تاثير آبياري سطحي و زيرسطحي با پساب تصفيه شده بر خصوصيات چمن برموداگراس

Effect of surface and subsurface irrigation with treated wastewater on bermudagrass properties

Due to limitation of water resources, the use of wastewater for agriculture and landscape is unavoidable. The wastewater is a new water source and its application requires special management. If wastewater is applied with suitable irrigation methods, it helps to solve the environmental contaminations, sanitary and water scarcity problems. The effects of wastewater on some visual and chemical properties of bermudagrass were investigated in 2005 at Mahmoudabad Research Centre located at Isfahan. The experiment was a factorial completely randomized design with two main treatments (surface and subsurface irrigation methods) and two sub-treatments (groundwater and wastewater) using three replications for each treatment. The results showed that wastewater application had no significant effect on the colour, density and nitrogen uptake of bermudagrass. The height and dry matter yield of bermudagrass irrigated with wastewater were significantly greater than those irrigated with groundwater. Phosphorous uptake of bermudagrass irrigated with wastewater (1268.85 mg/kg) was greater than that of groundwater (809.97 mg/kg). Phosphorous uptake of bermudagrass irrigated with wastewater (12448 mg/kg) was also greater than that of groundwater (11820 mg/kg). The irrigation method had no significant effect on colour, density, height and dry matter yield of bermudagrass and nitrogen, phosphorous and potassium uptake of bermudagrass.