The effect of Exserohilum rostratum NMS1.5, Xylariaceae sp. KKL3 and zeolite/chitosan on non-contaminated and contaminated soil

Abstract

Abstract This work examined the influence of endophytic fungi strains Exserohilum rostratum NMS1.5 and Xylariaceae sp. KKL3 mixed zeolite/chitosan (ZL-CH) on non-contaminated and contaminated azo dye AR88 soil. The experiment used a randomized complete block design (RCBD) with the LSD test (p<0.05) for 10 treatments consisting of 50 grams of soil (non-contaminated) and 50 grams mixed 5 mg/L of azo dye AR88 (contaminated soil), 0.1-gram ZL-CHand 2 mL of each endophytic fungi. We conducted it under aerobic conditions at room temperature. After 14 days, soil pH, organic carbon (SOC), available P, and cation exchange capacity (CEC) were measured. The statistical analysis showed a significant difference between treatment and control (soil only). We found that Exserohilum rostratum NMS1.5 and Xylariaceae sp. KKL3 increases soil pH, available P, and cation exchange capacity, then slightly increases when added ZL-CH. However, the treatment with Xylariaceae sp. KKL3 was better than Exserohilum rostratum NMS1.5 for SOC. However, the best treatment was obtained in the absence application of azo dye AR88 for available P and CEC.