تاثير آبياري با پساب بر برخي ويژگي هاي چمن ژاپني در بافت هاي مختلف خاك

Effect of Irrigation with Wastewater on Some Characteristics of Zosiagrass in Different Soil Textures

In this research, the effect of secondary treated wastewater (TW) of Shahinshahr Wastewater Treatment Plant on some characteristic of turfgrass with three soil textures was studied. Experiment was performed in pot in a completely randomized block with a factorial design, with three factors and three replications for a period of 10 months. The first factor was a mixture of water and TW (100%water, 75% water and 25% TW, 50% water and 50% TW and 100% TW), the second factor was soil texture (sandy loam, loam and clay loam) and the third factor was varieties of Zoysiagrass (DALZM1, DALZM2, DALZM3, DALZJ1 and Mayko). Using TW increased turfgrassʹs color, height and yield. The maximum color and height observed using a mixture of 75% TW and 25% water, and the maximum yield was obtained in irrigation with 100% TW. The highest color (5.53) was associated with DALZM3 variety, and DALZJ1 variety had the maximum height (12.5 cm) and yield (180.7 g per pot). Interaction of percentage of TW and variety indicated that the highest color (5.73) was obtained in DALZM3 variety using 100% TW, and DALZJ1 variety had the highest height (13.5 cm) and yield (248.3 g per pot) using 75% TW and 25% water. Therefore, using TW has no negative effect on measured characteristics.