental design with three replications. According to the research results, it was observed that there were significant differences in pH, lime, calcium, potassium and magnesium contents in the soils taken from inner and outer the plant canopy Compared to the soils taken outer the canopy, the pH value and calcium content of the soils taken inner the canopywere lower, while the lime, potassium and magnesium contents were higher. Significant changes were observed in the EC, nitrogen, calcium, potassium, magnesium and sodium contents of the soils taken from different depths. The highest EC value and calcium content were determined at 0-20 and 20-40 cm soil depth. Nitrogen content was determined at 0-20 and 40-60 cm soil depth, potassium and sodium content was determined at 40-60 cm soil depth, and magnesium content was determined at 20-40 cm soil depth.